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:
Jun. 23, 1987
Filed:
Aug. 19, 1985
James C Buck, Plattsburgh, NY (US);
Other;
Abstract
A brush for use in a self service car wash having an applicator head containing cleaning bristles and an elongated tubular handle adapted to bring wash fluids to the head. A relief valve is positioned in the handle which is designed to open when the fluid pressure in the handle exceeds a given value. A control valve is located between the relief valve and automatic fluid dispensing equipment for delivering fluids to the brush during a wash cycle. A bypass is provided in the control valve that permits water to drain into the handle when the control valve is closed, as for example between wash cycles. Pressure thus builds up in the handle behind the relief valve whereupon the valve periodically opens to relieve the pressure.