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. 25, 1991
Filed:
Jan. 29, 1990
Antoine G Abdulmassih, Burlington, MA (US);
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
A method and apparatus is provided for aiding in the removal of a fibrous material sheet from a smooth porous filter surface. An intermittent pattern of round-bottomed compression irregularities is impressed upon the sheet blunt round-edged device to cause it to be released from the filter surface in the areas where the irregularities are impressed by the device so that it will not stick to the filter surface nor split when it is contacted by the doctor device which guides it away from the filter surface. The spacing and the geometry of the compression pattern are according to the pulp characteristics and the operating conditions of the filter.