Aircraft seat

• US 3,224,808 A
• Filed: 01/17/1964
• Issued: 12/21/1965
• Est. Priority Date: 01/17/1964
• Status: Expired due to Term

• Current Assignee: James F. Spielman
• Original Assignee: James F. Spielman
• Inventors: Spielman, James F.
• Application Number:
  US04/338,416
• Time in Patent Office: 704 Days
• US Class Current: 297/341
• CPC Class Codes: A47C 1/0325 by means of clamps or friction locking members
• CPC Class Codes: A47C 1/03294 slidingly movable in the base frame, e.g. by rollers
• CPC Class Codes: A47C 7/407 of collapsible type
• CPC Class Codes: B60N 2/20 the back-rest being tiltable, e.g. to permit easy access B60N2/04, B60N2/22 , B60N2/3002 take precedence
• CPC Class Codes: B60N 2/2209 by longitudinal displacement of the cushion, e.g. back-rest hinged on the bottom to the cushion and linked on the top to the vehicle frame
• CPC Class Codes: B64D 11/064 Adjustable inclination or position of seats

Claims

1. A PASSENGER SEAT COMPRISING A BASE, A LOWER SEAT FRAME FIXED ON SAID BASE, AN UPPER SEAT FRAME MOVABLE LONGITUDINALLY WITH RESPECT TO SAID LOWER SEAT FRAME, UPRISING ARMS ON THE REAR OF SAID UPPER AND LOWER SEAT FRAMES, A SEAT BACK COMPRISING INTERCONNECTED MEMBERS, ONE OF SAID BACK MEMBERS BEING SWINGABLE CONNECTED TO THE LOWER FIXED SEAT FRAME ARMS AND MEANS PIVOTALLY CONNECTING THE OTHER BACK MEMBER TO THE UPPER SEAT FRAME ARMS SUBSTANTIALLY ABOVE THE HORIZONTAL PLANE LEVEL OF THE UPPER SEAT FRAME, SAID LAST-NAMED MEANS COMPRISING TELESCOPIC MEMBERS PERMITTING LONGITUDINAL MOVEMENT OF THE UPPER SEAT FRAME WITH RESPECT TO THE LOWER SEAT FRAME AND THE SWINGABLE CONNECTED BACK MEMBER WHEREBY THE PIVOTAL CONNECTION MEANS BETWEEN THE BACK MEMBER AND THE UPPER SEAT FRAME ARMS IS CAUSED TO TRAVEL IN A RIGHT LINE PARALLEL TO SAID UPPER SEAT FRAME DURING LONGITUDINAL MOVEMENT OF SAID SEAT FRAME SO THAT THE SEAT BACK GIVES CONTINUAL SUPPORT FOR THE LUMBAR REGION OF A PASSENGER IN SAID SEAT.