Patents by Inventor Kjartan Alvestad

Kjartan Alvestad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6679556
    Abstract: In an adjustable arrangement for reclining or seating furniture, where the furniture has two or more mutually adjustable articulated members (R, S, F), which together form an adjustable frame for support of a mattress, cushion, upholstery or the like, where the adjustable frame is mounted in a support member (A) by means of horizontal axles/dowels, stays/sliding elements or the like, which constitute fulcrums (2, 3, 5) for the mutually adjustable, articulated members (R, S, F), where the back member (R) has a fixed fulcrum (2) in relation to the support member (A), located at a distance from the linkage (1) to the seat member, and where the adjustment of the furniture's respective articulated members is performed by means of a spring mechanism (17) which is arranged between an arm (6) on the underside of the back member (R) and a point on the support member (A), the furniture's seat member (S) is designed with an extension member (T, 8, 12) preferably arranged between the seat member and the back me
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: January 20, 2004
    Inventor: Kjartan Alvestad
  • Patent number: 6494538
    Abstract: The adjustment of the angular setting is provided between the parts (R, S, F) in a reclining or sealing article of furniture, which has two or more mutually adjustable, articulated parts which together form the frame of the article, and where the frame is mounted in a support member (A) by of transverse axes or axis journals (2, 3, 5), the back member's (R) axis (2) is securely mounted in a pivot bearing (11). The axes (3, 5) of the remaining part(s) (s/ or S and F respectively) are movably mounted in the support member's longitudinal direction. The back member's (R) axis (2) is mounted at a distance from the joint connection (1) of the seat member (S).
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: December 17, 2002
    Inventor: Kjartan Alvestad
  • Patent number: 6247753
    Abstract: A piece of reclining or seating furniture is designed with two or more mutually adjustable articulated members (R, S, F), which together form an adjustable frame for support of a mattress, cushion, upholstery or the like. The adjustable frame is mounted in a support member (A) by means of horizontal axles/dowels, stays, sliding elements or the like, which constitute fulcrums (2, 3, 5) for the mutually adjustable, articulated members (R, S, F). The back member (R) has a fixed fulcrum (2) in relation to the support member (A), located at a distance from the linkage (1) to the seat member. The adjustment of the furniture's respective articulated members is performed via a fixed, downwardly projecting arm (6) mounted on the underside of the back member (R), in the area below the back member's fulcrum (2).
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: June 19, 2001
    Inventor: Kjartan Alvestad
  • Patent number: 6138303
    Abstract: A system for adjustment of the angular setting between parts in a bed or another reclining or sitting article of furniture, in which the article has two or more mutually adjustable, articulated parts, and where the frame is mounted in a support member by means of transverse axles or axis journals. A pivot axis (2) of a back member is fixed against translation in a pivot bearing (11) on the support member. The axes (3, 5) of the remaining part(s) are movably mounted in the longitudinal direction of the support member. The back member axis (2) is mounted at a distance from the joint connection (1) of the seat member (S).
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: October 31, 2000
    Inventor: Kjartan Alvestad