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. 16, 1990
Filed:
Apr. 28, 1989
Robert A Meyer, Spearfish, SD (US);
Ramvac Corp., Spearfish, SD (US);
Abstract
A multi-function control component for use in dental vacuum systems includes, within a single housing, a vacuum control device for controlling the vacuum intensity within the system; a first air filter device for cleaning air permitted to enter the system by the vacuum control device; a second air filter for filtering gases flowing from an associated separating tank to a vacuum pump; a moisture detection device mounted in the housing for shutting down the vacuum pump drive motor upon detection of a predetermined level of moisture in the housing; a vacuum intensity measuring device; and a sealing device for sealing off the separating tank from the vacuum pump. The vacuum pump is a rotary vane pump, and is operatively connected to dental aspirator tips.