Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Sash balances – Spring
Patent
1975-10-09
1976-08-31
Kundrat, Andrew V.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Sash balances
Spring
16176, E05D 512
Patent
active
039770443
ABSTRACT:
A hinge plate has an arcuate knuckle which inter-fits with the knuckle joint of a door jamb, the knuckles being secured to each other by a pair of pintles in the hinge knuckle which are urged in opposite directions by a spring and held in movable relation partly within the hinge knuckle by press fit bushings.
REFERENCES:
patent: 2534998 (1950-12-01), Steinbach
patent: 2903735 (1959-09-01), Schneider
patent: 3015126 (1962-01-01), Ahlgren
patent: 3078502 (1963-02-01), Nelson
patent: 3216053 (1965-11-01), Felix
patent: 3908227 (1975-09-01), Cain
Harpman Webster B.
Kundrat Andrew V.
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