Door closer and holder

Details Door closer and holder Door closer and holder

1987-06-15

1988-12-27

Godici, Nicholas P.

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

Checks and closers

Liquid

16 62, 16 52, E05F 322

Patent

active

047930233

ABSTRACT:
A door closer and holder comprises a cylinder shell having a piston sealingly reciprocable therein. A spring biases the piston toward one end of the shell, and the piston is connected through the ususal apparatus to the door. At the one end the operating rod of a shuttle valve extends into the shell and is engaged by the piston as it approaches the end. The shuttle valve selectively directs the return fluid flow through sweep- and latch-control valves. The assembly also includes a solenoid-operated "bullet" which closes off the return flow to hold the door open. The angle of the openness at which the door is held may be selected by setting a cam on the holder drive pinion which engages a switch to activate the solenoid.

REFERENCES:
patent: 4050114 (1977-09-01), Zunkel
patent: 4267619 (1981-05-01), Suska
patent: 4349939 (1982-09-01), Tillman
patent: 4378612 (1983-04-01), Beers
patent: 4414703 (1983-11-01), Schnarr et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-859789