Closure fasteners – Seals – Encasing
Reexamination Certificate
1998-08-24
2001-10-30
Estremsky, Gary (Department: 3627)
Closure fasteners
Seals
Encasing
C411S432000, C070S163000
Reexamination Certificate
active
06308997
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to an add-on type of tamper-resistant lock structure for a cover and to a method of establishing a tamper-resistant locking connection between a cover and a device on which it is mounted.
By way of background, there are numerous boxes and other devices in existence which have covers which are movable relative to the remainder of the device. In the past various types of locking devices were used in conjunction with such devices.
BRIEF SUMMARY OF THE INVENTION
It is one object of the present invention to provide a tamper-resistant lock structure which can be added onto a device which is modified in a simple and expedient manner.
Another object of the present invention is to provide a method of establishing a tamper-resistant locking connection between a cover and another part of the device. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a tamper-resistant lock structure comprising a shroud, a cavity in said shroud, an end wall in said shroud, a bore in said end wall, a bolt, a shank on said bolt extending through said bore, a head on said bolt located in said cavity, a liner in said cavity between said head and said shroud, and a key-receiving configuration on said head.
The present invention also relates to a tamper-resistant lock structure comprising a nut for affixation to a device, a shroud, an end wall on said shroud, a bore in said end wall, a bolt, a shank on said bolt extending through said bore and received in said nut, a cavity in said shroud, a liner in said cavity located between said head and said shroud, a head on said bolt located in said liner, and a key-receiving configuration on said head.
The present invention also relates to an improvement to a device having a part and a cover which moves relative to said part, the improvement of a tamper-resistant lock structure addition to said device comprising a nut attached to said part, an aperture in said cover, a shroud mounted on said cover in alignment with said nut, an end wall on said shroud, a bore in said end wall, a cavity in said shroud, an inner surface of said shroud defining said cavity, a bolt, a shank on said bolt extending through said bore in said end wall and said aperture in said shroud, a head on said bolt in said cavity, and a key-receiving configuration on said head.
The present invention also relates to a method of establishing a tamper-resistant locking connection between a cover and a flange on a device comprising the steps of forming a first aperture in said cover, forming a second aperture in said flange, placing a nut in alignment with said second aperture, providing a shroud with a cavity and an end wall and a bore in said end wall, providing a bolt having a head and a shank, inserting said shank through said bore in said end wall and through said first aperture and into said nut with said head of said nut contained in said cavity.
The various aspects of the present invention will be more fully understood when the following portions of the specification are read in conjunction with the accompanying drawings wherein:
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Haseley Daryl R.
McHugh Steven M.
Estremsky Gary
Gastel Joseph P.
McGard, Inc.
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