Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2000-01-06
2002-02-12
Hughes, S. Thomas (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C403S353000
Reexamination Certificate
active
06345429
ABSTRACT:
TECHNICAL FIELD
The present invention relates to an apparatus and method for fastening and, more particularly, to an apparatus and method for fastening objects flush to a surface.
BACKGROUND OF THE INVENTION
Large networked computer systems require a substantial number of printed circuit cards to perform a countless variety of tasks. The printed circuit cards are typically housed within a plurality of rectangular boxes, which are commonly referred to as a chassis or a main carrier of components. The chassis are then loaded into the system having a cabinet like structure which is configured to receive and support a number of chassis. The chassis are generally inserted laterally and stacked one on top of the other. Each chassis has at least one exposed end where a cable is inserted so that the printed circuit cards can interface, for example, with an SP computer system. The cabinet like structure can also expose two ends of the rectangular chassis so that a cable can connect with, for example, a 390 computer system.
The cabinet like structure provides an area defined only slightly greater in length, width and height than the chassis itself. As a result, the chassis cannot have any protrusions or extensions, such as a screw head or other securement devices, located on its outer surface. A screw head can actually prevent the chassis from properly loading into the structure. Moreover, and if the chassis cannot be inserted into the structure then the computer system cannot interface with the printed circuit cards. Consequently, if the printed circuit cards or components are secured in the chassis, then the securement device must be flush to the outer surface of the chassis.
Other alternatives such as using adhesives, employing screws and even welding are labor intensive and do not provide a convenient removable means for securing printed circuit cards flush to the outer surface of the chassis.
As a result, there is a need for an apparatus and method for fastening objects flush to a surface.
There is also a need for an apparatus and method for fastening a securement member flush to an upper surface of a mounting cover.
There is yet another need for a method and apparatus for fastening a securement member flush to a mounting cover so that a printed circuit card or other component may properly interface with a printed circuit board in a chassis without interfering with the insertion of the chassis into the computer system.
There is also need for an apparatus and method for fastening a securement member flush to an upper surface of a cover mounted to a chassis to ensure the chassis will properly load into its intended structure for use with a computer system.
SUMMARY OF THE INVENTION
An exemplary embodiment of the present invention is an apparatus and method for fastening objects flush to a surface. In particular, the apparatus and method allow a plurality of securement members to be inserted flush into a plurality of openings. The method comprises inserting an engagement member of an object through an opening in a planar member. The insertion of the engagement member causes the object to move in a first direction. The engagement member remains at or below the surface of the planar member. The engagement member of the object is repositioned in the opening. The repositioning causes the engagement member to be moved in a second direction. The second direction is substantially orthogonal to the first direction. An engaging force is applied to a portion of the engagement member. The engaging force is applied in direction substantially opposite to the first direction. The engaging force causes a portion of the engagement member of the object to be secured within the opening.
These and other features and advantages of the present invention will be apparent from the following brief description of the drawings, detailed description, and appended claims and drawings.
REFERENCES:
patent: 319948 (1885-06-01), Bates
patent: 677130 (1901-06-01), Hatfield et al.
patent: 1178338 (1916-04-01), Niernsee
patent: 3829741 (1974-08-01), Athey
patent: 4932105 (1990-06-01), Muller
patent: 5193244 (1993-03-01), Meyers
Furey Edward
Jalanti David J.
Cantor & Colburn LLP
Gonzalez Floyd
Hong John C.
Hughes S. Thomas
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