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Class Information
Number: 16/70
Name: Miscellaneous hardware > Checks and closers > Pneumatic > Spring and lever
Description: Devices in which the closing devices include springs and lever elements.

Patents under this class:

Patent Number Title Of Patent Date Issued
8661616 Door closer with push button hold open mechanism Mar. 4, 2014
8584316 Hinge for furniture equipped with a rotating deceleration device Nov. 19, 2013
6615449 Releasable locking assembly for a door control cylinder Sep. 9, 2003
6557300 Propping support for a chest May. 6, 2003
6202253 Storm door cylinder lock Mar. 20, 2001
5749122 Interior door closer and method May. 12, 1998
5083342 Door closure delay device Jan. 28, 1992
4991255 Pneumatic door-closer usable for left-hinged and right-hinged doors Feb. 12, 1991
4639969 Door closer mechanism Feb. 3, 1987
4486917 Door closer with a compressible braking sleeve Dec. 11, 1984
4483044 Pneumatic door closer having resilient braking sleeve and cooperating piston rod incremental braking enlargements Nov. 20, 1984
4430770 Door operating mechanism Feb. 14, 1984
4357731 Door closer with hold open feature Nov. 9, 1982
4190926 Door guard Mar. 4, 1980
3934306 Door closure device Jan. 27, 1976

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