Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closers
Reexamination Certificate
1998-11-16
2001-03-27
Mah, Chuck Y. (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Closers
C016S049000, C016S051000, C016S066000, C016SDIG004, C248S200000
Reexamination Certificate
active
06205615
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates generally to door closers and more particularly to mounting brackets for door closers.
Current state of the art door closers in the commercial market attach to the door or door frame using very similar methods. They all use fasteners to directly attach the door closer to the door or door frame. Current door closers typically stake the regulation screws into the door closer such that during speed adjustment the user can not remove the speed regulating screws. The staking requires an additional manufacturing process and, in the event a regulation screw needs to be removed, requires the screw holes to be reamed out in order to remove the regulation screws.
One problem with current door closers is that after the mounting holes are drilled into the door, the door closer must be held in place while the fasteners are inserted and tightened. A door closer can weigh as much as 8 to 10 pounds. This heavy weight must be supported while the fasteners are being tightened. This can make the installation difficult.
Another problem with current door closers, is that the typical use of a rectangular pattern for the mounting holes can lead to mounting the door closer upside down. Therefore requiring the door closer to be removed and reinstalled in the correct orientation.
The foregoing illustrates limitations known to exist in present door closers. Thus, it is apparent that it would be advantageous to provide an alternative directed to overcoming one or more of the limitations set forth above. Accordingly, a suitable alternative is provided including features more fully disclosed hereinafter.
SUMMARY OF THE INVENTION
In one aspect of the present invention, this is accomplished by providing a door closer having a lip at a first end thereof and a screw passageway at a second end thereof; and a mounting bracket adapted to be attached to one of a door surface or a door frame surface, the mounting bracket having a door closer engaging retaining member at a first end thereof, the door closer engaging retaining member engaging the door closer lip.
The foregoing and other aspects will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawing figures.
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patent: 4086681 (1978-05-01), Nakanishi
patent: 4122647 (1978-10-01), Kovar
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patent: 4424607 (1984-01-01), Langenhorst
patent: 4831687 (1989-05-01), Lin et al.
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patent: 5357725 (1994-10-01), Ferry
Current Andy
Jensen James E.
Mah Chuck Y.
Minns Michael H.
Reynolds, II Thomas S.
Schlage Lock Company
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