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:
Oct. 22, 1991
Filed:
May. 10, 1989
Richard R Hollowbush, Fleetwood, PA (US);
Other;
Abstract
The ultrasonic device which is sensitive to a selectably defined range for giving warning to a vehicle operator while backing which indicates visually an obstruction substantially out of range, close to range and within range coupled with an in range audio alarm giving an intermittent tone at a defined pulse rate which rate approaches non-pulsating as the object approaches within 25% of the selected range. A convex reflector of a defined radius in conjunction with angularly upright baffles disposed on the convexity is coupled to the transmitting/receiving transducer to generate an ultrasonic beam which encompasses objects anywhere in the range area adjacent to the vehicle's rear edge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile