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. 25, 1983
Filed:
Apr. 23, 1982
Donald J Stern, Bellingham, WA (US);
Jon I Allsop, Bellingham, WA (US);
Other;
Abstract
A manually-operated spray applicator for discharging a coating fluid is comprised of a receiving chamber having inlet and outlet ports for respectively admitting and discharging coating fluid under pressure developed by a jet of air issuing slightly upstream of the receiving chamber and created upon the manual stroke of an air-compression piston; a closed compression chamber isolated from the receiving chamber within which the airjet is developed; and a stroke-responsive sealing stem having a central airway with an air jet orifice in registration with the discharge area of the outlet port, which airway is in communication with the compression chamber; wherein the sealing stem is adjustably reciprocable along a line from a biased sealing position closing the outlet port at the beginning of a stroke on the piston, to a retracted position with the airjet removed to a preselected position slightly upstream of the outlet wherein the sealing stem returns to its sealing position prior to the completion of that stroke.