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Seat cushion

  • US 5,137,333 A
  • Filed: 05/21/1990
  • Issued: 08/11/1992
  • Est. Priority Date: 01/25/1990
  • Status: Expired due to Fees
First Claim
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1. A seat cushion including:

  • a base having upper and lower surfaces and having front and rear portions;

    rocking means affixed to said base;

    two internal rear wedges disposed on and affixed to the upper surface of the rear portion of the base and having a first upper face that slant a downward toward the front portion of the base;

    two internal front wedges disposed on and affixed to the upper surface of the front portion of the base and having a second upper face that slants downward toward the rear portion, one internal rear wedge and one internal front wedge being disposed on each side of a centerline that bisects the base into right and left portions; and

    an external cushion enveloping said front and rear wedges and said upper surface of said base, the top surfaces of first and second portions of said external cushion lying above said first and second upper faces being sloped downwardly toward each other from points above said front and rear base portions to form an elongated cavity for receiving the buttocks of a user.

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