Metal working – Method of mechanical manufacture – Converting
Patent
1989-07-19
1991-08-06
Gorski, Joseph M.
Metal working
Method of mechanical manufacture
Converting
2940203, 2940208, 70224, E05B 1500
Patent
active
050365754
ABSTRACT:
A method of converting a conventional lock set from one manufacturer's lock cylinder to another's is provided. The method includes provision of a universal doorknob or handle mountable, generally by means of adaptors, on any of a variety of manufactures of hardware systems. The universal knob includes means therein for mounting of a selected manufacture or design of lock cylinder. According to the method a tail piece member is provided, to translate motion from the lock cylinder to a drive mechanism of the hardware system being converted. Generally, according to the method each different design of lock cylinder will have a different universal knob design associated therewith. Further, each selected lock cylinder design will have associated therewith a set of tail piece members, one for each manufacture or design of hardware systems. As a result of the above, almost any type of hardware system can be readily converted to a system utilizing a universal knob and a selected lock cylinder.
REFERENCES:
patent: 2007350 (1935-07-01), Schlage
patent: 2079583 (1937-05-01), Brauning
patent: 2683367 (1954-07-01), Hillgren
patent: 3354676 (1967-11-01), Wilson
patent: 4435967 (1984-03-01), Best et al.
patent: 4444034 (1984-04-01), Best et al.
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Russwin Brochure entitled "No. 640 Entrance and Office Lock and No. 3640 Fire Door Lock".
E. L. Reinhardt Co. Brochure entitled "Arrow 28".
Best Lock Corporation brochures entitled "5K and 57K Series", 77K Cylindrical Lockset Specifications, 8-K-C4 Function, 8-K-AB4 Function, Cylindrical Locks-Heavy Duty.
Corbin Brochure entitled "No. 351 Entrance and Office Lock".
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Russwin Brochure entitled "`Forum` Cylindrical Locksets".
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Schlage brochures.
Schlage brochure entitled "D Series Locks Heavy Duty Line-Technical Manual".
Yale brochures.
Campion Neil P.
Foty Michael J.
Novak Richard P.
Gorski Joseph M.
Progressive Security Products, Inc.
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