Closure fasteners – Bolts – Swinging
Reexamination Certificate
2002-07-19
2003-09-09
Gall, Lloyd A. (Department: 3676)
Closure fasteners
Bolts
Swinging
C070S058000, C070S169000
Reexamination Certificate
active
06616201
ABSTRACT:
BACKGROUND OF THE INVENTION
Regular equipment shells whether of electric devices, computer main frame, industrial computer, or related devices, usually are provided with open-able or close-able shell covers, for reasons for safety, dust-proofing, convenience of maintenance etc., also said shell covers are provided with locking devices for opening-up the shell covers for maintenance or close-up. And the referred shell covers mostly are produced through procession in presses from metallic materials for the consideration of durability, thickness, weight, processing, shaping, waterproofing, corrosion resisting, and cost. Although, the part of locking devices for close-up of conventional shell covers of equipment shells, either was too voluminous or too complicated in structure, occupied too much space, cost more, or inconvenient in operation relatively.
Aiming at the various defects in the close-up lock of metallic shell covers of the above conventional equipment shells, accordingly, the inventor developed attentively and completed the present invention, in expectation to provide a open-close device for shell covers, suitable for various kinds of shell covers, which comprises a traversing open-close or rotary-handle open-close device suitable for shell covers. The device of the present invention provides a larger tenon and a smaller tenon on a shell cover thereof, and a sliding lock piece installed on the back side of the smaller tenon, and provides a rotary lock member inside the shell wherein corresponding to the larger tenon, with said rotary lock member extending through the larger tenon of the above shell cover, when the shell cover is closed-up to position therewith, by pressing the rotary lock member and pushing the lock piece in the smaller tenon, rendering the lock piece locking into the lock hole of the rotary lock member, to achieve a good locking positioning.
The detailed structure and function of the present invention are described with illustrations behind. The lock devices of the invention applied in various shell covers should be within the containment part of the patent scope of the invention, the patent specification and illustration of the invention are exemplified with industrial computer as description and illustration drawing thereof, which should not be limited within implementation application in the shell cover of a computer industrial, hereby set forth.
SUMMARY OF THE INVENTION
The present invention provides a device for opening and closing of a regular shell cover, especially referring to open-close device suitable for installation on the shell cover of a metal shell, which provides a larger tenon and a smaller tenon on the shell cover, and on the inside at the smaller tenon provides a sliding lock member, also in the shell corresponding to the position of larger tenon provides a rotary lock member, through pressing the rotary lock member after the closing of the shell cover, and pushing the lock piece of the lock member in the smaller tenon, making the lock piece locking into the lock hole of the rotary lock member in place, reverse steps to open.
REFERENCES:
patent: 3591219 (1971-07-01), Graziosi
patent: 4071722 (1978-01-01), Hart
patent: 4536022 (1985-08-01), Giordano
patent: 5125697 (1992-06-01), Kahl et al.
patent: 5172520 (1992-12-01), Hostetler et al.
patent: 5219195 (1993-06-01), Lawrence
patent: 5593192 (1997-01-01), Stuchinsky
patent: 5751545 (1998-05-01), Jung
patent: 6000250 (1999-12-01), Daoud
patent: 6373692 (2002-04-01), Cheng
Gall Lloyd A.
T-Win Sheet Metal Co., Ltd.
Troxell Law Office PLLC
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