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:
May. 09, 1989
Filed:
Oct. 09, 1987
Leslie P Williams, Port Neches, TX (US);
CCA, Inc., Port Neches, TX (US);
Abstract
An apparatus for making foam using a foam concentrate, a liquid and a vapor comprises a primary cylinder defining a mixing chamber therein. An eductor is disposed substantially within the mixing chamber for drawing in foam concentrate while mixing the foam concentrate with a portion of the liquid entering the apparatus. A secondary cylinder defining a foam chamber therein is in flow communication with the primary cylinder at one end via a flow passage therebetween. The eductor extends through the flow passage and into the secondary cylinder thereby defining an annulus in the flow passage to allow a portion of the liquid in the primary cylinder to by-pass the eductor and enter the secondary cylinder. Vapor is drawn into the secondary cylinder to mix with the combined liquid stream from the annulus and the stream from the eductor to create foam in the secondary cylinder. The foam may be directed to a storage tank for fire-fighting.