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. 31, 1989
Filed:
Jun. 05, 1986
Robert Owens, Oakdale, PA (US);
Other;
Abstract
A foot comforter apparatus is adapted to ventilate, and/or may cool or heat the foot. The comforter may have a heat exchanger and has a hollow foot supporting chamber provided with an upper wall and a lower wall. The foot supporting chamber is at least partially compressible to permit cyclic application of foot pressure to cause pumping action of the fluid. Conduit means connect the heat exchanger with the pump. The conduit means is connected to the chamber at preselected positions in order to facilitate one direction flow of the fluid along and parallel to the longitudinal axis of the chamber. Spacers may be provided within the chamber to resiliently and quickly urge the upper wall away from the lower wall. Check valves may be provided in the conduits to resist undesired multi-directional flow of the fluid. One preferred embodiment of the system represents a closed circuit with heat exchanger conduit sections connecting the supply and return conduits and such conduits are charged with air. Another preferred embodiment represents an open circuit in which ambient air is drawn into the system and discharged around a user's foot.