US2712160A - Method of making individual bowling - Google Patents
Method of making individual bowling Download PDFInfo
- Publication number
- US2712160A US2712160A US2712160DA US2712160A US 2712160 A US2712160 A US 2712160A US 2712160D A US2712160D A US 2712160DA US 2712160 A US2712160 A US 2712160A
- Authority
- US
- United States
- Prior art keywords
- ball
- cast
- mold
- finger
- thumb
- 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
- 238000004519 manufacturing process Methods 0.000 title description 10
- 210000003811 Fingers Anatomy 0.000 description 42
- 210000003813 Thumb Anatomy 0.000 description 30
- 239000000463 material Substances 0.000 description 20
- 239000000126 substance Substances 0.000 description 20
- 238000002844 melting Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229910001203 Alloy 20 Inorganic materials 0.000 description 4
- 230000037250 Clearance Effects 0.000 description 4
- 230000035512 clearance Effects 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0001—Balls with finger holes, e.g. for bowling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
- B29D22/04—Spherical articles, e.g. balls
-
- 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
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/30—Use of anatomy in making a mold or using said mold
Definitions
- This invention relates to a method of making individual bowling ball grips and has for its primary object accurately to produce in a bowling ball, comfortable cavities conforming to the shape of a thumb and at least one finger of the user to insure accuracy in the holding of the ball preparatory to its delivery.
- Another object is accurately to reproduce a cast of the hand of an individual in gripping position with relation to a bowling ball, which cast may be utilized in the formation of the ball to insure accuracy of the grip.
- this invention which embodies among its features first making an impression of the hand of an individual in a gripping and prior to releasing position, forming a cast in the impression, supporting the cast in a mold in which a ball is to be formed, forming the bowling ball about the cast and subsequently removing the cast and finishing the ball.
- Other features include forming the cast in the impression introducing the cast into a mold having at least a portion of its surface conforming to the configuration of the bowling ball introducing bowling ball forming material into the mold around the cast and subsequently removing the cast and finishing the item so molded.
- Still other features include forming a plug about a cast conforming to the thumb and at least one finger of an individual, removing the cast from the plug, finishing the surrface thereof and introducing the plug into a cavity in a bowling ball to produce a sphere having cavities therein conforming to the shape of the thumb and at least one finger of the individual in gripping position.
- Figure l is a side view partly in section of a mold in which the impression is made of the thumb and at least one finger of the individual to use the ball.
- Figure 2 is a view similar to Figure 1 showing the thumb and finger removed and the cast in the process of being made,
- Figure 3 is a view illustrating the cast in place in a mold in which a bowling ball is to be formed.
- Figure 4 is a side view of the mold illustrating the cast in dotted lines.
- a form 15 preferably of hemi-spherical shape conforming generally to the size and contour of one half of the bowling ball is provided with spaced cavities 16 and 17 into which a shape retaining substance 18 such as liquid rubber, plaster or plastic is introduced.
- This substance has the property of setting slowly upon exposure to air and after introducing the substance into the cavities 16 and 17 the thumb and at least one finger of the individual for whom the bowling ball is to be made is introduced into the cavities so as to cause an impressionto be formed in the shape retaining substance 18 so that the contour of the cavities formed in the substance 18 will conform to the size and shape of the finger and thumb with proper provision made for clearance which is needed when ball is thrown.
- Flexible, snug fitting tubing of previously determined thickness ties previously referred to.
- the cast 22 made therefrom is removed from the form 15 and the impressions 18 and is introduced into a mold half 23 in which one portion of the bowling ball is to be formed.
- the other mold half 24 is then placed in position on the mold half 23 and ball forming material 25 is loaded into the mold so as to surround the projections 27 on the cast 22 as illustrated in Figure 3 and thus form the cavities.
- the ball forming mate'- rial is subjected to heat and pressure, between the mold halves. Said heat and pressure forms a spherical body conforming to the size and shape of a bowling ball and when the material is set and cured, the mold halves 23 and 24 are separated and the ball thus molded together with the cast 22 is removed from the mold.
- the cast 22 is made from a low melting point alloy, it is obvious that the cast 22 may be readily melted from the spherical body so as to leave the cavi- Having completed the ball with the cavities therein the surfaces are finished and polished in the ordinary manner. It will thus be seen that the ball will be provided with cavities conforming to the shape of the thumb and finger or fingers respectively of the individual from whose thumb and finger or fingers the cast 22 was made. As a consequence a natural and comfortable grip will be provided in the ball.
- the opening 26 is used as a vent and/or chamber where excess ball forming material can accuniulate during the heat and pressure operation, and
- opening 26 positive or auxiliary pressure can be applied, depending on the specific requirements.
- Screw plug 30 is fitted to opening 26, said screw plug 30 being used to close opening 26 when the molding process peculiarities of the ball forming material should demand it.
- new bowling balls may be made having custom fitted grips and where so desired balls already produced may be fitted with custom fitted grips according to the desires of the user.
- custom fitted grips assure accurate handling of the ball and provide comfort for the user by eliminating the fatigue that frequently accompanies the use of a bowling ball having grips of improper span or shape of the finger hole.
- the hereindescribed method of making an individual bowling ball grip which includes, forming a body having a spherical contour conforming to the curvature of a bowling ball, forming at least two cavities in the body to receive the thumb and at least one finger of the individual for whom the grip is to be made, introducing a flowable, shape retaining substance into the cavities, introducing the thumb and at least one finger of the individual into the fiowable, shape retaining substance to form an impression thereof in said substance, removing the thumb and finger or fingers, pouring a low melting point material in the impressions to produce a cast of the thumb and finger or fingers, introducing the cast thus formed into a mold, filling the mold with ball forming material, forming a ball in the mold about the cast, melting the cast to leave cavities in the ball conforming to the size and shape of the thumb and fingers of which the cast .was made and finishing the ball.
Description
July 5, 1955 w. L. STERCZEK METHOD OF MAKING INDIVIDUAL BOWLING BALL GRIPS Filed Feb. 21, 1951 FIG. I.
FIG. 2.
F IG. 4.
A/dflZL WENTOR United States Patent METHOD OF MAKING INDIVIDUAL BOWLING BALL GRIPS This invention relates to a method of making individual bowling ball grips and has for its primary object accurately to produce in a bowling ball, comfortable cavities conforming to the shape of a thumb and at least one finger of the user to insure accuracy in the holding of the ball preparatory to its delivery.
Another object is accurately to reproduce a cast of the hand of an individual in gripping position with relation to a bowling ball, which cast may be utilized in the formation of the ball to insure accuracy of the grip.
The above and other objects may be attained by employing this invention which embodies among its features first making an impression of the hand of an individual in a gripping and prior to releasing position, forming a cast in the impression, supporting the cast in a mold in which a ball is to be formed, forming the bowling ball about the cast and subsequently removing the cast and finishing the ball.
Other features include forming the cast in the impression introducing the cast into a mold having at least a portion of its surface conforming to the configuration of the bowling ball introducing bowling ball forming material into the mold around the cast and subsequently removing the cast and finishing the item so molded.
Still other features include forming a plug about a cast conforming to the thumb and at least one finger of an individual, removing the cast from the plug, finishing the surrface thereof and introducing the plug into a cavity in a bowling ball to produce a sphere having cavities therein conforming to the shape of the thumb and at least one finger of the individual in gripping position.
In the drawings:
Figure l is a side view partly in section of a mold in which the impression is made of the thumb and at least one finger of the individual to use the ball.
Figure 2 is a view similar to Figure 1 showing the thumb and finger removed and the cast in the process of being made,
Figure 3 is a view illustrating the cast in place in a mold in which a bowling ball is to be formed.
Figure 4 is a side view of the mold illustrating the cast in dotted lines.
Referring to the drawings in detail a form 15 preferably of hemi-spherical shape conforming generally to the size and contour of one half of the bowling ball is provided with spaced cavities 16 and 17 into which a shape retaining substance 18 such as liquid rubber, plaster or plastic is introduced. This substance has the property of setting slowly upon exposure to air and after introducing the substance into the cavities 16 and 17 the thumb and at least one finger of the individual for whom the bowling ball is to be made is introduced into the cavities so as to cause an impressionto be formed in the shape retaining substance 18 so that the contour of the cavities formed in the substance 18 will conform to the size and shape of the finger and thumb with proper provision made for clearance which is needed when ball is thrown. Flexible, snug fitting tubing of previously determined thickness ties previously referred to.
Patented July 5, 1955 ice can be slipped over the finger and thumb when melting the impression for cast 22. Use of said tubing will make possible that the cavities 28 and 29 will have clearance which is necessary for repetitious, comfortable and accurate delivery of ball. 1
It is to be understood of course that while ,in themajority of instances bowling balls are formed with only .two cavities 16 and 17 a third may be employed for the:introduction of another finger and an impression formed thereof as above described. After setting of the plastic substance 18 a font 19 is mounted upon the form 15 as shown in Figure 2 and a low melting point alloy 20 is introduced in liquid form into said font from a suitable container such as a crucible 21.
Upon the setting of the alloy 20 and its conversion from a liquid to a solid state the cast 22 made therefrom is removed from the form 15 and the impressions 18 and is introduced into a mold half 23 in which one portion of the bowling ball is to be formed. The other mold half 24 is then placed in position on the mold half 23 and ball forming material 25 is loaded into the mold so as to surround the projections 27 on the cast 22 as illustrated in Figure 3 and thus form the cavities. Having introduced the material 25 into the mold parts 23 and 24, and around the projections 27 of the cast 22, the ball forming mate'- rial is subjected to heat and pressure, between the mold halves. Said heat and pressure forms a spherical body conforming to the size and shape of a bowling ball and when the material is set and cured, the mold halves 23 and 24 are separated and the ball thus molded together with the cast 22 is removed from the mold.
In as much as the cast 22 is made from a low melting point alloy, it is obvious that the cast 22 may be readily melted from the spherical body so as to leave the cavi- Having completed the ball with the cavities therein the surfaces are finished and polished in the ordinary manner. It will thus be seen that the ball will be provided with cavities conforming to the shape of the thumb and finger or fingers respectively of the individual from whose thumb and finger or fingers the cast 22 was made. As a consequence a natural and comfortable grip will be provided in the ball.
In the mold, the opening 26 is used as a vent and/or chamber where excess ball forming material can accuniulate during the heat and pressure operation, and
through which opening 26 positive or auxiliary pressure can be applied, depending on the specific requirements.
of the chosen ball forming material which may be used. Screw plug 30 is fitted to opening 26, said screw plug 30 being used to close opening 26 when the molding process peculiarities of the ball forming material should demand it.
From the foregoing it will be obvious that new bowling balls may be made having custom fitted grips and where so desired balls already produced may be fitted with custom fitted grips according to the desires of the user. Such custom fitted grips assure accurate handling of the ball and provide comfort for the user by eliminating the fatigue that frequently accompanies the use of a bowling ball having grips of improper span or shape of the finger hole.
It is to be understood that minor changes may be made in carrying out the process and that the invention is not limited to the use of rubber, plaster or plastic but that any suitable shape retaining substances and low melting material may be substituted should occasion demand.
What I claim is:
The hereindescribed method of making an individual bowling ball grip which includes, forming a body having a spherical contour conforming to the curvature of a bowling ball, forming at least two cavities in the body to receive the thumb and at least one finger of the individual for whom the grip is to be made, introducing a flowable, shape retaining substance into the cavities, introducing the thumb and at least one finger of the individual into the fiowable, shape retaining substance to form an impression thereof in said substance, removing the thumb and finger or fingers, pouring a low melting point material in the impressions to produce a cast of the thumb and finger or fingers, introducing the cast thus formed into a mold, filling the mold with ball forming material, forming a ball in the mold about the cast, melting the cast to leave cavities in the ball conforming to the size and shape of the thumb and fingers of which the cast .was made and finishing the ball.
UNITED STATES PATENTS Davis Oct. 8, Richards Feb. 10, Walter Jan. 10, Errington et al. Sept. 23, Hess s July 13, Feinbloom Sept. 6, Raiche- July 7, Lennington Feb. 15,
' Kramer Sept. 20,
Publications (1)
Publication Number | Publication Date |
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US2712160A true US2712160A (en) | 1955-07-05 |
Family
ID=3441151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US2712160D Expired - Lifetime US2712160A (en) | Method of making individual bowling |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2856679A (en) * | 1956-07-26 | 1958-10-21 | Jr William E Burkhardt | Method of relocating the finger holes in bowling balls |
US3143901A (en) * | 1958-07-18 | 1964-08-11 | Charles E Bawtinheimer | Method of forming workpieces |
US3214167A (en) * | 1962-10-08 | 1965-10-26 | Kalman L Pell | Finger-tip gripping aid for bowlers |
US3247841A (en) * | 1961-05-29 | 1966-04-26 | Galen B Cook | Diagnostic method |
US3316588A (en) * | 1964-11-09 | 1967-05-02 | Don S Sports Systems Inc | Pliable molding tool |
US3386176A (en) * | 1965-12-27 | 1968-06-04 | Russell P. Lotta | Custom fitting of bowling balls |
US3774909A (en) * | 1971-06-03 | 1973-11-27 | C Linden | Bowling ball |
US4030414A (en) * | 1975-05-16 | 1977-06-21 | Mcguire James T | Wall decorating paint applying device |
US4260574A (en) * | 1979-04-09 | 1981-04-07 | Macomson James B | Method of making an ornamental replica of a hand |
US4381863A (en) * | 1981-07-13 | 1983-05-03 | Master Industries, Inc. | Finger hole insert for bowling balls |
US5076438A (en) * | 1990-04-11 | 1991-12-31 | Aronson Michael D | Serving tray with an underside molded to the contour of the hand of the server |
US5391117A (en) * | 1993-01-08 | 1995-02-21 | Miller; John R. | Bowling ball |
US5657972A (en) * | 1994-12-22 | 1997-08-19 | Isi Norgren, Inc. | Clamp with inflatable bladder |
US5769730A (en) * | 1994-12-09 | 1998-06-23 | Haskell; Roger | Bowling ball fingertip positioner |
US5813918A (en) * | 1996-11-04 | 1998-09-29 | X-Act Duplicator, Inc. | Method of exactly duplicating in a new bowling ball, the thumb-hole of a reference bowling ball |
US6464924B1 (en) * | 2000-04-05 | 2002-10-15 | W. Keith Thornton | Method of forming a custom mask using an impression mask |
US7243650B2 (en) | 2004-07-12 | 2007-07-17 | Thornton W Keith | Custom fitted mask configured for coupling to an external gas supply system and method of forming same |
US20080032256A1 (en) * | 2006-08-07 | 2008-02-07 | Thornton W Keith | Device and Method for Forming a Custom Oral Appliance |
US20090223525A1 (en) * | 2006-04-06 | 2009-09-10 | Thornton W Keith | Oral Appliance for Treating a Breathing Condition |
US7963284B2 (en) | 2002-10-24 | 2011-06-21 | Airway Technologies, Llc | Custom fitted mask and method of forming same |
US8020276B2 (en) | 2006-11-30 | 2011-09-20 | Airway Technologies, Llc | System and method for custom-orienting a medical mask to an oral appliance |
US8236216B2 (en) | 2006-07-06 | 2012-08-07 | Airway Technologies, Llc | System and method for forming a custom medical mask using an orientation device |
US8316858B2 (en) | 2006-04-06 | 2012-11-27 | Airway Technologies, Llc | System for coupling an oral appliance to a medical mask |
US8607796B2 (en) | 2009-02-27 | 2013-12-17 | Airway Technologies, Llc | Apparatus and method for coupling an oral appliance to a gas delivery device |
US8874251B2 (en) | 2006-07-06 | 2014-10-28 | Airway Technologies, Llc | System and method for forming a custom medical mask from a three-dimensional electronic model |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US412479A (en) * | 1889-10-08 | Charles a | ||
US720482A (en) * | 1902-06-04 | 1903-02-10 | Kempshall Mfg Co | Process of making shells for playing-balls. |
US779979A (en) * | 1904-02-29 | 1905-01-10 | John Walter | Manufacturing decorative articles from plastic materials. |
US1776622A (en) * | 1928-04-10 | 1930-09-23 | Errington Tom | Dummy sweetmeat |
US2086939A (en) * | 1936-02-19 | 1937-07-13 | Henry K Hess | Method of repairing impaired bowling pins and article resulting therefrom |
US2129304A (en) * | 1936-04-06 | 1938-09-06 | Feinbloom William | Contact lens |
US2288840A (en) * | 1940-07-26 | 1942-07-07 | Devoe Rubber Company | Method of making rubber gloves |
US2341999A (en) * | 1939-11-28 | 1944-02-15 | Joseph B Lennington | Method of molding |
US2482190A (en) * | 1945-02-19 | 1949-09-20 | Eugene J Reardon | Finger hole insert for bowling balls |
-
0
- US US2712160D patent/US2712160A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US412479A (en) * | 1889-10-08 | Charles a | ||
US720482A (en) * | 1902-06-04 | 1903-02-10 | Kempshall Mfg Co | Process of making shells for playing-balls. |
US779979A (en) * | 1904-02-29 | 1905-01-10 | John Walter | Manufacturing decorative articles from plastic materials. |
US1776622A (en) * | 1928-04-10 | 1930-09-23 | Errington Tom | Dummy sweetmeat |
US2086939A (en) * | 1936-02-19 | 1937-07-13 | Henry K Hess | Method of repairing impaired bowling pins and article resulting therefrom |
US2129304A (en) * | 1936-04-06 | 1938-09-06 | Feinbloom William | Contact lens |
US2341999A (en) * | 1939-11-28 | 1944-02-15 | Joseph B Lennington | Method of molding |
US2288840A (en) * | 1940-07-26 | 1942-07-07 | Devoe Rubber Company | Method of making rubber gloves |
US2482190A (en) * | 1945-02-19 | 1949-09-20 | Eugene J Reardon | Finger hole insert for bowling balls |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2856679A (en) * | 1956-07-26 | 1958-10-21 | Jr William E Burkhardt | Method of relocating the finger holes in bowling balls |
US3143901A (en) * | 1958-07-18 | 1964-08-11 | Charles E Bawtinheimer | Method of forming workpieces |
US3247841A (en) * | 1961-05-29 | 1966-04-26 | Galen B Cook | Diagnostic method |
US3214167A (en) * | 1962-10-08 | 1965-10-26 | Kalman L Pell | Finger-tip gripping aid for bowlers |
US3316588A (en) * | 1964-11-09 | 1967-05-02 | Don S Sports Systems Inc | Pliable molding tool |
US3386176A (en) * | 1965-12-27 | 1968-06-04 | Russell P. Lotta | Custom fitting of bowling balls |
US3774909A (en) * | 1971-06-03 | 1973-11-27 | C Linden | Bowling ball |
US4030414A (en) * | 1975-05-16 | 1977-06-21 | Mcguire James T | Wall decorating paint applying device |
US4260574A (en) * | 1979-04-09 | 1981-04-07 | Macomson James B | Method of making an ornamental replica of a hand |
US4381863A (en) * | 1981-07-13 | 1983-05-03 | Master Industries, Inc. | Finger hole insert for bowling balls |
US5076438A (en) * | 1990-04-11 | 1991-12-31 | Aronson Michael D | Serving tray with an underside molded to the contour of the hand of the server |
US5391117A (en) * | 1993-01-08 | 1995-02-21 | Miller; John R. | Bowling ball |
US5769730A (en) * | 1994-12-09 | 1998-06-23 | Haskell; Roger | Bowling ball fingertip positioner |
US5657972A (en) * | 1994-12-22 | 1997-08-19 | Isi Norgren, Inc. | Clamp with inflatable bladder |
US5813918A (en) * | 1996-11-04 | 1998-09-29 | X-Act Duplicator, Inc. | Method of exactly duplicating in a new bowling ball, the thumb-hole of a reference bowling ball |
US6464924B1 (en) * | 2000-04-05 | 2002-10-15 | W. Keith Thornton | Method of forming a custom mask using an impression mask |
US7963284B2 (en) | 2002-10-24 | 2011-06-21 | Airway Technologies, Llc | Custom fitted mask and method of forming same |
US7243650B2 (en) | 2004-07-12 | 2007-07-17 | Thornton W Keith | Custom fitted mask configured for coupling to an external gas supply system and method of forming same |
US8316858B2 (en) | 2006-04-06 | 2012-11-27 | Airway Technologies, Llc | System for coupling an oral appliance to a medical mask |
US20090223525A1 (en) * | 2006-04-06 | 2009-09-10 | Thornton W Keith | Oral Appliance for Treating a Breathing Condition |
US7721741B2 (en) | 2006-04-06 | 2010-05-25 | Thornton W Keith | Oral appliance for treating a breathing condition |
US8236216B2 (en) | 2006-07-06 | 2012-08-07 | Airway Technologies, Llc | System and method for forming a custom medical mask using an orientation device |
US8874251B2 (en) | 2006-07-06 | 2014-10-28 | Airway Technologies, Llc | System and method for forming a custom medical mask from a three-dimensional electronic model |
US7677889B2 (en) | 2006-08-07 | 2010-03-16 | Thornton W Keith | Device and method for forming a custom oral appliance |
US20080032256A1 (en) * | 2006-08-07 | 2008-02-07 | Thornton W Keith | Device and Method for Forming a Custom Oral Appliance |
US8020276B2 (en) | 2006-11-30 | 2011-09-20 | Airway Technologies, Llc | System and method for custom-orienting a medical mask to an oral appliance |
US8607796B2 (en) | 2009-02-27 | 2013-12-17 | Airway Technologies, Llc | Apparatus and method for coupling an oral appliance to a gas delivery device |
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