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Vibration isolating surface protector with high traction properties

  • US 4,355,777 A
  • Filed: 10/21/1981
  • Issued: 10/26/1982
  • Est. Priority Date: 12/11/1978
  • Status: Expired due to Fees
First Claim
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1. A surface protection device comprising:

  • a flat substantially rigid backing plate of predetermined contour having front and rear surfaces, said rear surface having a recess means for the location of a cooperating load-source device, said front surface having a compliant soft resilient matching slab cushion in retentive intimate contact therewith, said cushion having disposed on edges thereof integral surrounding outer and annular inner thin skin-like compliant membrane portions arranged in symmetrical relationship, said outer and inner membrane portions respectively converging and diverging progressively away from said front surface of said plate at an angle between 1° and

    10°

    with respect to an axis normal to said front surface thereby forming a pressure sensitive hollow substantially conical frustrum by means of which said cushion and said membrane portions mutually cooperate to produce high frictional properties in conjunction with a working surface when light loads are applied in a direction approximately normal to said rear surface at said recess means.

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