Patents Assigned to NorthPole, Ltd.
  • Patent number: 7114205
    Abstract: A collapsible bed frame (18) for supporting a mattress, the collapsible frame (18) having a number of frame members (32). A number of pivots (34) connect pairs of the frame members (32) at the midpoints of the frame members (32) to make a number of scissor pairs (35). Pivot assemblies (36) pivotally attach the upper ends of the frame members (32) to upper connector assemblies (40), and pivotally attach lower ends of the frame members (32) to feet (38), thus connecting the scissor pairs (35) to form an extended scissors-frame assembly (33). The upper connector assemblies (40) form a support surface for a mattress.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 3, 2006
    Assignee: NorthPole Ltd.
    Inventor: Harrison Choi
  • Patent number: 6752452
    Abstract: A collapsible reclining chair (10, 100, 200), has a frame assembly (16) which includes angled frame members (32), the upper ends (37) of the angled frame members (32) being pivotally attached to upper connectors (136,138), and the lower ends (36) being pivotally attached to feet (30). The frame assembly (16) as a whole expands outwardly from a central area (8). The frame assembly (16) also includes upright members (34), and a support surface (18), having a back portion (15). The lower ends (38) of each of the upright members (34) are attached to one of the angled members (32) by a reversible joint (39), so that the reclining chair (10, 100, 200) is movable from an upright position (12) when the reversible joints (39) are in a first position, to a reclining position (14) when the reversible joints (39) have been reversed to a second position.
    Type: Grant
    Filed: September 29, 2001
    Date of Patent: June 22, 2004
    Assignee: NorthPole Ltd
    Inventors: Sang B. Choi, Ho Sik Byun
  • Patent number: 6711761
    Abstract: An inclining collapsible bed (200) including a mattress (214) and a support frame (218), including a number of frame members (32) where the upper ends of the frame members (32) are pivotally attached to upper connector assemblies (40), and the lower ends are pivotally attached to feet (38). The support frame (218) includes an inclining portion (206) having at least one inclining support member (208) and at least one angle retention mechanism (220), which is preferably an adjustable clip (222). The bed (200) is configured to optionally use an air mattress (14), which can be attached to the frame (214) so that the bed frame (218) is self-expanding in response to the inflation of the air mattress (14). Also an inclining collapsible bed frame (218).
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: March 30, 2004
    Assignee: NorthPole, Ltd.
    Inventor: Harrison Choi
  • Patent number: 6675414
    Abstract: A sleeping bag with a replaceable air mattress (10), where the sleeping bag (12) includes a top layer (20) and a bottom layer (22). The top layer (20) has a top layer opening edge (24) and a top layer sealed edge (26), and the bottom layer (22) has a bottom layer opening edge (28) and a bottom layer sealed edge (30). The top layer opening edge (24) and the bottom layer opening edge (28) are releasably fastened along some portion of their length by a first fastener (34) which is attached at a first attachment site (37). The bottom layer (22) further includes a second attachment site (38) for an upper portion (39) of a second fastener (40). The air mattress has a perimeter (15) and includes an inflatable portion (18) and a peripheral extension (16). The peripheral extension (16) includes a third attachment site (44) for a lower portion (41) of a second fastener (40). Upper (39) and lower portions (41) of the second fastener (40) releasably fasten the air mattress (14) to the sleeping bag (12).
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: January 13, 2004
    Assignee: Northpole, Ltd.
    Inventor: Samuel F. Lamke
  • Patent number: D454609
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: March 19, 2002
    Assignee: NorthPole, Ltd.
    Inventors: Thomas Meyerhoffer, John Groff
  • Patent number: D455301
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: April 9, 2002
    Assignee: NorthPole, Ltd.
    Inventor: Robert R. Cantwell