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:
Feb. 07, 1989
Filed:
Oct. 06, 1986
Edward P Kromrey, Osceola, WI (US);
Richard J Mehus, Bershire, GB;
Ecolab Inc., St. Paul, MN (US);
Abstract
An aspirating foamer having a water inlet path to admit water into the nozzle assembly, two diametrically opposed foaming material inlet paths perpendicular to the water inlet path, and a conical conduit wherein the pressurized water and foaming materials mix and are allowed to expand; and an air inlet valve at the exiting end of the conical conduit for admitting air; and an exiting path for the foam. In one foamer (2) the conical conduit has an outwardly tapered angle of approximately 5 degrees (from centerline) initially with an immediate increase to an outwardly tapered angle of about 7 degrees in the second half of the conical conduit. In another embodiment foamer (102) according to the invention the conical conduit has an initial taper of 21/2 degrees followed by a 15 degree diffusion angle and then a 7 degree angle.