Locks – Portable – Padlocks
Patent
1991-10-04
1992-12-29
Gall, Lloyd A.
Locks
Portable
Padlocks
70 51, 70371, 70389, 70379R, E05B 6722, E05B 1100
Patent
active
051741369
ABSTRACT:
A padlock with removable cylinder mechanism offers the user a choice of two distinct manners of operation or "functions"--a Key Retaining function and a Non-Key Retaining function. This dual function capability in a single unit is achieved by a rotator bolt bored to allow placement of a pattern of pins. A series of pins, which when installed in the rotator bolt in a specified pattern, causes the function selection to be accomplished. A re-keyable padlock which accepts widely available, standard dimensioned, generic key operated lock cylinders allowing the keying of this padlock to be adapted to the wide range of keying systems used in locks found in residential, commercial and other uses as required for security and convenience. The use of standard dimensioned cylinders in the padlock is accomplished by a cylinder retainer, tailpiece stop and rotator bolt which adapts the generic cylinder to padlock use. The cylinder retainer, which retains the lock cylinder in the padlock body, is in turn held in the body by a threaded screw which is accessible through the short shackle leg opening in the body only when the shackle is in the unlocked condition and swung clear of its body opening. Upon removal of the threaded screw, the cylinder retainer and lock cylinder are removed from the body and the cylinder can be serviced or replaced.
REFERENCES:
patent: 1636381 (1927-07-01), Megie et al.
patent: 2213262 (1940-09-01), Segal
patent: 2433114 (1947-12-01), Gray
patent: 2460615 (1949-02-01), Andrew
patent: 2557028 (1951-06-01), Deutsch
patent: 3143872 (1964-08-01), Check
patent: 3172279 (1965-03-01), Patriquin
patent: 3404549 (1968-10-01), Best
patent: 3728879 (1973-04-01), Best
patent: 3788111 (1974-01-01), Parlier
patent: 3793856 (1974-02-01), Lippisch
patent: 3882699 (1975-05-01), Flack et al.
patent: 4068510 (1978-01-01), Neary
patent: 4112715 (1978-09-01), Uyeda
patent: 4138868 (1979-02-01), Richards
patent: 4290280 (1981-09-01), Yun
patent: 4419873 (1983-12-01), Sopko
patent: 4576026 (1986-03-01), Kurt et al.
patent: 4663953 (1987-05-01), Fish et al.
patent: 4763496 (1988-08-01), Evans et al.
patent: 4776187 (1988-10-01), Evans et al.
patent: 4793166 (1988-12-01), Marks
patent: 4998422 (1991-03-01), Borgmann et al.
1987 Article from Locksmith Ledger Magazine, pp. 46-49.
Two sheets of drawings (undated) showing features of a padlock that has been on sale by Applicant.
Best Lock Corporation catlaog dated 1989, p. 4.19
Boucher D.
Gall Lloyd A.
Roethel John Edward
LandOfFree
Dual function padlock with removable cylinder mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual function padlock with removable cylinder mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual function padlock with removable cylinder mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1879950