Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including adjustment for changing relative orientation of...
Reexamination Certificate
1999-06-14
2001-04-17
Sandy, Robert J. (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including adjustment for changing relative orientation of...
C016S245000, C016S388000
Reexamination Certificate
active
06216316
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to hinges used on doors (commonly referred to as butt hinges or leaf hinges) and more particularly relates to an improvement in such hinges which facilitate its installation, adjustment and operation.
2. Description of the Prior Art
Prior art hinges for use on doors generally present a leaf for screw attachment to a door and a leaf for screw attachment to a door jam. The two hinge leaves are joined by knuckles having a pin inserted therethrough. This prior art design has over the years proved to be difficult to align during installation and presents no means for adjustment after it is installed. Moreover, when the pin is removed, the door can be removed, and in some circumstances this presents a security problem.
SUMMARY OF THE INVENTION
Accordingly, it is an objective of this invention to present a hinge design which is easier to install and which includes an adjustment device for correcting the door alignment following installation. It is a further objective to present a security feature for preventing removal of a closed door when the hinge pin is removed; and alternatively, a secure hinge design is presented which functions without a hinge pin.
These and other objectives are accomplished by a hinge design which includes: (1) an alignment edge along each leaf of the hinge for aligning the hinge during installation, (2) an improved pin design having a taper and a bulbous end for easier installation, (3) cam devices in the form of threaded inserts positioned in the leaves of the hinge for affecting the adjustment of the hinge to correct the hang of the door, and (4) a security tab for interlocking the leaves of the hinge to prevent removal of the door when the pin is pulled from the knuckles. An alternative a variation of the hinge design is formed with a thinned flexible plastic region between the leaves to function in place of the knuckle/pin combination.
REFERENCES:
patent: 30970 (1860-12-01), Johnson
patent: 3390419 (1968-07-01), Foltz
patent: 3441975 (1969-05-01), Shepherd
patent: 3754300 (1973-08-01), Shepherd
patent: 4057873 (1977-11-01), Bursani
patent: 4135273 (1979-01-01), Holmes
patent: 4719666 (1988-01-01), Rios et al.
patent: 4878266 (1989-11-01), Cubides
patent: 5555605 (1996-09-01), Mosher
patent: 5755011 (1998-05-01), Green et al.
Sandy Robert J.
White Douglas B.
LandOfFree
Hinge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hinge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hinge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2475240