VALLEY PLASTIC TM VS. 1989 PLEXIGLAS DUST COVERS

VALLEY INDUSTRIAL PLASTICS CO.1989-1991

Protective dust cover for computer components - Patent 5163870

HISTORY. IN 1989-1991 VALLEY INDUSTRIAL PLASTICS CO. AND/OR COMPANY DESIGNERS OF PLEXIGLAS PLASTIC PRODUCTS DEVELOPED THIS ARTICLE OF MANUFACTURE SIMILAR TO THE Protective dust cover for computer components - Patent 5163870 ASSIGNED TO SYSTEMS ALTERNATIVES CORPORATION OF TOLEDO, OHIO. THIS FIRM SPECIALIZED IN THE DESIGN OF COMPUTER SYSTEMS AND PERIPERALS. THE FIRM SAW MARKET POTENTIAL FOR THIS PRODUCT IN AN INDUSTRIAL SPECIFIC MARKET. THIS STARTING POINT WAS INVALUABLE SOURCE OF KNOWLEDGE AS A PIECE OF PRIOR ART MADE OF PLEXIGLAS IT INSPIRED THE DEVELOPMENT OF THIS WORK. THOMPSON PLASTIC AND CHEMICAL COMPANY'S VALLEY PLASTICS TM PC COMPUTER COVER USES POSITIVE AIR FLOW SO IT IS DIFFERENT THAN THIS FIRST TRUE PLEXIGLAS COMPUTER COVER. PLEXIGLAS IS BRITTLE IN TERMS OF ITS BRINNEL HARDNESS RATING SO IT IS JUST FOR THE WINDOW NOT THE ENTIRE STRUCTURE IN THE NEW INNOVATION WITH POSITIVE AIR FLOW. ONLY KEVLAR COMPOSITE CASES WILL COMPETE AGAIST STEEL NEMA ENCLOSURES.

FOR ME THE STORY OR THE IDEA OF USING POSITIVE AIR DISPLACEMENT FOR A COMPUTER DUST ENCLOSSURE FOLLOWED NECESSARILY FROM AFTER REVISTING THIS FIRST PLASTIC PRODUCTS AIMED AT COMSUMERS. MY FATHER RUSTED OUT HIS ROLLS ROYCE RADIATOR AFTER HE TOLD ME THAT IT WAS THE ABOUT THE ONLY THING YOU WERE ABLE TO WORK ON WITH THIS CAR TO KEEP THE WARANTEE IN FORCE. iT WAS THAT AND THE FLOOR MATTS BUT THEY COST $3000 EACH BECAUSE THE WOOL CAME FROM THE FLOCK OF SHEEP THAT ROLLS ROYCE HAD IN ENGLAND, SOMEWHERE IN THE SCOTTISH HIGHLANDS I THINK. WELL AS LUCK WOULD HAVE IT I HAD A FRIEND WHO WENT TO MIT THAT EXPLAINED HOW TO USE POSITIVE DISPLACEMENT TO FLUSH A RADIATOR TO PREVENT THIS PROBLEM FROM REOCCURRING. SO AFTER TRAVELING THE WORLD I REALIZED THAT IT WAS POSSIBLE TO ADAPT THIS KNOWLEDGE TO THE COMPUTER COVER PROTOTYPE WHICH WAS FABRICATED FROM ACRYLIC AND STENGTHEN THE ENCLOSURE AND THEN SOME.

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