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:
Nov. 01, 1988
Filed:
Nov. 10, 1986
Applicant:
Inventors:
Russell S Shelton, Flanders, NJ (US);
Michael J Schaffer, Flanders, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
33503 ; 3316 / ; 3317 / ; 33559 ;
Abstract
A probe assembly has a housing connected to the head of a coordinate measuring machine, a carrier movably connected to the housing, and a piezoelectric crystal mounted on the carrier. A stylus is mounted on the carrier. An electronic circuit receives signals from the crystal and, at an adjustable threshold value, the circuit provides output signals which are greater than and substantially simultaneous with signals from the crystal. A timer maintains the output signal for a time interval after the signal is produced by the crystal.