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:
Jun. 09, 1981
Filed:
Oct. 16, 1978
Applicant:
Inventors:
Duane R Bolgiano, Bala Cynwyd, PA (US);
Joel M Benjamin, Jr, Pottstown, PA (US);
Victor Meyer, Jr, Telford, PA (US);
Assignee:
International Mobile Machines Incorporated, Bala Cynwyd, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 77 ; 307 66 ;
Abstract
An electrical control system containing a power supply network including a primary high voltage power source and a secondary low voltage power source, the primary power source being held inactive except for periodic intervals of time, and also being removable for replacement or recharging; the secondary power source being charged during operation of the primary power source and being operative while the primary power source is inoperative.