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:
Sep. 20, 1994
Filed:
Feb. 08, 1993
Applicant:
Inventors:
Timothy L Mullen, Champlin, MN (US);
Thomas J Schaefer, Buffalo, MN (US);
Tera D McCutcheon, Coon Rapids, MN (US);
Assignee:
Graco, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B / ;
U.S. Cl.
CPC ...
239428 ; 239431 ;
Abstract
A nozzle for use in a foam gun is designed so that the ports for the two materials both enter the flow passage in the same plane. This serves to eliminate lead/lag flow conditions which result in portions of the material being off-ratio. Counterbored or milled slots encircle the angled sealing surface with the slots machined in from alternating edges of the surface communicating with the respective flow passages for the two (or more) materials.