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:
Mar. 23, 1993
Filed:
Feb. 25, 1992
Albert Solnit, Beverly Hills, CA (US);
Robert Goldstein, Los Angles, CA (US);
Martin Brouillette, Sherbrooke, (Quebec), CA;
Other;
Abstract
The present invention is a noise reducing aspirator which is used to carry away air, water, saliva, dental debris from the mouth of a patient or surgical debris. The present invention comprises an open-ended large solid tubular housing having one end adapted to be connected to a source of suction and the other end adapted to be connected to an aspirator tip which will collect air, water, saliva and dental debris. The housing has a sufficient internal ejecting tubular passageway between the ends to accommodate rapid flow of air, water, saliva and dental debris therethrough. The housing includes chamfered pressure venting tubes of equal diameter circularly distributed around, and connecting to, a main suction tube via slanted pathways. The pressure venting tubes reduce and harmonize the noise level of the aspirator and avoid discomforting suction to the patient's tissue. The ends of the housing are designed to secure an aspirator tip or to a source of suction and are designed for easy removal and replacement. The aerodynamic contouring of the present invention ensures that the meeting points of the air flows are as smooth as possible so that shear layer turbulence is reduced to a minimum; resonating cavities, which could create and amplify sound, are eliminated; circular distribution of the pressure venting tubes flatten the intense directional sound peaks originating from the openings of each tube when sound from each tube collides with sound from the others and scatter; and a large solid housing and material selection dampen the minimal amounts of sound produced.