Patents by Inventor Walter E. Lisowski

Walter E. Lisowski 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: 5937473
    Abstract: An intake clearing tool for jet-powered aquatic vehicles has an elongated handle portion, attachment means at one end for receiving a complementary attachable finger-type rake head and a handle grip at the opposite end. The handle grip end is adapted to receive a 90.degree. extension handle to enable the rake tool to be manipulated from alongside or on board a vehicle. In the preferred embodiment, the elongated handle is extensible and includes a first part which is sealed at both ends to contain an air chamber therein so that the handle will be capable floating rather than sinking. The handle portion preferably made of at least two tubular plastic telescoping rods has an attachment means at one end preferably in the form of screw threads that receives a rake tool head with a corresponding screw attachment and the opposite end has a resilient handle grip that may include an over-the-wrist securing loop.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: August 17, 1999
    Inventor: Walter E. Lisowski
  • Patent number: 5594974
    Abstract: A releasable caster for use with a moveable structure having a bottom wall wherein the caster has a swivel connected yoke and stem with the yoke supporting a plastic wheel. The stem includes a manually operable spring biased rod that has an indentation between its ends and co-acts with a ball detent. A shell with a flange at its outer end is adapted to be received in an opening in the wall. The shell has an abutment, prefereably in the form of a groove with the upper edge forming an abutment which copperatively locks the ball detent or releases the ball when the rod is moved longitudinally or rotationally.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: January 21, 1997
    Assignee: James P. Wattron
    Inventors: James Wattron, Walter E. Lisowski
  • Patent number: 5347681
    Abstract: A releasable fifth wheel for use with a skateboard having an upwardly sloped tail portion cantilevered out beyond the rear race which includes a caster with swivel connected yoke and stem with the yoke supporting a plastic wheel. The stem includes a manually operable spring biased rod that has an indentation between its ends and co-acts with a ball detent. A pair of threadably engageable shells with flanges at their outer ends are adapted to be received in an opening in the skateboard tail. One of the shells has an internal groove which cooperatively locks the ball detent or releases the ball when the rod is moved longitudinally or rotationally.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: September 20, 1994
    Assignee: James P. Wattron
    Inventors: James P. Wattron, Walter E. Lisowski
  • Patent number: 5026016
    Abstract: A one-piece molded retainer clip is mountable onto any desired surface. The retainer clip includes a back wall for mounting to the surface and a raised front wall having a mounting button access slot formed therein. A clip finger having a resilient end portion extends from the back wall into the access slot to bear against the mounting button when inserted therein. The access slot has a pair of guide walls and overlying wall portions to engage and retain a flange of the mounting button. The clip finger preferably is biased against the mounting button and can include a projection for engagement with the mounting button or an electrical ground or a resilient biasing member.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: June 25, 1991
    Assignee: Helm Products, Inc.
    Inventor: Walter E. Lisowski
  • Patent number: 4799444
    Abstract: A rail clamp is provided comprising a pair of substantially identical opposing side pieces or members in which the side members have a means for slidably interlocking with one another at one end of the side members, a semicircular portion located in in approximately the middle of each side member, a hole for fastening the two side members together after they have interlocked around a rail, and a hole for mounting auxiliary equipment to the rail clamp. The interlocking end comprises a hooking end and a receiving end such that the hooking end of the first side member can slidably interlock with the receiving end of the opposing side member. The hooking end has a hooking lip which forms a hooking channel and the receiving end has a receiving lip which forms a receiving channel such that the hooking lip slides into the receiving channel and the receiving lip slides into the hooking channel when the two opposing side members are brought into a face-to-face relationship.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: January 24, 1989
    Assignee: Helm Products, Inc.
    Inventor: Walter E. Lisowski
  • Patent number: 4338875
    Abstract: A boats hardware system--especially, although not exclusively designed for pleasure boating--involves massive clamping parts fashioned from a plastic, which is light enough to float. The parts are shaped and proportioned to fit over and be clamped to a rail of a boat. Clamping is preferably accomplished by large head nuts which may be fully tightened responsive to finger pressure. A rubber or other friction forming plug or screw head may be used to increase the friction of immobilize the clamp on the boat rail. The various parts may be used together in different combinations to make a system which easily fits into place, even when bulky items are installed by one person. An important advantage of the invention is its ability to be mounted on a boat without requiring either an undue amount of time or any special tools.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: July 13, 1982
    Inventor: Walter E. Lisowski
  • Patent number: 4194459
    Abstract: A boats hardware system--especially, although not exclusively designed for pleasure boating--involves massive clamping parts fashioned from a plastic, which is light enough to float. The parts are shaped and proportioned to fit over and be clamped to a rail of a boat. Clamping is preferably accomplished by large head nuts which may be fully tightened responsive to finger pressure. A rubber or other friction forming plug or screw head may be used to increase the friction or immobilize the clamp on the boat rail so that it will not turn about the rail. For convenience of description the term "anti-torque" is used hereinafter to mean this non-turning immobilization. The various parts may be used together in different combinations to make a system which easily fits into place, even when bulky items are installed by one person. An important advantage of the invention is its ability to be mounted on a boat without requiring either an undue amount of time or any special tools.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: March 25, 1980
    Assignee: Helm Products, Inc.
    Inventor: Walter E. Lisowski
  • Patent number: D437679
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: February 20, 2001
    Inventors: Virginia Lisowski, Walter E. Lisowski
  • Patent number: D455162
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 2, 2002
    Assignee: Mid-West Screw Products, Inc.
    Inventor: Walter E. Lisowski
  • Patent number: D455766
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: April 16, 2002
    Assignee: Mid-West Screw Products, Inc.
    Inventor: Walter E. Lisowski
  • Patent number: D289162
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: April 7, 1987
    Inventor: Walter E. Lisowski
  • Patent number: D596018
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: July 14, 2009
    Inventor: Walter E. Lisowski
  • Patent number: D596019
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: July 14, 2009
    Inventor: Walter E. Lisowski
  • Patent number: D596020
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: July 14, 2009
    Inventor: Walter E. Lisowski
  • Patent number: D356881
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: March 28, 1995
    Inventor: Walter E. Lisowski
  • Patent number: D356882
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: March 28, 1995
    Inventor: Walter E. Lisowski