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. 03, 1989
Filed:
Sep. 03, 1987
Applicant:
Inventors:
Robert D Strattan, Tulsa, OK (US);
Mary E O'Connor, Tulsa, OK (US);
James R Sorem, Jr, Tulsa, OK (US);
Assignee:
Micro Dry, Inc., Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 / ; 219 / ; 219 / ; 219 1057 ; 34 30 ; 34 39 ; 34 46 ;
Abstract
The invention relates to a microwave heating and drying method and apparatus utilizing a multiplicity of microwave propagating sources positioned about a heating and drying chamber. The microwave energies are optimized to provide a greater uniformity in the heating and drying of articles disposed in the heating and drying chamber, while preventing interference of the wave propagations. The microwave pulses are cross-polarized and time-multiplexed. Also, the focusing and spread angles are controlled. The end point of the drying cycle is sensed to control microwave generation.