CA977988A - Cylinder lock - Google Patents

Cylinder lock

Info

Publication number
CA977988A
CA977988A CA153,649A CA153649A CA977988A CA 977988 A CA977988 A CA 977988A CA 153649 A CA153649 A CA 153649A CA 977988 A CA977988 A CA 977988A
Authority
CA
Canada
Prior art keywords
cylinder lock
lock
cylinder
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
Application number
CA153,649A
Other versions
CA153649S (en
Inventor
David Doyle
Murray M. Shtulman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA977988A publication Critical patent/CA977988A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/16—Use of special materials for parts of locks
    • E05B15/1614—Use of special materials for parts of locks of hard materials, to prevent drilling
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/0047—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key with substantially circular or star-shape cross-section
CA153,649A 1971-11-18 1972-10-11 Cylinder lock Expired CA977988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19998471A 1971-11-18 1971-11-18

Publications (1)

Publication Number Publication Date
CA977988A true CA977988A (en) 1975-11-18

Family

ID=22739836

Family Applications (1)

Application Number Title Priority Date Filing Date
CA153,649A Expired CA977988A (en) 1971-11-18 1972-10-11 Cylinder lock

Country Status (2)

Country Link
CA (1) CA977988A (en)
DE (1) DE2250605A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987940A (en) * 1996-10-01 1999-11-23 Chang; Kuo-Chou U-shaped lock

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL83071A (en) * 1987-07-03 1988-08-31 Mul T Lock Ltd Pin-tumbler lock
DE4215810C2 (en) * 1992-05-15 1997-04-17 Gernot Richter Cylinder lock
AT2426U1 (en) * 1997-06-27 1998-10-27 Kaba Gege Gmbh LOCKING CYLINDER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987940A (en) * 1996-10-01 1999-11-23 Chang; Kuo-Chou U-shaped lock

Also Published As

Publication number Publication date
DE2250605A1 (en) 1973-05-24

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