The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 1989
Filed:
Oct. 30, 1987
Nils V Holmgren, Greendale, WI (US);
Donald R Martin, Waukesha, WI (US);
Hinhsomchay Phouybanhdyt, Waukesha, WI (US);
Cooper Power Systems, Inc., Houston, TX (US);
Abstract
A switchgear apparatus comprising a row of pressure vessels, a frame including first and second generally horizontal, elongated members rigidified by the row of pressure vessels, an outer housing including a generally horizontal top portion supported by the frame, generally vertical, spaced apart side portions connected to the top portion, and a door which is movable between a lowered, closed position in which the door prevents access to the interior of the housing and a raised, open position in which the door affords access to the interior of the housing, the door including a generally planar first portion connected to the top portion for pivotal movement relative thereto about a generally horizontal axis, the first portion being angularly spaced from the top portion when the door is in the raised position, a mechanism for assisting manual movement of the door from the lowered position to the raised position, and a mechanism for releasably retaining the door in the raised position.