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. 01, 1994
Filed:
Mar. 29, 1992
Applicant:
Inventors:
John C Wiltrout, Chippewa Falls, WI (US);
Nora M Wiltrout, Chippewa Falls, WI (US);
Assignee:
Dental Components, Inc., Newberg, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433114 ; 433132 ;
Abstract
A housing of the device receives a pressurized air flow which is filtered and directed past a pressure reducing valve prior to delivery to a purge valve assembly. The purge valve assembly includes a connector configured for endwise engagement with the specific handpiece being purged. The connector is removably mounted in the purge valve assembly which also includes a valve member displaced by the connector during a purging operation from a spring biased closed position. Various connectors are interchangeable to adapt the device to service a variety of dental handpieces.