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:
Jan. 19, 1993
Filed:
Oct. 17, 1991
Raymond Cherfane, Stone Mountain, GA (US);
Flexible Products Company, Marietta, GA (US);
Abstract
A new and improved foam dispenser gun comprises in combination a gun body, a mountable dispenser moldule and an air cylinder actuator assembly. The dispenser module includes a dispenser housing and a valving insert received therein having a stepped outer configuration. The insert includes a forward minor diameter portion having a diametrical dimension slightly less than that of the housing passageway. The rearward major diameter portion of the insert is designed for press-fit engagement in the housing passageway. The clearance provided between the forward end of the housing passageway and the forward minor diameter portion of the insert, in accordance with the present invention, permits relaxation of the insert member in a controlled manner in use which reduces or eliminates the buildup of residual stresses on the insert member which are believed to be responsible for cold flow deformations of the insert. A reduction in cold flow deformation of the insert provided by the simplified structure of the dispenser module of the invention leads to a prolonged use life for the cartridges.