Spring Leaf Or Spring Rod Armrest Patents (Class 297/290)
  • Patent number: 8622473
    Abstract: A chair includes a seat and a supporting structure associated for positioning of the seat in an orientation in which the seat has a downward inclination towards its front edge. The supporting structure includes an elongate member on each side of the chair, each member extending substantially continuously between the seat and a rearward region of the chair via a floor-engaging region of the supporting structure. Each elongate member has a generally loop-shaped configuration, with the seat end region of the elongate member overlying the opposite end region of the elongate member, and has an inherent resilience with a bias in which the seat end region is spaced from the opposite end region in the unoccupied state of the chair and the seat has the desired forwardly-downward inclination, wherein the resilience is selected such that the seat end region approaches or comes into engagement with the opposite end region when the chair is occupied.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: January 7, 2014
    Inventor: Susan Walsh
  • Patent number: 7997651
    Abstract: An improved knockdown chair having opposing substantially C shaped support arms, substantially L shaped tubular seating arrangement, sock type seating portion cover, front reinforcing member, and bottom reinforcing member, wherein each of the opposing substantially C shaped support arms are of laminate construction and have an upper arcuate arm support, front arcuate portion, and substantially straight bottom, the substantially L shaped tubular seating arrangement having a tubular seat back and tubular sitting portion telescopically interconnected one to the other, and wherein each of the opposing substantially C shaped support arms is opposingly removably fastened to the substantially L shaped tubular seating arrangement, the improvement comprising combination with each of the opposing substantially C shaped support arms of a substantially S shaped reinforcing member of laminate construction removably fastened to the upper arcuate arm support and the substantially straight bottom for reinforcing each of the
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: August 16, 2011
    Inventor: Ziming Shen
  • Patent number: 7775590
    Abstract: An improved knockdown chair having opposing substantially C shaped support arms, substantially L shaped tubular seating arrangement, sock type seating portion cover, front reinforcing member, and bottom reinforcing member, wherein each of the opposing substantially C shaped support arms are of laminate construction and have an upper arcuate arm support, front arcuate portion, and substantially straight bottom, the substantially L shaped tubular seating arrangement having a tubular seat back and tubular sitting portion telescopically interconnected one to the other, and wherein each of the opposing substantially C shaped support arms is opposingly removably fastened to the substantially L shaped tubular seating arrangement, the improvement comprising combination with each of the opposing substantially C shaped support arms of a substantially S shaped reinforcing member of laminate construction removably fastened to the upper arcuate arm support and the substantially straight bottom for reinforcing each of the
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: August 17, 2010
    Inventor: Ziming Shen
  • Patent number: 5810438
    Abstract: A one piece molded seating structure includes a seat portion, a back portion, and a pair of resilient support members interconnecting opposite side regions of the seat portion to opposite side regions of the back portion. The support members flex when a user leans rearwardly against the back portion to allow rearward tilting of the back portion relative to the seat portion.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: September 22, 1998
    Assignee: Herman Miller, Inc.
    Inventor: Thomas J. Newhouse
  • Patent number: 4971394
    Abstract: The swivel rocker is made of tubular construction, particularly for outdoor use. The seat frame is pivotally mounted about a vertical axis on a stationary base and includes a seat which is secured to a support by arm rests which are able to flex and thus impart a rocking action between the seat and support. The arm rests are curved with ends which are connected to rods which are rotatably mounted in guide tubes of the support.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: November 20, 1990
    Assignee: Telescope Casual Furniture Company
    Inventor: Robert D. Vanderminden
  • Patent number: 4856845
    Abstract: An armchair whose arms and backrest are joined by an elastic element, while the backrest extends well above the arms so that the pressure generated by the user leaning back against the backrest causes it to bend or deflect, thus improving comfort.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: August 15, 1989
    Assignee: Societe Pour la Transformation des Matieres Plastiques Stamp
    Inventor: Henry Massonnet
  • Patent number: 4790596
    Abstract: Chair having a frame formed of resilient rods bent to a U-shaped configuration for resiliently supporting a person sitting on the chair.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: December 13, 1988
    Inventor: Tessema D. Shifferaw