×

Shell structure for use with a chair having synchronously moving seat and seat back

  • US 5,314,240 A
  • Filed: 12/27/1991
  • Issued: 05/24/1994
  • Est. Priority Date: 05/21/1991
  • Status: Expired due to Fees
First Claim
Patent Images

1. A shell structure for use with a chair having a synchronously moving seat and seat back, the shell structure for the seat comprising:

  • a bottom portion and a back portion of the same material, with a curved connecting portion therebetween;

    said curved connecting portion having at least two slots extending between said bottom portion and said back portion, wherein a portion of said curved connecting portion sandwiched between said slots has a greater curvature than other portions of said curved connecting portion;

    sideways notches extending outwardly from the outermost ones of said slots adjacent said bottom portion; and

    U-shaped bent portions extending out of the plane of said curved connecting portion and outwardly from said notches.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×