Walker Patents (Class D12/130)
  • Patent number: 4620714
    Abstract: The present invention discloses a wheelstand for handicapped or immobile persons having a generally rectangular main frame rotatably supported on a ground support surface by relatively small wheels while larger wheels are rotatably mounted to the frame and manually rotated by the user in order to propel the frame. A generally planar body support structure is pivotally carried by the frame so that the angular position of the support structure can be varied with respect to the frame while still enabling the user to grip the larger wheels and propel the wheelstand.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: November 4, 1986
    Inventor: Daniel W. Davis
  • Patent number: 4189164
    Abstract: A convertible vehicle for babies consisting of a frame supported upon caster wheels, interchangeable platforms are attached to the frame using compression coil springs, removably secured and interchangeable stroller handle and handlebar attachments connect to upwardly turned ends of front frame sections, side frame sections support stop mount and extension arm attachments.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: February 19, 1980
    Inventor: Donald K. Moorer
  • Patent number: D246036
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: October 11, 1977
    Inventor: Morton I. Thomas
  • Patent number: D246302
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: November 8, 1977
    Inventor: Morton I. Thomas
  • Patent number: D249669
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: September 26, 1978
    Assignee: Kassai Kabushikikaisha
    Inventor: Kenzou Kassai
  • Patent number: D251420
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: March 27, 1979
    Assignee: Kassai Kabushiki Kaisha
    Inventor: Kenzou Kassai
  • Patent number: D254610
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: April 1, 1980
    Assignee: Kassai Kabushiki Kaisha
    Inventor: Kenzou Kassai
  • Patent number: D268017
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: February 22, 1983
    Assignee: Temco Products, Inc.
    Inventor: Morton I. Thomas
  • Patent number: D268404
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: March 29, 1983
    Assignee: Temco Products, Inc.
    Inventor: Morton I. Thomas
  • Patent number: D268405
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: March 29, 1983
    Inventors: Ulf M. Hanses, Kerstin M. Hagland
  • Patent number: D277561
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: February 12, 1985
    Inventor: Ronald Erfurth
  • Patent number: D281771
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: December 17, 1985
    Inventor: Shirley B. Webb
  • Patent number: D283884
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: May 20, 1986
    Inventor: Ronald Erfurth
  • Patent number: D284647
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: July 15, 1986
    Inventor: Daniel R. Stockdell
  • Patent number: D286032
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: October 7, 1986
    Assignee: J. C. Penney Company, Inc.
    Inventors: Cooper C. Woodring, Francis W. MacGregor, Robert H. Bruno
  • Patent number: D286625
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: November 11, 1986
    Inventor: Michael Brennan
  • Patent number: D289507
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: April 28, 1987
    Assignee: Rolf Ahlbergs Mekaniska Verkstad AB
    Inventor: Jan-Erik Danielsson
  • Patent number: D291791
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: September 8, 1987
    Inventor: Lewis Bean
  • Patent number: D292076
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: September 29, 1987
    Assignee: Theraped, Inc.
    Inventor: Gilbert E. Peters
  • Patent number: D292386
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: October 20, 1987
    Inventors: Sandra C. Brown, Benny L. Brown
  • Patent number: D293663
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: January 12, 1988
    Inventor: Ronald Erfurth
  • Patent number: D295155
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: April 12, 1988
    Inventor: Ronald Erfurth
  • Patent number: D295397
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: April 26, 1988
    Assignee: Graco Children's Products, Inc.
    Inventors: Alan Brownlie, Nathanael Saint, Devon Siesholtz
  • Patent number: D301440
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: June 6, 1989
    Inventor: Robert M. Conley
  • Patent number: D303512
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: September 19, 1989
    Assignee: Stiftelsen Pileprodukter
    Inventor: Per Olofsson
  • Patent number: D305108
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: December 19, 1989
    Assignee: Century Products Company
    Inventor: Martin Blumenthal
  • Patent number: D305416
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: January 9, 1990
    Assignee: Graco Children's Products
    Inventors: Samuel E. Rohrer, Ronald R. Hoffman
  • Patent number: D305750
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: January 30, 1990
    Inventor: Richard E. Cone
  • Patent number: D308657
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: June 19, 1990
    Inventor: Stephen Hu
  • Patent number: D308841
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: June 26, 1990
    Inventors: Shane Cummings, Clay R. Coleman
  • Patent number: D310055
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 21, 1990
    Inventor: Derek L. Dawkins
  • Patent number: D310646
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: September 18, 1990
    Assignee: Guardian Products, Inc.
    Inventor: Eric P. Rose
  • Patent number: D312061
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: November 13, 1990
    Inventor: Jerome R. Smith
  • Patent number: D322874
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: December 31, 1991
    Inventor: Donald V. Smith
  • Patent number: D324504
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: March 10, 1992
    Inventor: Flora L. Olsen
  • Patent number: D326250
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: May 19, 1992
    Inventor: Beverley J. Oliver
  • Patent number: D329833
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: September 29, 1992
    Assignee: Etac AB
    Inventors: Karl A. Andersson, Morgan Ferm
  • Patent number: D330637
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: November 3, 1992
    Assignee: Combi Corporation
    Inventors: Takehiko Takahashi, Jun Taketani
  • Patent number: D330878
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: November 10, 1992
    Inventor: Louis A. Donaldson
  • Patent number: D331209
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: November 24, 1992
    Inventors: Estelle S. Short, Virginia L. Short
  • Patent number: D336944
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: June 29, 1993
    Inventor: Homero Licon
  • Patent number: D338434
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: August 17, 1993
    Inventors: Earl A. Muff, Joseph M. Crowley
  • Patent number: D339555
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: September 21, 1993
    Inventors: Geoffrey C. Seibel, Beth Ann Seibel
  • Patent number: D340012
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: October 5, 1993
    Inventor: Paul T. Azzarelli
  • Patent number: D340210
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: October 12, 1993
    Assignee: Century Products Company
    Inventor: Betsy Veness
  • Patent number: D341109
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: November 9, 1993
    Inventor: Ruey-Chang Chuang
  • Patent number: D343150
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: January 11, 1994
    Inventor: Thomas W. Cunningham
  • Patent number: D344917
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: March 8, 1994
    Assignee: Dolomite Svenska AB
    Inventors: Sven I. Kjell, Anders Ahlbertz, Kjell Henrikson
  • Patent number: D353566
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: December 20, 1994
    Assignee: Video Technology Industries, Inc.
    Inventors: Chi K. W. Chow, Frederick L. T. Tsang
  • Patent number: D355629
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: February 21, 1995
    Inventor: Sharon L. Kulesza