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Inflatable back support for a seat

  • US 3,326,601 A
  • Filed: 07/28/1965
  • Issued: 06/20/1967
  • Est. Priority Date: 07/28/1965
  • Status: Expired due to Term
First Claim
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1. IN A SEAT STRUCTURE INCLUDING A SEAT ADAPTED TO BE SUPPORTED ON A PLATFORM AND A SEAT BACK CONNECTED TO SAID SEAT FOR FORMING SAID SEAT STRUCTURE, SAID SEAT BACK HAVING A SEAT BACK CONSISTING OF A TOP, A BOTTOM AND A PAIR OF SIDE RAILS, A PLURALITY OF SINUOUS SPRINGS SECURED TO SAID FRAME, A LOADING PLATFORM CONSISTING OF A PORTION OF SAID SINUOUS SPRINGS IN SUBSTANTIALLY THE SAME PLANE, AN INSULATOR SECURED TO SAID PLATFORM, AN INFLATABLE BACK SUPPORT SECURED ON SAID INSULATOR AND TO SAID PLATFORM ADJACENT SAID BOTTOM RAIL, SAID BACK SUPPORT INCLUDING AN EXPANDABLE FRONT PORTION CONNECTED TO SAID BACK PORTION, A PLURALITY OF AIR POCKETS FORMED BETWEEN SAID FRONT AND SAID BACK PORTION, EACH OF SAID AIR POCKETS BEING

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