Door lock device

Details Door lock device Door lock device

1990-12-04

1992-06-30

Nicholson, Eric K.

Pipe joints or couplings

Packed

Externally with clamp

285201, 277207R, E05C 326

Patent

active

051257025

ABSTRACT:
A housing for a door lock device has an irregular outer perimeter with inside and outside curved corners. A sub housing for the door lock device has a similarly configured outer perimeter coupled to the perimeter of the housing. An O-ring is inserted in a groove in the housing perimeter for sealing the perimeters of the housing and sub-housing. The O-ring has a plurality of spaced gripping portions that have a width greater than the width of the groove before insertion therein for keeping the O-ring from springing out of the groove during assembly.

REFERENCES:
patent: 1412299 (1922-04-01), Thumm
patent: 2774621 (1956-12-01), Kilbourne, Jr.
patent: 2898000 (1959-08-01), Hanny
patent: 2910209 (1959-10-01), Nelson
patent: 3052478 (1962-09-01), Horvereid
patent: 3124366 (1964-03-01), Hillman
patent: 4135377 (1977-01-01), Kleefeldt
patent: 4502718 (1985-03-01), Sasaki et al.
patent: 4520914 (1985-06-01), Kagiyama et al.
patent: 4735447 (1988-04-01), Kleefeldt
patent: 4779912 (1988-10-01), Ikeda et al.
patent: 4904006 (1990-02-01), Hayakawa

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