Patents by Inventor Donald Gringer

Donald Gringer 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: 20040045167
    Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Publication number: 20030110641
    Abstract: A contour scraper has an elongated handle having an upper curved convex surface and two arcuate elongated concave lower surfaces and outwardly proximately flared sides to provide a grip construction, and a transversely distally disposed blade receiving surface. A two-edged blade is readily reversibly detachably attached to the handle without the need for removing a locking screw. The handle grip has an over molded soft elastomeric cover. The handle is formed with a distal end slotted recess to slidably receive a file. A rare earth magnet of high magnetic strength magnetically holds and stows the file in the handle. The handle is formed with a through hole to access the magnetically stowed file for removal through the end slot.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Inventor: Donald Gringer
  • Publication number: 20030110570
    Abstract: A scraper has an arcuately contoured elastomeric molded over plastic ergonomic handle. The scraper handle has a proximate end slot and recess. A permanent rare earth magnet is fixedly disposed at the bottom wall of the recess. A ferro-metallic file is slidably disposed and seated in the recess with the file contactingly engaging the magnet. The handle is formed with a vertically disposed through hole so that the user can access the file and forcibly slidably remove the file to sharpen the scraper blade edge. The scraper has a 4-way blade, formed with two spoon shaped blades for fine scraping and two flat folded edges for rough scraping. All four edges are ground to the same large radius. The scraper is a pull scraper.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Inventor: Donald Gringer
  • Patent number: 6568087
    Abstract: A scraper has an arcuately contoured elastomeric molded over plastic ergonomic handle. The scraper handle has a proximate end slot and recess. A permanent rare earth magnet is fixedly disposed at the bottom wall of the recess. A ferro-metallic file is slidably disposed and seated in the recess with the file contactingly engaging the magnet. The handle is formed with a vertically disposed through hole so that the user can access the file and forcibly slidably remove the file to sharpen the scraper blade edge. The scraper has a 4-way blade, formed with two spoon shaped blades for fine scraping and two flat folded edges for rough scraping. All four edges are ground to the same large radius. The scraper is a pull scraper.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: May 27, 2003
    Inventor: Donald Gringer
  • Patent number: 6530098
    Abstract: A taping knife includes a continuous shaft having a blade on a first end thereof, and a hammer on a second end thereof. A handle surrounds the shaft with the blade extending from one end thereof, and the hammer extending from the other end thereof. The handle preferably is constructed with a molded inner core and a soft molded rubber overlay. The hammer includes a hammering surface generally perpendicular to a central axis of the handle. The inner core is preferably constructed of a molded thermoplastic, and the overlay is preferably constructed of an injection molded rubber. The handle may include a bit storage slot for receiving and storing a screwdriver bit. The overlay may include a plurality of flexible fingers adjacent to the bit storage slot for securing a screwdriver bit in the slot. The hammer may include a sleeve for receiving a screwdriver bit with a working portion of the bit extending from the sleeve.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: March 11, 2003
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: 6487778
    Abstract: An improved automatically retractable cutting device includes (a) a housing having a guide slot, with one or more notches disposed in the guide slot, (b) a return spring within the housing, and (c) a blade carrier disposed within the housing and biased by the return spring. The blade carrier includes a thumb piece extending through the guide slot, the thumb piece having a protuberance adapted to at least partially frictionally engage the notch during movement of the thumb piece along the guide slot to enable the thumb piece to be held in position adjacent to the notch with reduced force. Each notch may include a forward direction ramping surface, whereby reduced force is required to prevent further blade extension, and/or a reverse direction ramping surface, whereby reduced force is required to prevent blade retraction. Each ramping surface is preferably angled at less than ninety degrees.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: December 3, 2002
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: 6058607
    Abstract: An automatically retractable utility knife includes a housing and a blade carrier having a molded return spring, which may be integral with the blade carrier. The return spring is serpentine shaped and constructed of a resilient thermoplastic. The housing includes front and rear guide slots, with the blade carrier having a thumb piece extending through the front guide slot and a thumb piece extending through the rear guide slot for enabling the cutting device to be used by right or left-handed persons. The blade carrier may include a snap-off extension for limiting forward travel of the blade carrier with the snap-off extension in place. A method of manufacturing a utility knife includes the steps of providing a housing having an interior adapted to receive either an indexed blade carrier or an automatically retractable blade carrier, and assembling the housing with either an indexed blade carrier or an automatically retractable blade carrier therein.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: May 9, 2000
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: 5930925
    Abstract: A display apparatus for an object to be displayed, e.g., a brush, in which the object includes a slot on its external surface. A display card is sized to be inserted into the slot and is removably retained within the slot. Adhesive, or a friction fit, is preferably used to removably attach the display card to the object. In one embodiment, the object to be displayed includes at least one protuberance extending partially into the slot. The display card is sized to be frictionally retained in the slot by the protuberance. The display card may include a folded over portion for increasing the thickness of the display card when it is inserted into the slot. The display card is shaped to correspond to a shape of the object to be displayed when the display card is inserted into the slot, and includes a hole therethrough for enabling the display card to be hung from a display rack.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: August 3, 1999
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: 5813121
    Abstract: An automatically retractable utility knife includes a housing and a blade carrier having an integrally molded return spring. The return spring is serpentine shaped and constructed of a resilient thermoplastic. A method of manufacturing a utility knife includes the steps of providing a housing having an interior adapted to receive either an indexed blade carrier or an automatically retractable blade carrier, and assembling the housing with either an indexed blade carrier or an automatically retractable blade carrier therein.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: September 29, 1998
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: 5809605
    Abstract: A squeegee assembly includes i) a handle having a male blade-mounting portion; and ii) a dual-extruded squeegee blade having a resilient squeegee portion and a channel. The channel is constructed of a generally semi-rigid material and is sized and shaped to be slidably mounted to the male blade-mounting portion of the handle. The handle is constructed of a molded thermoplastic or a stamped metal and includes a gripping area. The dual-extruded squeegee blade is constructed of compatible vinyls, elastomers, or other thermoplastics. The squeegee portion is chevroned, with the chevron defining a pair of cleaning members, so that the squeegee blade is reversible. In an alternative embodiment, the squeegee blade includes a sponge extruded therewith. In a further alternative embodiment, the squeegee blade includes a second channel extruded therewith and an extruded sponge adapted to be slidably insertable into the second channel.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: September 22, 1998
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D441961
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: May 15, 2001
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D441962
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: May 15, 2001
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D449739
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 30, 2001
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D453251
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: January 29, 2002
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: D454000
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: March 5, 2002
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D468989
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: January 21, 2003
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, John Lonczak
  • Patent number: D479374
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: September 2, 2003
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: D479375
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: September 2, 2003
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: D388307
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: December 30, 1997
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D411429
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: June 22, 1999
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer