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MY108064A - Key unlocking and retaining method and apparatus - Google Patents

Key unlocking and retaining method and apparatus

Info

Publication number
MY108064A
MY108064A MYPI91000919A MYPI19910919A MY108064A MY 108064 A MY108064 A MY 108064A MY PI91000919 A MYPI91000919 A MY PI91000919A MY PI19910919 A MYPI19910919 A MY PI19910919A MY 108064 A MY108064 A MY 108064A
Authority
MY
Malaysia
Prior art keywords
key
auxiliary
lock
pin
driver pin
Prior art date
Application number
MYPI91000919A
Inventor
F Hennessy Thomas
Original Assignee
Kaba High Security Locks Corp
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
Priority claimed from US07/535,334 external-priority patent/US5016455A/en
Application filed by Kaba High Security Locks Corp filed Critical Kaba High Security Locks Corp
Publication of MY108064A publication Critical patent/MY108064A/en

Links

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  • Lock And Its Accessories (AREA)

Abstract

A CYLINDER LOCK SYSTEM EMPLOYING A KEY HAVING A PROJECTION EXTENDING FROM EACH OPPOSING PARALLEL EDGE OF THE KEY BLADE (47), THE PROJECTIONS (48) (50) RESPECTIVELY OPERATING AN AUXILIARY PIN TUMBLER STACK AND COOPERATING WITH THE GROOVE (44) IN THE LOCK SHELL (12) TO RETAIN THE KEY IN THE LOCK AFTER PLUG ROTATION FROM THE KEY INSERTION POSITION. THE KEY RETAINING PROJECTION ALSO COOPERATES WITH THE DRIVER PIN (34) OF THE AUXILIARY PIN TUMBLER STACK TO PREVENT KEY TRAPPING, I.E., THE PRESENCE AND SIZE OF THE RETAINING PROJECTIONS (48) (50) KEEPS THE AUXILIARY DRIVER PIN (34) FROM ENGAGING THE KEYWAY (20). THE COOPERATION BETWEEN THE KEY RETAINING PROJECTION AND THE AUXILIARY DRIVER PIN (34) IS PERMITTED BY PROVIDING THE LOCK WITH TWO SHEAR LINES, LOCATED ON DIFFERENT DIAMETERS. WHICH ARE SIMULTANEOUSLY OPERABLE BY A SINGLE KEY. (FIG.1)
MYPI91000919A 1990-06-08 1991-05-27 Key unlocking and retaining method and apparatus MY108064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/535,334 US5016455A (en) 1990-06-08 1990-06-08 Key unlocking and retaining method and apparatus

Publications (1)

Publication Number Publication Date
MY108064A true MY108064A (en) 1996-08-15

Family

ID=79554026

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI91000919A MY108064A (en) 1990-06-08 1991-05-27 Key unlocking and retaining method and apparatus

Country Status (1)

Country Link
MY (1) MY108064A (en)

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