Double cylinder deadbolt

Details Double cylinder deadbolt Double cylinder deadbolt

1993-03-01

1994-10-04

Gall, Lloyd A.

Locks

Operating mechanism

Key

70381, 70452, 70DIG57, 70DIG60, E05B 910

Patent

active

053515137

ABSTRACT:
A double cylinder tubular deadbolt having the inside cylinder provided with a removeable cap or cover which covers the exposed screws in the flanged face of the inside cylinder. The removable cover fits over and covers the face portion of the inside cylinder. The cover is retained in place by an escutcheon which fits over the flanged face with the cover thereon.

REFERENCES:
patent: 165644 (1875-07-01), Winn
patent: 409246 (1889-08-01), Severance
patent: 971333 (1910-09-01), Weed
patent: 1461756 (1923-07-01), Croning
patent: 1479658 (1924-01-01), Freysinger
patent: 3212308 (1965-10-01), Eads
patent: 3550411 (1970-12-01), Neary et al.
patent: 3869890 (1975-03-01), Neary
patent: 4073172 (1978-02-01), Schlage
patent: 4548061 (1985-10-01), Nilsson
patent: 4593546 (1986-06-01), Allen

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