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. 10, 1978
Filed:
Aug. 16, 1976
Robert G Ross, E. Northport, NY (US);
Mark M McCracken, Richardson, TX (US);
Parkell Products, Inc., Farmingdale, NY (US);
Abstract
A dental air-water handpiece control system for operating a plurality of handpieces and an air-water syringe including a plurality of control pedals equal in number to the number of handpieces and each having a needle valve responding to the distance the pedal moves when operated. Replaceable control modules are also included, with each module servicing a single handpiece and having a main control valve regulating air-water flow to the handpiece it services. Diaphragms control the operation of the main control valves and a laminated base plate defines channels for air and water flow through the unit. A water pressure regulator and an air gauge are also provided in the system.