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:
Dec. 24, 1991
Filed:
Aug. 10, 1990
Applicant:
Inventor:
Edward B Learned, Fort Branch, IN (US);
Assignee:
Potter & Brumfield, Inc., Princeton, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
331143 ; 3311 / ;
Abstract
An adjustable frequency oscillator has an adjustable element, such as a potentiometer, for setting the frequency of oscillation. The circuitry in the oscillator is such that the frequency of oscillation is relatively immune to the characteristics of the adjustable element. The oscillator may be used in a time delay circuit, notably, in a time delay circuit used to control a time delay relay.
Learned, Edward. (1991). Oscillator circuit (U.S. Patent No. 5075642). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5075642
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile