US755804A - Screw for metal, wood, &c., and means for operating same. - Google Patents
Screw for metal, wood, &c., and means for operating same. Download PDFInfo
- Publication number
- US755804A US755804A US9917802A US1902099178A US755804A US 755804 A US755804 A US 755804A US 9917802 A US9917802 A US 9917802A US 1902099178 A US1902099178 A US 1902099178A US 755804 A US755804 A US 755804A
- Authority
- US
- United States
- Prior art keywords
- screw
- wood
- screws
- metal
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 title description 5
- 229910052751 metal Inorganic materials 0.000 title description 5
- 239000002023 wood Substances 0.000 title description 5
- 230000000295 complement effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- -1 gunmet-al Chemical compound 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/91—Antitamper means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/919—Screw having driving contacts
Definitions
- This invention relates to the construction of the heads of wood, metal, or other screws of various descriptions and to the means for operating them Hitherto these heads have usually been constructed with a nick or sawcut to receive the end of a screw -driver whereby they could be rotated for the purpose of either forcing them into or withdrawing them from the article or articles to be joined.
- the object of this invention is to obviate the necessity for constructing or employing this nick or saw-cut, thereby effecting a saving in the cost of manufacture and providing a screw which while it can readily be inserted into or withdrawn from any article by those having the necessary appliance cannot be removed by an unauthorized person.
- This object I attain by providing the head of the screw with a conical gripping-surface for the application of a tool or driver having a complementary gripping-surface.
- the angle of the taper may, however, vary from five degrees to 0.18 degrees included anglethat is to say, the angle included between the two tapering sides of the conical gripping-surface in contradistinction to the angle between the said tapering sides and the axis of the grippingsurfaceso that such ascrew can neither be screwed into or out of parts to be joined or disjointed, except by a driver having a complementary gripping -surface, whereby the screw practically performs the function of a lock and the driver the key, since it is obvious that unless the driver fits the grippingsurface exactly the screw cannot be unscrewed.
- FIGS. 1 to 5 are side elevations (some shown partly in section) illustrating a few modified constructions of screws embodying my invention.
- Figs. 1 to 5? are plans showing various devices for marking or ornamenting the heads of said screws.
- Figs. 6 to 8 are views illustrating the appliance used for operating screws constructed according to this invention.
- Screws constructed according to this invention may be right or left hand threaded, and the root of the thread may be either parallel, as illustrated in Figs. 1, 2, 3, and 5, or tapering, as illustrated in Fig. 4:, and the invention is equally adapted for screws for wood, as illustrated in Figs, 1 to 4, or for metal, as illustrated in Fig. 5.
- the essential feature of this invention consists in forming the head of the screw with a slightly-tapering periphery or projection, the angle of which is very small, and in practice I have found that from two degrees to three and one-half degrees included angle is ample for the purpose.
- the screws are adapted to be driven or countersunk in flush with the surface of the work, the tapering projection above referred to being provided on the inner side Z) of a groove 64, which is turned in the head of. the screw, said inner side of said groove being slightly tapered, as indicated by the dotted lines 0.
- the construction shown in Fig. 2 is'similar, so far as this invention is concerned, to that illustrated in Fig. 1; but in Fig.
- the outer periphery of the head of the screw is tapered.
- the head of the screw may be convex, as illustrated in Fig. 3, or it may be concave or flat, as illustrated in Fig. 4E.
- the tapered portion of the head of the screw need not exceed one-sixteenth of an inch in depth, that being quite sufiicient to provide ample grip for the purpose of rotating the screw, as hereinafter described.
- the head of the screws may be stamped or formed with letters or other marks, as illustrated in Figs. 3 to 5.
- the appliance used for operating screws constructed as above described is formed with a socket or recess corresponding exactly in size and taper with the conical head or projection with which it is to engage.
- Asimple form of the appliance is illustrated in Fig. 6 and is adapted to be used after the manner of an ordinary screw-driver, or it can be constructed, as illustrated in Fig. 7 to fit into a brace.
- the socket in its lower end may be used to receive a separate piece having a smaller socket, as illustrated in Fig. 6, to suit smaller-sized screws, the taper d of the sockets in the lower ends of the operatingtools being in all cases made to exactly correspond and closely engage with the corresponding taper on the heads of the screws.
- the appliance for operating these screws can be shortened, as indicated in Fig. 8, and the socket on its lower end may be provided with a set-screw 0, whereby arbors of various sizes,
- the screws may be made in copper, gunmet-al, iron, steel, or any suitable alloy, and the wood-screw will be found particularly valuable for furniture manufacturers, carriage builders, and the like.
- a screw having a head provided with a conical gripping-surface of a given included angle for the purpose of preventing the driving or unscrewing of the screw except by a tool having a gripping-surface of the same given included angle.
- a screw provided with a conical head of a given included angle not exceeding five degrees for the purpose of preventing the driving or unscrewing of the screw except by a tool having a complementary gripping-socket of the same given angle.
Description
PATENTED MAR. 29, 1904.
G. G. SMITH. SCREW FOR METAL, WOOD, &0., AND MEANS FOR OPERATING SAME.
APPLIOATION FILED MAR. 20. 1902.
N0 MODEL.
talilllll U ITED STATE Patented March 29,1904.
PATENT OFFICE.
GEORGE CROGKER SMITH, OF ST. KILDA, NEAR MELBOURNE, VICTORIA,
' AUSTRALIA.
SCREW FOR METAL, WOOD, 81.0., AND MEANS FOR OPERATING SAME.
SPECIFICATION forming part of Letters Patent No. 755,804, dated March 29, 1904.
' Application filed March 20, 1902. Serial I To. 99,178. (No model.)
To all whom it may concern:
Be itknown that I, GEORGE CRooKER SMITH,
machinist, a citizen of the Commonwealth of- Australia, residing at 67 Odessa street, St. Kilda, near Melbourne, in the State of Victoria, Commonwealth of Australia, have invented an Improved Screw for Metal, Wood, or General Purposes and Means for Operating Same, of which the following is a specification.
This invention relates to the construction of the heads of wood, metal, or other screws of various descriptions and to the means for operating them Hitherto these heads have usually been constructed with a nick or sawcut to receive the end of a screw -driver whereby they could be rotated for the purpose of either forcing them into or withdrawing them from the article or articles to be joined.
The object of this invention is to obviate the necessity for constructing or employing this nick or saw-cut, thereby effecting a saving in the cost of manufacture and providing a screw which while it can readily be inserted into or withdrawn from any article by those having the necessary appliance cannot be removed by an unauthorized person. This object I attain by providing the head of the screw with a conical gripping-surface for the application of a tool or driver having a complementary gripping-surface. The angle of the taper may, however, vary from five degrees to 0.18 degrees included anglethat is to say, the angle included between the two tapering sides of the conical gripping-surface in contradistinction to the angle between the said tapering sides and the axis of the grippingsurfaceso that such ascrew can neither be screwed into or out of parts to be joined or disjointed, except by a driver having a complementary gripping -surface, whereby the screw practically performs the function of a lock and the driver the key, since it is obvious that unless the driver fits the grippingsurface exactly the screw cannot be unscrewed.
As is well known, the gripping action of complementary taper surfaces is no] when the taper exceeds five degrees included angle,
while said gripping action becomes more intense or greater in proportion to the reduction of the angle of the taper and greatest at 0.18 degrees included angle or one-sixteenth of an inch to a foot, so that a simple means is here afforded to prevent manipulation of screws by unauthorized per-sons.
In order, however, that my invention may be clearly understood, I will describe it by reference to the accompanying drawings, in which Figures 1 to 5 are side elevations (some shown partly in section) illustrating a few modified constructions of screws embodying my invention. Figs. 1 to 5? are plans showing various devices for marking or ornamenting the heads of said screws. Figs. 6 to 8 are views illustrating the appliance used for operating screws constructed according to this invention.
The same letters of reference indicate the same or corresponding parts in all the figures.
Screws constructed according to this invention may be right or left hand threaded, and the root of the thread may be either parallel, as illustrated in Figs. 1, 2, 3, and 5, or tapering, as illustrated in Fig. 4:, and the invention is equally adapted for screws for wood, as illustrated in Figs, 1 to 4, or for metal, as illustrated in Fig. 5.
The essential feature of this invention consists in forming the head of the screw with a slightly-tapering periphery or projection, the angle of which is very small, and in practice I have found that from two degrees to three and one-half degrees included angle is ample for the purpose. In the construction illustrated in Figs. 1 and 2 the screws are adapted to be driven or countersunk in flush with the surface of the work, the tapering projection above referred to being provided on the inner side Z) of a groove 64, which is turned in the head of. the screw, said inner side of said groove being slightly tapered, as indicated by the dotted lines 0. The construction shown in Fig. 2 is'similar, so far as this invention is concerned, to that illustrated in Fig. 1; but in Fig. 3 the outer periphery of the head of the screw is tapered. The head of the screw may be convex, as illustrated in Fig. 3, or it may be concave or flat, as illustrated in Fig. 4E. The tapered portion of the head of the screw need not exceed one-sixteenth of an inch in depth, that being quite sufiicient to provide ample grip for the purpose of rotating the screw, as hereinafter described. The head of the screws may be stamped or formed with letters or other marks, as illustrated in Figs. 3 to 5.
The appliance used for operating screws constructed as above described is formed with a socket or recess corresponding exactly in size and taper with the conical head or projection with which it is to engage. Asimple form of the appliance is illustrated in Fig. 6 and is adapted to be used after the manner of an ordinary screw-driver, or it can be constructed, as illustrated in Fig. 7 to fit into a brace. The socket in its lower end may be used to receive a separate piece having a smaller socket, as illustrated in Fig. 6, to suit smaller-sized screws, the taper d of the sockets in the lower ends of the operatingtools being in all cases made to exactly correspond and closely engage with the corresponding taper on the heads of the screws. The appliance for operating these screws can be shortened, as indicated in Fig. 8, and the socket on its lower end may be provided with a set-screw 0, whereby arbors of various sizes,
as illustrated in Fig. 8, may be secured in position therein.
The screws may be made in copper, gunmet-al, iron, steel, or any suitable alloy, and the wood-screw will be found particularly valuable for furniture manufacturers, carriage builders, and the like.
The application of the appliance illustrated in Figs. 6 to 8 does not injure the head of the screw in any way, and there is no risk of the work being damaged by the tools slipping off the head and coming in violent contact with it. The tendency of the tool on the tapering head or projection of the screw is to compress the metal' thereof, and thereby insures a firm grip being maintained. Another important feature "of this invention is that for certain purposesas for instance, for railway worka special angle or amount of taper for the tapering head or projection and appliance to be used therewith may be adopted exclusively, sothat the tools in ordinary use would not fit the taper, and consequently could not be used for unfastening these screws, thereby considerably reducing the risk of the fittings of railway-carriages being removed or stolen.
What I claim as my invention, and desire to secure by Letters Patent, is
1. A screw having a head provided with a conical gripping-surface of a given included angle for the purpose of preventing the driving or unscrewing of the screw except by a tool having a gripping-surface of the same given included angle.
2. A screw provided with a conical head of a given included angle not exceeding five degrees for the purpose of preventing the driving or unscrewing of the screw except by a tool having a complementary gripping-socket of the same given angle.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
GEORGE CROCKER SMITH.
Witnesses:
PERCY T. HEDGES, HECTOR MEGGS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9917802A US755804A (en) | 1902-03-20 | 1902-03-20 | Screw for metal, wood, &c., and means for operating same. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9917802A US755804A (en) | 1902-03-20 | 1902-03-20 | Screw for metal, wood, &c., and means for operating same. |
Publications (1)
Publication Number | Publication Date |
---|---|
US755804A true US755804A (en) | 1904-03-29 |
Family
ID=2824296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US9917802A Expired - Lifetime US755804A (en) | 1902-03-20 | 1902-03-20 | Screw for metal, wood, &c., and means for operating same. |
Country Status (1)
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US (1) | US755804A (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770998A (en) * | 1954-12-15 | 1956-11-20 | Robert F Schwartz | Tamper-proof screw having frusto-conical head with flat tool engaging facets thereon |
US2813450A (en) * | 1954-05-03 | 1957-11-19 | Dzus William | Rotatable fastener having circular toothed tool receiving groove |
US3236275A (en) * | 1962-10-24 | 1966-02-22 | Robert D Smith | Screw driver with an h-shaped drawing bit |
US3369441A (en) * | 1966-05-04 | 1968-02-20 | Anchor Engineering Co | Fastener with tapered tool engaging surfaces |
DE2739714A1 (en) * | 1976-09-02 | 1978-03-09 | Hi Shear Corp | NUT WITH ITS OWN TORQUE LIMITER |
USD270229S (en) | 1980-10-22 | 1983-08-23 | The Eastern Company | Tool and operator head for tool-operated lock |
USD270424S (en) | 1980-10-22 | 1983-09-06 | The Eastern Company | Tool operator for tool-operated locks |
US4686874A (en) * | 1985-12-23 | 1987-08-18 | Mcgard, Inc. | Tamper-proof bolt and tamper-proof bolt-key combination |
US4827811A (en) * | 1987-12-11 | 1989-05-09 | Southco, Inc. | Tamper-resistant fastener and tool for operating same |
AT388215B (en) * | 1985-07-11 | 1989-05-26 | Sfs Stadler Ag | Fastener and driving tool therefor |
US5277531A (en) * | 1992-09-10 | 1994-01-11 | Snap-On Tools Corporation | Device having socket with retention surfaces |
US5870934A (en) * | 1997-11-04 | 1999-02-16 | Cullinan; Terrance P. | Anti-theft "O" tool and screw set for license plates |
US5957645A (en) * | 1997-10-31 | 1999-09-28 | Phillips Screw Company | Spiral drive system for threaded fasteners |
US6162225A (en) * | 1998-10-26 | 2000-12-19 | Musculoskeletal Transplant Foundation | Allograft bone fixation screw method and apparatus |
US6186718B1 (en) | 1998-06-18 | 2001-02-13 | Northrop Grumman Corporation | Threaded fastener having a head with a triangle centerpost within a triangle recess |
EP1206648A1 (en) * | 1999-07-12 | 2002-05-22 | Goodcart Pty Ltd. | Security screw |
US6506192B1 (en) | 1998-10-26 | 2003-01-14 | Musculoskeletal Transplant Foundation | Allograft bone fixation screw |
US6626627B2 (en) * | 1997-03-26 | 2003-09-30 | Sfs Industrie Holding Ag | Screw with tamper-proof head |
US6782597B1 (en) | 2001-01-26 | 2004-08-31 | Brant Monson | Method for mounting a bolt on a surface |
US20050141986A1 (en) * | 2003-10-24 | 2005-06-30 | Flesher Robert W. | Tamper-resistant fastener and method and tool for use with same |
US20060076849A1 (en) * | 2004-10-08 | 2006-04-13 | Anne Sedgwick | Supporting device |
US20070110543A1 (en) * | 2005-11-12 | 2007-05-17 | Christopher Milton Fitch | Tail-driven screw fastener for use in tamper-resistant and decorative applications |
US20090260489A1 (en) * | 2008-04-21 | 2009-10-22 | Phua Cheng Siong | Drive system |
WO2010089028A1 (en) | 2009-02-06 | 2010-08-12 | Flaig, Hartmut | Exhaust gas turbocharger and system having an exhaust gas turbocharger |
US20100239386A1 (en) * | 2004-10-08 | 2010-09-23 | Innozinc, Inc. | Supporting device |
US20120126076A1 (en) * | 2008-11-30 | 2012-05-24 | Samsung Electronics Co., Ltd. | Supporting device for display apparatus |
WO2013062895A1 (en) * | 2011-10-26 | 2013-05-02 | Illinois Tool Works Inc. | Screw fastener |
US8794891B1 (en) * | 2013-07-15 | 2014-08-05 | Hirofumi Saito | Round top set screw and application thereof |
US9016995B1 (en) * | 2013-08-02 | 2015-04-28 | Ronald John Janowicz, Sr. | Self-countersinking fastener |
US9282833B2 (en) | 2008-11-30 | 2016-03-15 | Samsung Electronics Co., Ltd. | Supporting device for display apparatus |
USD893987S1 (en) * | 2018-11-14 | 2020-08-25 | Innovative Fasteners Pty Ltd. | One piece fastener |
USD906099S1 (en) * | 2019-02-26 | 2020-12-29 | Winter Equipment Company | Carriage bolt |
-
1902
- 1902-03-20 US US9917802A patent/US755804A/en not_active Expired - Lifetime
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2813450A (en) * | 1954-05-03 | 1957-11-19 | Dzus William | Rotatable fastener having circular toothed tool receiving groove |
US2770998A (en) * | 1954-12-15 | 1956-11-20 | Robert F Schwartz | Tamper-proof screw having frusto-conical head with flat tool engaging facets thereon |
US3236275A (en) * | 1962-10-24 | 1966-02-22 | Robert D Smith | Screw driver with an h-shaped drawing bit |
US3369441A (en) * | 1966-05-04 | 1968-02-20 | Anchor Engineering Co | Fastener with tapered tool engaging surfaces |
DE2739714A1 (en) * | 1976-09-02 | 1978-03-09 | Hi Shear Corp | NUT WITH ITS OWN TORQUE LIMITER |
USD270229S (en) | 1980-10-22 | 1983-08-23 | The Eastern Company | Tool and operator head for tool-operated lock |
USD270424S (en) | 1980-10-22 | 1983-09-06 | The Eastern Company | Tool operator for tool-operated locks |
AT388215B (en) * | 1985-07-11 | 1989-05-26 | Sfs Stadler Ag | Fastener and driving tool therefor |
US4686874A (en) * | 1985-12-23 | 1987-08-18 | Mcgard, Inc. | Tamper-proof bolt and tamper-proof bolt-key combination |
US4827811A (en) * | 1987-12-11 | 1989-05-09 | Southco, Inc. | Tamper-resistant fastener and tool for operating same |
US5277531A (en) * | 1992-09-10 | 1994-01-11 | Snap-On Tools Corporation | Device having socket with retention surfaces |
US6626627B2 (en) * | 1997-03-26 | 2003-09-30 | Sfs Industrie Holding Ag | Screw with tamper-proof head |
US5957645A (en) * | 1997-10-31 | 1999-09-28 | Phillips Screw Company | Spiral drive system for threaded fasteners |
US6234914B1 (en) | 1997-10-31 | 2001-05-22 | Phillips Screw Company | Punch for forming threaded fasteners with spiral drive |
US6367358B1 (en) | 1997-10-31 | 2002-04-09 | Phillips Screw Company | Driver for threaded fasteners with spiral drive |
US5870934A (en) * | 1997-11-04 | 1999-02-16 | Cullinan; Terrance P. | Anti-theft "O" tool and screw set for license plates |
US6186718B1 (en) | 1998-06-18 | 2001-02-13 | Northrop Grumman Corporation | Threaded fastener having a head with a triangle centerpost within a triangle recess |
US6162225A (en) * | 1998-10-26 | 2000-12-19 | Musculoskeletal Transplant Foundation | Allograft bone fixation screw method and apparatus |
US6506192B1 (en) | 1998-10-26 | 2003-01-14 | Musculoskeletal Transplant Foundation | Allograft bone fixation screw |
US6843153B1 (en) * | 1999-07-12 | 2005-01-18 | Good-Cart Pty Ltd | Security screw |
EP1206648A1 (en) * | 1999-07-12 | 2002-05-22 | Goodcart Pty Ltd. | Security screw |
EP1206648A4 (en) * | 1999-07-12 | 2005-07-20 | Goodcart Pty Ltd | Security screw |
US6811365B2 (en) | 2001-01-26 | 2004-11-02 | Brant Monson | Bolt and method of use |
US6782597B1 (en) | 2001-01-26 | 2004-08-31 | Brant Monson | Method for mounting a bolt on a surface |
US20070207008A1 (en) * | 2003-10-24 | 2007-09-06 | Flesher Robert W | Tamper-Resistant Fastener and Method and Tool for Use with Same |
US20050141986A1 (en) * | 2003-10-24 | 2005-06-30 | Flesher Robert W. | Tamper-resistant fastener and method and tool for use with same |
US7066062B2 (en) * | 2003-10-24 | 2006-06-27 | Flesher Robert W | Torque-setting, tamper-resistant fastener and method and tool for use with same |
US20060228190A1 (en) * | 2003-10-24 | 2006-10-12 | Flesher Robert W | Tamper-resistant fastener and method and tool for use with same |
US7441483B2 (en) | 2003-10-24 | 2008-10-28 | Flesher Robert W | Tamper-resistant fastener and method and tool for use with same |
US7713013B2 (en) * | 2004-10-08 | 2010-05-11 | Innozinc, Inc. | Supporting device |
US20060076849A1 (en) * | 2004-10-08 | 2006-04-13 | Anne Sedgwick | Supporting device |
US20100239386A1 (en) * | 2004-10-08 | 2010-09-23 | Innozinc, Inc. | Supporting device |
US20070110543A1 (en) * | 2005-11-12 | 2007-05-17 | Christopher Milton Fitch | Tail-driven screw fastener for use in tamper-resistant and decorative applications |
US20090260489A1 (en) * | 2008-04-21 | 2009-10-22 | Phua Cheng Siong | Drive system |
US8182187B2 (en) | 2008-04-21 | 2012-05-22 | Asia Fastening (Us), Inc. | Drive system |
US9282833B2 (en) | 2008-11-30 | 2016-03-15 | Samsung Electronics Co., Ltd. | Supporting device for display apparatus |
US20120126076A1 (en) * | 2008-11-30 | 2012-05-24 | Samsung Electronics Co., Ltd. | Supporting device for display apparatus |
WO2010089028A1 (en) | 2009-02-06 | 2010-08-12 | Flaig, Hartmut | Exhaust gas turbocharger and system having an exhaust gas turbocharger |
WO2013062895A1 (en) * | 2011-10-26 | 2013-05-02 | Illinois Tool Works Inc. | Screw fastener |
AU2016259456B2 (en) * | 2011-10-26 | 2019-02-14 | Illinois Tool Works Inc. | Screw fastener |
US8794891B1 (en) * | 2013-07-15 | 2014-08-05 | Hirofumi Saito | Round top set screw and application thereof |
US9016995B1 (en) * | 2013-08-02 | 2015-04-28 | Ronald John Janowicz, Sr. | Self-countersinking fastener |
USD893987S1 (en) * | 2018-11-14 | 2020-08-25 | Innovative Fasteners Pty Ltd. | One piece fastener |
USD906099S1 (en) * | 2019-02-26 | 2020-12-29 | Winter Equipment Company | Carriage bolt |
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