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. 14, 1976
Filed:
Sep. 12, 1973
Myron Greenspan, Brooklyn, NY (US);
Abraham Friedman, Brooklyn, NY (US);
Other;
Abstract
An alarm transmitter device includes a storage element which stores electrical charge and which energizes an output transmitting circuit upon the occurrence of an alarm condition. To maintain the storage element at full charge or in ready standby mode, a trickle charging circuit is provided which includes an energy conversion device for converting solar energy, broadcast electromagnetic energy, heat energy or the like into an electrical current suitable for trickle charging the storage element. After the storage element is substantially discharged, subsequent to an occurrence of an alarm condition, a battery or other source of electrical energy is connectable to terminals connected to the storage element for initially rapidly recharging the storage element to the fully charged state.