Title: Door-closure apparatus

Abstract: A pneumatic door-closure apparatus comprising an elongated cylindrical housing in which an integrally formed rod and piston are slidably biased, the rod having a free end that extends outwardly therefrom and including a plurality of transversely disposed grooves to receive an adjustable-retainer clamp, so as to regulate the inward longitudinal movement of the piston. The rear closed end of the housing is provided with an air-valve regulator to control the speed of the inward movement of the piston, the piston including an air-flow control to allow air to pass freely from the spring-biased side of the piston to the compressed-air side, when the rod is extended outwardly from the housing. A two-way-mounting bracket is further provided and arranged to be attached at the rear closed end of the cylindrical housing for right or left hand mounting of the apparatus.

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Other info:

Inventors: Watts, John R. (8 Palmer St., South Melbourne, AU)

Application Number: 06/208676
Filing Date: 1980-11-20
Publication_date: 1983-05-10
Assignee: Watts, John R.

Primary Class(es): 16/66 16/84, 16/72
Other Classes: E05F3/02; E05F3/00; E05F3/10
US Patent Ref:

3090988	May, 1963	Truhon	16/66	Door closing door checks
3284841	November, 1966	Patriquin	16/66	Door closer
3781943	January, 1974	Cain	16/66	HYDRAULIC DOOR CLOSER

Other Refs:
Primary Examiner: Bell, Paul A.
Assistant Examiner:
Attorney: Lojacono, Francis X.

Claims:

I clai