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:
Sep. 23, 1980
Filed:
Dec. 04, 1978
Richard W Anderson, Reading, MA (US);
Alfred I Bottner, Natick, MA (US);
GTE Sylvania Incorporated, Stamford, CT (US);
Abstract
A small, portable lightweight, water-resistant, manually-operated signalling device. The signalling device includes a signalling assembly fully enclosed within a pair of hermetically sealed housings. The signalling assembly includes a signalling circuit and a pressure sensitive switch adapted, when depressed, to actuate the signalling circuit. One of the housings includes a recessed, flat, semi-rigid deflective wall having an indentation formed therein and in physical contact with the pressure sensitive switch. The indentation is capable of being manually depressed and, when depressed, to transmit the pressure applied to the indentation to the switch, thereby operating the signalling circuit. The indentation and the switch are arranged with respect to each other so that depression of the switch and actuation of the signalling circuit can only occur in response to pressure being applied to the indentation. The signalling device further includes a shock-absorbing rim formed at the perimeter of the housing having the indentation therein for minimizing the possibility of unintentional or accidental operation of the signalling device by virtue of the signalling device coming into physical contact with a surface or object, as by dropping the signalling device.