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Document Number
US Patent 6892889
Issued Date
May 17, 2005
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Abstract
A screen system employs a resiliently mounted housing, a vibration generator mounted to the housing, a mounting frame fixed to the resiliently mounted housing and a support surface. This system receives a screen including a screen frame and pre-tensioned screen cloth. The frame includes an inwardly extending mounting flange accessible from below the screen when placed in the housing. Clips pivotally mounted relative to the mounting frame include a first rounded lever extending upwardly to selectively engage the inwardly extending mounting flange. Second levers extend downwardly to cooperate with actuators. The actuators include inflatable bodies with contacts which, upon inflation, force the clips to engage the inwardly extending mounting flanges. This engagement retains the screen on a resiliently mounted housing and is able to further tension the screen in place.
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Number of Claims:
7
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Owner
M-I, L.L.C. (Houston, TX)
Published
May 17, 2005
Application Number
10/287,846
Filed
November 5, 2002
US Classification
209/405   209/309 209/331
Int'l Classification
B07B   1/48   (20060101)   B07B   1/46   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Parent Case
This is a divisional of U.S. patent application Ser. No. 09/432,921, filed Nov. 2, 1999 now U.S. Pat. No. 6,513,665 allowed, the disclosure of which is incorporated herein by reference.
USPTO Field of Search
209/405  
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