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:
Mar. 31, 2015
Filed:
Oct. 11, 2006
Applicant:
Michael D. Vaughn, Ketchum, OK (US);
Inventor:
Michael D. Vaughn, Ketchum, OK (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B 31/00 (2006.01); B60V 1/14 (2006.01);
U.S. Cl.
CPC ...
B60V 1/14 (2013.01);
Abstract
An air flow controller for a pneumatically operated watercraft lift has a valve for opening and closing the air line to the pontoon and a manifold with a gate. The gate is biased to a first orientation in which air from the pontoon can be exhausted only to the atmosphere when the lift blower is switched 'off.' When the blower is switched 'on,' air flow from the blower moves the gate into a second orientation in which the blower can force air only into the pontoon. This configuration prevents flow of water into the blower during lowering of the pontoon while using relatively few and simple valve system components.