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:
Jul. 15, 1980
Filed:
Oct. 19, 1978
Donald W Fleischer, Wethersfield, CT (US);
Einar Asmundsson, Middle Haddam, CT (US);
Veeder Industries Inc., Hartford, CT (US);
Abstract
An electrical counting device with a rotary counter, a rotary drive assembly having a driven rotor with a verge for indexing the counter in stepwise fashion and a coaxial drive rotor in frictional engagement with the driven rotor, a coil torsion spring biasing the drive rotor in one angular direction and a tension wire conductor extending angularly about a drum of the drive rotor and connected to be heated and thereby lengthened with an electrical current to index the counter a first one-half count with the torsion spring and a remaining one-half count with the tension wire upon subsequent cooling and contraction thereof.