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:
Feb. 23, 1988
Filed:
Oct. 22, 1984
Marion H Cates, Largo, FL (US);
William E Skillman, III, Seminole, FL (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A thermochromatographic column has a fused silica capillary with a high temperature chemically inert polymer coating thereon supporting a thin heater film formed by the deposition of either a high resistance metallic compound auto-catalytically from a solution of the compound or a nichrome film sputtered onto the polymer clad capillary tubing. The electrical contacts to the heater film may be either resistance welded thereto or the electrically conductive wires may be attached to the capillary body and integrated into the heater film during the deposition of the heater film. An outer layer of an electrically insulating material is applied to the heater film to electrically isolate the heater film and to protect the heater film from damage.