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:
Aug. 01, 2000
Filed:
Oct. 28, 1997
Applicant:
Inventor:
Thomas W Gow, Coon Rapids, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
34028611 ; 3405456 ; 340628 ; 340303 ; 340305 ; 340308 ;
Abstract
An improved retractable tamper resistant annunciator that can be mounted flush in a supporting structure is described. The annunciator mechanism includes a housing that has an actuatable cover. Signaling devices are enclosed within the housing, and can be selectively actuated when the cover is opened. A mechanism to open and close the cover to expose the signaling devices or to cover the signaling devices include a reversible motor structure. Alternative mechanisms to open and close the cover include biasing structures to move the cover in a first direction and an electrical device to move the cover in a second direction.