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:
Feb. 02, 1988
Filed:
Sep. 25, 1986
Applicant:
Inventors:
Peter K Purdy, Seattle, WA (US);
Kirk W Beach, Seattle, WA (US);
Assignee:
Skisonics Corporation, Kirkland, WA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73597 ; 324160 ;
Abstract
A transducer is mounted on a ski and transmits ultrasonic waves toward the stationary medium over which the ski is moving. The same transducer or a separate transducer detects waves reflected from the stationary medium. A computer calculates the speed of the ski from the Doppler shift of the reflected waves and actuates a readout unit to indicate the speed to the skier.