Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Checks and closers – Liquid
Reexamination Certificate
2006-02-28
2006-02-28
Barrett, Susan L. (Department: 3676)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Checks and closers
Liquid
C016S055000, C016S056000, C016S284000, C016S058000
Reexamination Certificate
active
07003847
ABSTRACT:
A door closer comprising a housing, a member for driving engagement with a door, the member being rotatable relative to the housing in a door opening direction and in a door closing direction, a spring apparatus within the housing providing a resilient bias, the resilient bias being increased by rotation of the member in the door opening direction and a check device for controlling rotation of the member in the door closing direction and hence closure of the door under the action of the spring apparatus, the door closer having a back check comprising a piston member movable in a cylinder from an initial position against resistance of a fluid medium by rotation of the rotatable member in the opening direction.
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Barrett Susan L.
Jebron Limited
Webb Ziesenheim & Logsdon Orkin & Hanson, P.C.
Williams Mark
LandOfFree
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