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: 20070256306
    Abstract: An improved scraping tool with a retractable safety guard, for removing debris and dirt from glass, tile and the like. The scraping tool comprises a housing formed of two separable housing portions and a guard member, and is adapted to securely retain a single- or double-edged blade between the housing portions. The separable housing portions are removably secured and held in sealed alignment by a plurality of securing elements, including a releasable housing lock mechanism. Within the housing, a scraping blade is held in a rigid, stationary position by a plurality of posts. A guard member, the ends of which form a pair of upper and lower blade shields, is positioned and secured in sliding engagement within the housing.
    Type: Application
    Filed: May 8, 2006
    Publication date: November 8, 2007
    Inventors: Donald Gringer, Yuan Cheng
  • Patent number: 7226205
    Abstract: A mixing device includes vanes arranged so that the outer edges of the vanes define a frusto-conical surface in order to facilitate improved circulation of the liquid being mixed. In one embodiment, the outer edges of the vanes are tapered outward to form the frusto-conical surface. In an alternative embodiment, the inner and outer edges of the vanes are aligned with each other, and the vanes are tilted relative to a central axis to form the frusto-conical surface. Turbines extend between the vanes and shaft for rotating the mixing device. The turbines are arranged to avoid inhibiting entry of liquids through the top and bottom of the mixing device. Feet extend downward from the bottom edge of the mixing device to facilitate mixing of liquids on the bottom of the container.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: June 5, 2007
    Assignee: Site-b Company
    Inventors: Donald Gringer, Yuan Fang Cheng, Howard Soled
  • Publication number: 20070017100
    Abstract: A cutting device includes (i) a housing having first and second separable portions, the first portion having a locking aperture, the second portion having an attachment aperture, and (ii) a locking apparatus for removably locking the first and second portions of the housing. The locking apparatus includes an attachment portion for being fixedly attached in the attachment aperture, and a locking arm adapted to be releasably locked into the locking aperture. The attachment aperture and locking aperture are correspondingly positioned so that the locking arm becomes aligned with the locking aperture when the first and second portions of the housing are aligned for assembly. The housing may be constructed of metal, and the locking apparatus constructed of plastic. The locking apparatus may also include a return spring and blade carrier integrally molded therewith.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 25, 2007
    Inventors: Donald Gringer, Yuan Cheng
  • Patent number: 7150102
    Abstract: In a preferred embodiment, the push-pull stripper-scraper comprises a single stripping blade and a quadruple-edged scraping blade. The stripping blade accommodates a sliding carrier plate which incorporates guide channels for sliding along the stripping blade. The carrier plate is adapted to retain the scraping blade, thus, the scraping blade moves in unison with the carrier plate as it shifts in position along the stripping blade. The carrier plate, stripping blade and scraping blade also include apertures through which a fastening means secures these respective components but which nevertheless selectively permits movement of the carrier plate along the stripping blade. Significantly, the device allows a user to switch between using the stripping blade and scraping blade, respectively, without changing tools. This is particularly advantageous when using the device in conjunction with an extension pole.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: December 19, 2006
    Assignee: Allway Tools, Inc
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: 7134576
    Abstract: An inventive pouring spout for containers of liquid, having a removable lid and a strip with magnets located thereon. The spout is selectively attachable and is fitted to the diameter of an opening of a particular container. In a preferred embodiment, the spout is fitted to the diameter of a paint can opening, where it may replace the typical lid of a paint can for the duration of its use. Essentially, the spout effectively prevents the entry of paint in the sealing groove of the paint can or on the sides of the can.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: November 14, 2006
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Publication number: 20060205331
    Abstract: A sander comprises a body member molded of polypropylene to which a soft pad member is integrally molded or directly bonded thereto. Preferably, the material comprising the pad member is of a thermoplastic elastomer material, such as Santoprene®. Significantly, when the pad member is molded directly to the body member, the pad has internal dimensions only slightly larger than the external dimensions of the body member so that, when the body member is located within the confines of the pad member, a secure fit is formed between these two members, without any space between them. Further, the respective dimensions of the body member and pad member give the sander a thick, one-piece appearance in side and end views. The pad member may also include a plurality of openings which help provide a “spongy” effect to the user, smoothing the peaks and reaching the valleys of an uneven surface upon which the sander is utilized.
    Type: Application
    Filed: March 14, 2005
    Publication date: September 14, 2006
    Inventors: Donald Gringer, Yuan Cheng
  • Publication number: 20060175362
    Abstract: An inventive pouring spout that is selectively attachable to a container and fitted to the opening of the container with which it is used. In a preferred embodiment, the pouring spout is fitted to the dimensions of a one-quart container and includes a wall, a sealing member, a mouth and a handle, the mouth and handle extending from the wall. The handle includes a plurality of upwardly extending projections adapted to securely engage the bottom rim of the container. Furthermore, thermoplastic material is applied at the handle area forming a handle cover that is comfortable and easy to grip. Thermoplastic material is also preferably utilized in the construction of the sealing member for forming a seal between the spout and opening of the container.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 10, 2006
    Inventors: Donald Gringer, Yuan Cheng, Howard Soled
  • Patent number: 7055407
    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: Grant
    Filed: December 1, 2004
    Date of Patent: June 6, 2006
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Publication number: 20060083106
    Abstract: A mixing device includes vanes arranged so that the outer edges of the vanes define a frusto-conical surface in order to facilitate improved circulation of the liquid being mixed. In one embodiment, the outer edges of the vanes are tapered outward to form the frusto-conical surface. In an alternative embodiment, the inner and outer edges of the vanes are aligned with each other, and the vanes are tilted relative to a central axis to form the frusto-conical surface. Turbines extend between the vanes and shaft for rotating the mixing device. The turbines are arranged to avoid inhibiting entry of liquids through the top and bottom of the mixing device. Feet extend downward from the bottom edge of the mixing device to facilitate mixing of liquids on the bottom of the container.
    Type: Application
    Filed: December 5, 2005
    Publication date: April 20, 2006
    Inventors: Donald Gringer, Yuan Cheng, Howard Soled
  • Publication number: 20060080843
    Abstract: In a preferred embodiment, the push-pull stripper-scraper comprises a single stripping blade and a quadruple-edged scraping blade. The stripping blade accommodates a sliding carrier plate which incorporates guide channels for sliding along the stripping blade. The carrier plate is adapted to retain the scraping blade, thus, the scraping blade moves in unison with the carrier plate as the it shifts in position along the stripping blade. The carrier plate, stripping blade and scraping blade also include apertures through which a fastening means secures these respective components but which nevertheless selectively permits movement of the carrier plate along the stripping blade. Significantly, the device allows a user to switch between using the stripping blade and scraping blade, respectively, without changing tools. This is particularly advantageous when using the device in conjunction with an extension pole.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 20, 2006
    Inventors: Donald Gringer, Yuan Cheng
  • Patent number: 6971788
    Abstract: A mixing device includes vanes arranged so that the outer edges of the vanes define a frusto-conical surface in order to facilitate improved circulation of the liquid being mixed. Each vane is preferably curved, either lengthwise, widthwise, or both. In one embodiment, the outer edges of the vanes are tapered outward to form the frusto-conical surface. In an alternative embodiment, the inner and outer edges of the vanes are aligned with each other, and the vanes are tilted relative to a central axis to form the frusto-conical surface. The vanes may extend between upper and lower rims having the same or different diameters. Turbines extend between the vanes and shaft for rotating the mixing device. The turbines are arranged to avoid inhibiting entry of liquids through the top and bottom of the mixing device. Feet extend downward from the bottom edge of the mixing device to facilitate mixing of liquids on the bottom of the container.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: December 6, 2005
    Assignee: Site-b Company
    Inventors: Donald Gringer, Yuan Fang Cheng, Howard Soled
  • Publication number: 20050236443
    Abstract: An inventive pouring spout for containers of liquid, having a removable lid and a strip with magnets located thereon. The spout is selectively attachable and is fitted to the diameter of an opening of a particular container. In a preferred embodiment, the spout is fitted to the diameter of a paint can opening, where it may replace the typical lid of a paint can for the duration of its use. Essentially, the spout effectively prevents the entry of paint in the sealing groove of the paint can or on the sides of the can.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 27, 2005
    Inventors: Donald Gringer, Yuan Cheng
  • Publication number: 20050097756
    Abstract: A cutting device includes (i) a housing having first and second separable portions, the first portion having a locking aperture, the second portion having an attachment aperture, and (ii) a locking apparatus for removably locking the first and second portions of the housing. The locking apparatus includes an attachment portion for being fixedly attached in the attachment aperture, and a locking arm adapted to be releasably locked into the locking aperture. The attachment aperture and locking aperture are correspondingly positioned so that the locking arm becomes aligned with the locking aperture when the first and second portions of the housing are aligned for assembly. The housing may be constructed of metal, and the locking apparatus constructed of plastic. The locking apparatus may also include a return spring and blade carrier integrally molded therewith.
    Type: Application
    Filed: December 16, 2004
    Publication date: May 12, 2005
    Inventors: Donald Gringer, Yuan Cheng
  • Publication number: 20050097753
    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: December 1, 2004
    Publication date: May 12, 2005
    Inventors: Donald Gringer, Yuan Cheng
  • Patent number: 6832438
    Abstract: A cutting device includes (i) a housing having first and second separable portions, the first portion having a locking aperture, the second portion having an attachment aperture, and (ii) a locking apparatus for removably locking the first and second portions of the housing. The locking apparatus includes an attachment portion for being fixedly attached in the attachment aperture, and a locking arm adapted to be releasably locked into the locking aperture. The attachment aperture and locking aperture are correspondingly positioned so that the locking arm becomes aligned with the locking aperture when the first and second portions of the housing are aligned for assembly. The housing may be constructed of metal, and the locking apparatus constructed of plastic. The locking apparatus may also include a return spring and blade carrier integrally molded therewith.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: December 21, 2004
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: 6732395
    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: Grant
    Filed: December 13, 2001
    Date of Patent: May 11, 2004
    Inventor: Donald Gringer
  • Patent number: D516263
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: February 28, 2006
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng, Howard Soled
  • Patent number: D529526
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 3, 2006
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng
  • Patent number: D533343
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: December 12, 2006
    Assignee: Allway Tools, Inc.
    Inventor: Donald Gringer
  • Patent number: D537591
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: February 27, 2007
    Assignee: Allway Tools, Inc.
    Inventors: Donald Gringer, Yuan Fang Cheng, Howard Soled