Patents by Inventor David Frank Fredrickson

David Frank Fredrickson 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).

  • Publication number: 20030030292
    Abstract: A device for lifting, carrying, and otherwise moving objects and articles such as appliances, boxes, cartons, building materials, construction materials, gardening products, furniture, landscaping supplies, lumber, and metal or non-metal piping, In one form, the device includes a base, a handle and at least two handle grips to provide the individual with greater flexibility in positioning his or her hands on the device to lift or carry a given object. In another form, the device is provided with a base, a handle and at least one moveable handle grip which again provides the individual with greater flexibility in locating his or her hands relative to the object to be lifted. In a further form, the device includes a base, a handle and at least one handle grip. In this form, at least one of the elements of the device is removable from the other components to allow an individual to readily substitute parts or vary the position of one part relative to another to make a given lifting or carrying task easier.
    Type: Application
    Filed: September 30, 2002
    Publication date: February 13, 2003
    Inventor: David Frank Fredrickson
  • Patent number: 6478352
    Abstract: A device for lifting, carrying, and otherwise moving objects and articles such as appliances, boxes, cartons, building materials, construction materials, gardening products, furniture, landscaping supplies, lumber, and metal or non-metal piping, In one form, the device includes a base, a handle and at least two handle grips to provide the individual with greater flexibility in positioning his or her hands on the device to lift or carry a given object. In another form, the device is provided with a base, a handle and at least one moveable handle grip which again provides the individual with greater flexibility in locating his or her hands relative to the object to be lifted. In a further form, the device includes a base, a handle and at least one handle grip. In this form, at least one of the elements of the device is removable from the other components to allow an individual to readily substitute parts or vary the position of one part relative to another to make a given lifting or carrying task easier.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: November 12, 2002
    Inventor: David Frank Fredrickson
  • Publication number: 20020105198
    Abstract: A lifting device includes a base comprising a horizontal portion for engagement with the bottom of an object to be lifted and a vertical portion for engagement with the side of the object. A handle is secured to the base and extends vertically upwardly from the vertical portion. A handle grip is mounted on the handle for selective engagement to impose an upwardly directive force on the handle and the base, thereby lifting an object mounted on the base in engagement with horizontal and vertical portions thereof. The handle grip may be selectively positioned or located vertically relative to the base. The handle grip may be tubular in construction to facilitate the receipt of a bar therethrough thereby facilitating lifting by multiple persons. The lifting device maybe provided with brackets, slots, apertures, and/or rings for receiving straps or ropes to secure objects to be lifted to the lifting device.
    Type: Application
    Filed: February 7, 2001
    Publication date: August 8, 2002
    Inventor: David Frank Fredrickson
  • Patent number: 5941292
    Abstract: A tool 10 for rock breaking, log splitting and similar operations includes a plate 12 having a plurality of identical apertures 14 formed therethrough. A frame 16 comprised of a skirt 18 formed from lengths of angle iron and a plurality of legs also formed from lengths of angle iron supports the plate 12 in a substantially horizontal orientation above a workpiece. An implement 22 includes a first end for engaging the workpiece and a second end to be engaged with a hammer. The implement is further characterized by dimensions closely matched to those of the apertures formed in the plate. The plate 12positions the implement 22 in engagement with the workpiece and maintains the implement 22 in a substantially vertical orientation for engagement by an actuating hammer.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: August 24, 1999
    Inventor: David Frank Fredrickson
  • Patent number: D437752
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: February 20, 2001
    Inventor: David Frank Fredrickson
  • Patent number: D448980
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: October 9, 2001
    Inventor: David Frank Fredrickson
  • Patent number: D478257
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: August 12, 2003
    Inventor: David Frank Fredrickson
  • Patent number: D404985
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: February 2, 1999
    Inventor: David Frank Fredrickson
  • Patent number: D412270
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: July 27, 1999
    Inventor: David Frank Fredrickson