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:
Dec. 24, 1991
Filed:
Mar. 12, 1991
Jean-Claude Degremont, Vascoeuil, FR;
Dosapro Milton Roy, Pont-Saint-Pierre, FR;
Abstract
Moving equipment for applying reciprocating drive to the diaphragm of a mechanically actuated diaphragm pump of adjustable stroke, the moving equipment comprising a slider slidably mounted in a fixed guide co-operating at one of its ends with an eccentric drive device whose eccentricity defines the maximum amplitude of the stroke of the slider in the guide, and coupled at its other end to the membrane. The slider is telescopic, having two pieces slidable relative to each other parallel to the guide, one of the pieces being a driving piece which is coupled to the eccentric and the other of the pieces being a driven piece which is coupled to the diaphragm, both pieces being held pressed against each other when the slider is in a retracted state by means of a coupling member developing a determined holding force, while the driven piece of the slider possesses an abutment member which co-operates with an abutment whose position along the guide is adjustable to interfere with the stroke of said drive piece to limit its amplitude to a fraction of the maximum amplitude generated by rotation of the eccentric and which opposes the holding force with a force that is at least equal thereto, thereby causing the slider to be extended.