Patents by Inventor John T. Gerritsen

John T. Gerritsen 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: 7066457
    Abstract: An apparatus for securing a workpiece comprising first and second clamp members, and a transportable elongate member to which the clamp members are mounted and are operable for being shifted between work engaging and work releasing positions. In one form, the apparatus may be configured with clamp members capable of being fully removed from the elongate member and placed back thereon while maintaining the operability of the clamp members. At least one of the clamp members may be capable of being mounted on the elongate member in a plurality of directions, or may include jaw assemblies which are removable from and/or rotatable with respect to the elongate member. In addition, the apparatus may include a base for securing the base to a work surface and a catch for securing the elongate member to the base. In another form, the base may be configured to receive and secure the elongate member in a plurality of directions.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: June 27, 2006
    Assignee: WMH Tool Group, Inc.
    Inventors: John T. Gerritsen, William J. Phillips
  • Patent number: 7047585
    Abstract: A power tool in accordance with the invention includes a housing having a handle connected to the housing in at least one position and extending about the rear of the housing with first and second end portions positioned at least in part off the sides of the housing such that the handle allows an operator a range of locations about the housing to facilitate an effective two-handed grip to maintain control over the power tool. The power tool may include an actuator, such as a switch, to regulate power supplied to the tool's motor, and may automatically shift to deactivate the power tool when an unintentional impact above a predetermined magnitude is received by the power tool. The power tool may also include a recess for maintaining an accessory tool and may be designed so that it is both statically and dynamically balanced in order to provide a balanced tool both at rest and during operation, and in order to reduce the amount of vibration experienced by an operator during use of the tool.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: May 23, 2006
    Assignee: WMH Tool Group, Inc.
    Inventors: Christopher T. Boyer, John T. Gerritsen, Mark R. Lytell, Joel G. Delman, Peter J. Kopec
  • Publication number: 20040140602
    Abstract: An apparatus for securing a workpiece comprising first and second clamp members, and a transportable elongate member to which the clamp members are mounted and are operable for being shifted between work engaging and work releasing positions. In one form, the apparatus may be configured with clamp members capable of being fully removed from the elongate member and placed back thereon while maintaining the operability of the clamp members. At least one of the clamp members may be capable of being mounted on the elongate member in a plurality of directions, or may include jaw assemblies which are removable from and/or rotatable with respect to the elongate member. In addition, the apparatus may include a base for securing the base to a work surface and a catch for securing the elongate member to the base. In another form, the base may be configured to receive and secure the elongate member in a plurality of directions.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 22, 2004
    Inventors: John T. Gerritsen, William J. Phillips
  • Publication number: 20030182749
    Abstract: A power tool in accordance with the invention includes a housing having a handle connected to the housing in at least one position and extending about the rear of the housing with first and second end portions positioned at least in part off the sides of the housing such that the handle allows an operator a range of locations about the housing to facilitate an effective two-handed grip to maintain control over the power tool. The power tool may include an actuator, such as a switch, to regulate power supplied to the tool's motor, and may automatically shift to deactivate the power tool when an unintentional impact above a predetermined magnitude is received by the power tool. The power tool may also include a recess for maintaining an accessory tool and may be designed so that it is both statically and dynamically balanced in order to provide a balanced tool both at rest and during operation, and in order to reduce the amount of vibration experienced by an operator during use of the tool.
    Type: Application
    Filed: January 6, 2003
    Publication date: October 2, 2003
    Inventors: Christopher T. Boyer, John T. Gerritsen, Mark R. Lytell, Joel G. Delman, Peter J. Kopec
  • Patent number: 5421091
    Abstract: The adjustable guide shoe is mounted on a support bar which is received within an elongated slot formed in the nose section of the power saw. The support bar is provided with plural sets of opposed cam faces which are provided in side-by-side pairs spaced longitudinally of the bar. A manually operated plunger is mounted in the nose section and is spring biased toward the support bar. The plunger bar includes cam surfaces adapted for complimentary wedging engagement with selected sets of cam faces on the support bar to achieve a self-locating function for the support and guide shoe mounted thereon.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: June 6, 1995
    Assignee: S-B Power Tool Company
    Inventor: John T. Gerritsen, Jr.
  • Patent number: 4658548
    Abstract: A unitary extruded weatherstrip for doors and the like including a flexible loop having a floating bulb therewithin connected to the wall of the loop and functioning as a secondary seal. The floating bulb under compression, prevents collapse of the loop inward or outward to provide an effective seal. The failure of the weaterstrip outwardly to collapse prevents its protrusion past the face of the door whereby to retain the aesthetic appearance of the installation. The same weatherstrip configuration can be employed on both the hinge and the lockside portions of the frame as well as along the header thereof. A rigid depending portion flange can be provided as a part of the weatherstrip extrusion to permit installation into the saw-kerf of wood door frames, for example, without requiring special tools.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: April 21, 1987
    Assignee: Jarrow Products Inc.
    Inventor: John T. Gerritsen
  • Patent number: 4592180
    Abstract: A magnet support and retainer for post-construction installed interior storm windows formed as a unitary plastic extrusion having a U-shaped pane-receiving portion, a rigid magnet mounting portion and a connecting portion, preferably flexible, formed therebetween. The magnet mounting portion includes an elongate rigid planar strip having a pair of depending edge flanges defining a cavity for tightly receiving a strip magnet of generally rectangular cross-section and an intermediate depending flange including barb portions adapted to be received tightly within a facing groove formed in the magnet. The opposite magnet face is engaged upon a ferromagnetic strip or sash surface for installation of the storm window. Resilience is afforded sufficient to compensate for irregularities in the pane or in the cooperating ferromagnetic surface when the storm window is installed. The magnet is force fitted in the cavity enabling easy assembly.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: June 3, 1986
    Assignee: Jarrow Products, Inc.
    Inventor: John T. Gerritsen
  • Patent number: 4575966
    Abstract: A magnetically sealed sliding window system including a perimetric frame including header and base portions each defining a narrow channel for receiving a glazing pane and an adjacent second channel. A sliding panel is seated within the second channel. Longitudinal magnets are secured on the inner face of the sliding panel. Where the perimetric frame is formed of nonmagnetic material, magnets also are secured along the header and base second channel sections. No magnets are required on the perimetric frame when same is formed of magnetic material such as steel. In sealed condition, the sliding panel is positioned above the floor of the base channel with the panel magnetically held. The magnets have longitudinally extending magnetic poles establishing a magnetic coupling between adjacent unlike poles. The height of the sliding panel is less than the height of the frame.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: March 18, 1986
    Assignee: Jarrow Products, Inc.
    Inventor: John T. Gerritsen
  • Patent number: 4305230
    Abstract: A retainer for use in a refrigerator door or the like in which insulative material is foamed during a foaming process in the interior of the door. The door or the like is formed of separate shell and pan portions which have edges which are inserted in respective opposing slots of the retainer. Fins are provided on surfaces of the retainer opposite the shell and pan portion edges to form a seal therewith which retains the insulative material within the interior of the door during the foaming process. The fins are made of a material which is softer and more flexible than the material of the remainder of the retainer and the fins eliminate a need to clean foamed insulative material which leaks through the seams between the retainer and the shell and pan portions during the foaming process from the exterior surfaces of the shell and pan portions.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: December 15, 1981
    Assignee: Jarrow Products, Inc.
    Inventor: John T. Gerritsen
  • Patent number: D476119
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: June 17, 2003
    Assignee: WMH Tool Group, Inc.
    Inventors: Christopher T. Boyer, John T. Gerritsen