Door closer with a compressible braking sleeve
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United States of America Patent
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-
Dec 11, 1984
Grant Date -
N/A
app pub date -
Feb 12, 1982
filing date -
Feb 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door closer includes a spring-loaded piston forming part of a conventional pneumatic dashpot, which retards the speed of a door during closing, and an elastomeric sleeve which is longitudinally compressed during opening of the door to retard the speed of the door during opening and to apply substantial resistance to further opening movement as the door approaches its fully open position. Closing speed of the door is also initially retarded by the compressed sleeve.
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Family
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