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:
Sep. 13, 1994
Filed:
Oct. 30, 1992
Applicant:
Inventors:
Eugene B Fisher, Chester, VA (US);
Mark St John North, Richmond, VA (US);
Warren D Winterson, Midlothian, VA (US);
Leif E Jaxmar, Vallakra, SE;
Lennart F Olsson, Nyhamnslage, SE;
Nils S Selander, Angelholm, SE;
Assignee:
Philip Morris Incorporated, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198778 ; 198822 ; 62381 ;
Abstract
An improved endless conveyer belt is provided which can carry minute particles of conveyed product such as are found in packed bed applications, without limiting the ability of the conveyor belt to articulate into a spiraling conveyor stack. The perforations in the foraminous bottom member of the conveyor belt can be dimensioned according to the size of conveyed products. The number and placement of the perforations can be chosen to alter gas flow characteristics of the belt.