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. 24, 2011
Filed:
Nov. 30, 2007
Applicants:
James L. Sherrill, Cookeville, TN (US);
R. Devin Ridley, Cookeville, TN (US);
Inventors:
James L. Sherrill, Cookeville, TN (US);
R. Devin Ridley, Cookeville, TN (US);
Assignee:
Tutco, Inc., Cookeville, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/06 (2006.01); H01C 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An open coil electrical resistance heater uses a number of offset insulators to support the coil of the heater. The offset insulators configure the run of coil in a sinusoidal shape to hold the insulators in a more secure manner and reduce vibration and noise generation during heat operation. The sinusoidal configuration of the coil also reduces the problem of shadowing of portions of the resistance wire coil.