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. 07, 1989
Filed:
Jun. 08, 1987
Sherman L Larson, Palmyra, NJ (US);
Daniel J Del Prato, Marlton, NJ (US);
Robert Klaus, Barrington, NJ (US);
Sherman Industries, Inc., Palmyra, NJ (US);
Abstract
Dryer equipment for an automatic car wash includes at least one proximity sensing system for maintaining a forced-air stripping nozzle within a predetermined range of the surface of the vehicle. Each sensing system includes a pair of associated triple-beam photoelectric switches, each of said triple beams being adjusted to focus at a different focal point at a different distance from the nozzle. Electronic circuitry responds to signals developed by the sensing system to control an air/oil power system which operates hydraulic cylinders to maintain the nozzle within a relatively narrow range from the vehicle surface. The range is determined by the difference between the focal points of the triple beams of the two associated photoelectric switches. Preferably, .at least two proximity sensing systems are provided--one for the top of the vehicle and the other for the passenger side of the vehicle. An ultrasound detector is also provided for the top system for raising the nozzle when a windshield is detected as being proximate.