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:
Nov. 27, 2001
Filed:
Mar. 11, 1999
Stig Frohlund, Hässleholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
An arrangement is provided in connection with a cellular mobile telephone, having a protective hatch or flip pivotably arranged on a housing of the telephone. The flip is pivotable around an axle and is arranged to be able to physically cover at least parts of a keypad on the telephone. The axle includes passive hinges at its one end for establishing a physical pivotable connection along an axis of pivot for the flip, and an active hinge arrangement at its other end for positively urging the flip to occupy at least one predetermined position. The active hinge arrangement is arranged in a substantially closed compartment or cavity at one end of the housing and is formed from a shaft and a combined torsion/pressure spring arranged thereon. The spring has at its respective ends, fingers acting as counteracting parts of a torsion spring for positively urging the flip from a closed and locked position covering the keypad, to an open use position at approximately 120°-170° from the closed position after release of the lock. The spring also includes press surfaces affected by a cam follower arrangement, thereby obtaining a non-destructive override function for the flip.