Door closer assist linkage

Details Door closer assist linkage Door closer assist linkage

1982-09-23

1983-12-13

Silverberg, Fred

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Spring and lever

16 76, 16 80, E05F 112

Patent

active

044197870

ABSTRACT:
A control linkage for use with a door closer, wherein the linkage is provided with a spring which resiliently biases against relative rotation of a pair of arms as the arms approach a door-open limit position, and which aids the door closer in moving the door from the door-open limit position.

REFERENCES:
patent: 184166 (1876-11-01), Myers
patent: 504826 (1893-09-01), Dudley
patent: 1425900 (1922-08-01), Rundell
patent: 1836013 (1931-12-01), Carlson
patent: 2506284 (1950-05-01), Tharp
patent: 2634454 (1953-04-01), Altenburger
patent: 2960718 (1960-11-01), Lasier
patent: 3082471 (1963-03-01), Rolph
patent: 3259936 (1966-07-01), Sheridan
patent: 4019220 (1977-04-01), Lieberman
patent: 4190926 (1980-03-01), Cronin

Affiliated with

Also associated with

Rating

Door closer assist linkage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Door closer assist linkage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door closer assist linkage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-799119