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:
Jan. 17, 1989
Filed:
Jun. 30, 1987
Applicant:
Inventor:
Giuseppe Annovi, Montebelluna, IT;
Assignee:
Dolomite S.p.A., Montebelluna, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219211 ; 219527 ; 36-26 ;
Abstract
A ski-boot heater has a heating resistor and a battery mounted in the boot and a socket is provided in the boot for connecting the resistor and the battery to an external voltage source. A control circuit enables the battery to be recharged with direct current when the socket is connected to an external AC or DC supply and when the battery is being recharged enables the resistor to be supplied with electrical power greater than that normally supplied to the resistor by the battery.