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:
Jun. 08, 1976
Filed:
Sep. 23, 1974
Ronald L Baker, Florence, KY (US);
Other;
Abstract
A dental handpiece control in which a single housing for controlling the flow of air and water to a dental handpiece is combined with a foot pedal. In the housing is a pressure regulator directly operated by the foot pedal and a water valve controlled by air from the pressure regulator. A switching valve operated by push buttons adjacent the foot pedal controls the flow of air to the water valve, the operation of the push buttons determining whether the handpiece is operated on an air mode or an air/water mode. The water valve is designed to eliminate drip when the instrument is shut off by drawing water from the handpiece toward the control unit upon relief of air pressure from the water valve.