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

• Current Assignee: Charles F. Parkinson, Charles W. Rei Jr, Suzanne E. Vanderbilt
• Original Assignee: Charles F. Parkinson, Charles W. Rei Jr, Suzanne E. Vanderbilt
• Inventors: Vanderbilt, Suzanne E., Parkinson, Charles F., Rei, Charles W. Jr.
• Application Number:
  US04/475,367
• Time in Patent Office: 692 Days
• US Class Current: 297/284.6
• CPC Class Codes: A47C 4/54 Inflatable chairs connection of valves to inflatable elastic bodies B60C29/00
• CPC Class Codes: A47C 7/467 adjustable by fluid means
• CPC Class Codes: B60N 2/7082 with air or fluid cushions B60N2/914 takes precedence
• CPC Class Codes: Y10S 297/03 Pneumatic

Claims

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