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Motor isolation gasket for central vacuum

  • US 5,813,085 A
  • Filed: 02/25/1997
  • Issued: 09/29/1998
  • Est. Priority Date: 02/25/1997
  • Status: Expired due to Fees
First Claim
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1. A central-vacuum power unit comprising:

  • a canister forming a hollow interior;

    a plate within said canister and dividing said hollow interior into first and second chambers, said plate having an opening;

    a vacuum motor vertically extending within said first chamber and having an inlet in fluid communication with said second chamber through said opening of said plate, said vacuum motor having an end surface generally facing said plate; and

    a gasket-encircling said opening and said inlet and sealing said motor to said plate, said gasket including a ring-shaped main wall, a flexible seat extending from said main wall toward and supporting said vacuum motor, and a protrusion extending from said main wall toward and engaging said end surface of said vacuum motor to form a seal therebetween, wherein said protrusion is located radially inward and spaced apart from said seat, wherein said gasket is molded of a rubber compound having a durometer of about 45.

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