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:
Mar. 03, 1981
Filed:
Oct. 31, 1978
Applicant:
Inventors:
Martin Haub, Steinbach, DE;
Manfred Stein, Eschborn, DE;
Assignee:
Quarz-Zeit AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04C / ;
U.S. Cl.
CPC ...
368 85 ; 368 86 ; 368 87 ; 368217 ; 368218 ; 368184 ; 318685 ; 318696 ;
Abstract
Electric clock with an oscillator, particularly a quartz oscillator, a frequency divider connected to the quartz oscillator and a control stage connected following the frequency divider, via which control stage a stepping motor, which stepping motor is coupled with the dial train, is able to be applied with pulses of the same or alternating polarity. Each pulse is formed from a number of individual pulses, the pulse duty cycle of the individual pulses reducing toward the end of the first mentioned pulses.