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:
Jun. 26, 2001
Filed:
Sep. 08, 2000
Applicant:
Inventor:
Eugen Schwarzkopf, Lüdenscheid, DE;
Assignee:
Hotset Heizpatronen u.Zubehor GmbH, Ludenscheid, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/44 ; H05B 3/58 ; F16L 1/302 ;
U.S. Cl.
CPC ...
H05B 3/44 ; H05B 3/58 ; F16L 1/302 ;
Abstract
An electrical sleeve heater has an inner tube centered on an axis and formed with an axially extending and radially inwardly open cutout open at an axial end of the tube, an electrical heater coil wound around the tube, an outer tube engaged around the heater coil and tube, and an axially elongated thermal sensor probe having a sleeve and a pair of wires extending axially in the sleeve fitted in the cutout. The inner tube has substantially cylindrical inner and outer surfaces and the thermal sensor probe has a radial thickness smaller than a radial distance between the inner and outer surfaces.