Patents by Inventor Hans-Erik West

Hans-Erik West 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).

  • Backrest fixation system and an electrically powered wheelchair comprising the same
    Patent number: 9795527
    Abstract: A backrest fixation system (1) for a wheelchair, wherein the backrest fixation system (1) comprises a seat frame member (3) having a groove side (3a) provided with a first groove (5) having first groove retaining surfaces, which seat frame member (3) has a first lateral side (3b) and a second lateral side (3c) parallel to each other and which define lateral sides of the groove side (3a), a first groove insert member (9) arranged in the first groove (5) and retained in the first groove (5) by means of the first groove retaining surfaces, a backrest attachment member (15) having a first backrest attachment member through-opening (15a), a first fastener (17), and a reinforcement member (13) arranged between the backrest attachment member (15) and the groove side (3a) of the seat frame member (3), which reinforcement member (13) has a first leg (13a) and a second leg (13b), wherein the first leg (13a) extends along the first lateral side (3b) of the seat frame member (3) and the second leg (13b) extends along the
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: October 24, 2017
    Assignee: PERMOBIL AB
    Inventors: Rune Stenstrom, Hans-Erik West
  • BACKREST FIXATION SYSTEM AND AN ELECTRICALLY POWERED WHEELCHAIR COMPRISING THE SAME
    Publication number: 20160367418
    Abstract: A backrest fixation system (1) for a wheelchair, wherein the backrest fixation system (1) comprises a seat frame member (3) having a groove side (3a) provided with a first groove (5) having first groove retaining surfaces, which seat frame member (3) has a first lateral side (3b) and a second lateral side (3c) parallel to each other and which define lateral sides of the groove side (3a), a first groove insert member (9) arranged in the first groove (5) and retained in the first groove (5) by means of the first groove retaining surfaces, a backrest attachment member (15) having a first backrest attachment member through-opening (15a),a first fastener (17), and a reinforcement member (13) arranged between the backrest attachment member (15) and the groove side (3a) of the seat frame member (3), which reinforcement member (13) has a first leg (13a) and a second leg (13b), wherein the first leg (13a) extends along the first lateral side (3b) of the seat frame member (3) and the second leg (13b) extends along the
    Type: Application
    Filed: February 26, 2015
    Publication date: December 22, 2016
    Inventors: Rune Stenstrom, Hans-Erik West