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. 11, 1982
Filed:
Aug. 27, 1979
Raymond W Kunz, Monroe, CT (US);
Eugene T Fleischhauer, Stamford, CT (US);
Clairol Incorporated, New York, NY (US);
Abstract
A lockable rotatable heated curling brush which is used for styling and curling hair includes a rod housing which serves as a handle, an inner tube fixedly connected to said handle and protruding therefrom, a heater inside said inner tube electrically connected to a swivel cord, and an outer tube rotatably supported by said inner tube, said outer tube having a round brush on the outer surface thereof. The outer tube is held in the handle by a circular guide in front which mates with a notched flange at the rear of the outer tube. There is a spring latch device which locks or frees the outer tube so it can rotate. The inner tube within the outer tube is aluminum and is in heat conducting relationship with the heater and the outer tube. The heater is positioned in the inner tube such that the axial center of the heater is forward of the longitudinal center of the inner tube at a point which offsets the unequal heat loss rate to the atmosphere of the forward and rearward ends of the outer tube whereby maximum uniform heating of the outer tube and brush occurs. The preferred heater is a positive temperature coefficient (PTC) thermistor.