Patents by Inventor Tom Griffith

Tom Griffith 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: 11331826
    Abstract: A mold frame for the production of molded pieces, comprising at least one mold cavity, the at least one mold cavity being defined by a plurality of mold walls, wherein at least one mold wall of the mold cavity is a mold wall that is displaceably attached to the mold frame, and comprising at least one heating element for heating at least a part of the mold frame.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 17, 2022
    Assignee: Rampf Formen GmbH
    Inventors: Josef Ott, Tom Griffith, Andreas Wörz
  • Publication number: 20210309571
    Abstract: In the present disclosure, a method of forming a gypsum panel is disclosed. The method comprises: providing a first facing material, forming a starch slurry by combining starch and water at a shear rate of 3,000 rpm or more, providing the starch slurry onto the first facing material, depositing a gypsum slurry comprising stucco and water onto the starch slurry on the first facing material, providing a second facing material on the gypsum slurry, and allowing the stucco to convert to calcium sulfate dihydrate.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 7, 2021
    Inventors: Gene Whittington, Robert Piercy, Tom Griffith, Al Flanders
  • Publication number: 20210001512
    Abstract: A mold frame for the production of molded pieces, comprising at least one mold cavity, the at least one mold cavity being defined by a plurality of mold walls, wherein at least one mold wall of the mold cavity is a mold wall that is displaceably attached to the mold frame, and comprising at least one heating element for heating at least a part of the mold frame.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 7, 2021
    Inventors: Josef Ott, Tom Griffith, Andreas Wörz
  • Patent number: 10814523
    Abstract: In summary, the invention concerns a mold frame for the production of molded pieces, comprising: at least one mold cavity, the at least one mold cavity being defined by a plurality of mold walls, wherein at least one mold wall of the mold cavity is a mold wall that is displaceably attached to the mold frame.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: October 27, 2020
    Assignee: Rampf Formen GmbH
    Inventors: Josef Ott, Tom Griffith, Andreas Wörz
  • Publication number: 20190070750
    Abstract: In summary, the invention concerns a mold frame for the production of molded pieces, comprising: at least one mold cavity, the at least one mold cavity being defined by a plurality of mold walls, wherein at least one mold wall of the mold cavity is a mold wall that is displaceably attached to the mold frame.
    Type: Application
    Filed: March 1, 2017
    Publication date: March 7, 2019
    Inventors: Josef Ott, Tom Griffith, Andreas Wörz
  • Patent number: 8733051
    Abstract: A building block assembly is provided comprising a building block and a seal. In one embodiment, the building block comprises a first surface, and the first surface has a groove. The seal is movable from a first position to a second position. In the first position, the seal is retracted into the groove, and in the second position the seal is extended outside the groove. In another embodiment, the seal is connected to the building block, and the seal at least partially encases a fluid sealant.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: May 27, 2014
    Assignee: Rampf Molds Industries, Inc.
    Inventor: Tom Griffith
  • Patent number: 8714959
    Abstract: A mold, for producing molded blocks with at least one lateral face which has a texture, comprises a mold lower part and at least one flexible belt, wherein the flexible belt surrounds at least one mold wall of the mold lower part that delimits a mold cavity of the mold lower part in order to act on the material for producing the molded block that is received in the mold cavity, to impress a texture on at least one of the lateral faces of the molded block, wherein the flexible belt is moveable relative to the mold lower part and is mounted in such a way that the flexible belt moves around the mold wall when the molded block is ejected from the mold cavity. The mold comprises an active auxiliary device by means of which a rolling resistance of the flexible belt can be varied.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 6, 2014
    Assignee: Rampf Molds Industries, Inc.
    Inventors: Andreas Worz, Tom Griffith
  • Publication number: 20140115992
    Abstract: A building block assembly is provided comprising a building block and a seal. In one embodiment, the building block comprises a first surface, and the first surface has a groove. The seal is movable from a first position to a second position. In the first position, the seal is retracted into the groove, and in the second position the seal is extended outside the groove. In another embodiment, the seal is connected to the building block, and the seal at least partially encases a fluid sealant.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: RAMPF MOLDS INDUSTRIES, INC.
    Inventor: Tom GRIFFITH
  • Patent number: 7021919
    Abstract: A mold for forming blocks with at least one textured surface, the mold comprising a structure defining a cavity open at opposite ends thereof for receiving a block forming material at one of the open ends and discharging a block formed from the block forming material at the other of the open ends; and a continuous web surrounding at least a portion of the structure and movable relative to the structure for acting on the block forming material received within the cavity to impart a texture to a surface of the block, the web being mounted to move around the portion of the structure when the block is discharged from the cavity.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: April 4, 2006
    Inventor: Tom Griffith
  • Patent number: 6916166
    Abstract: A mold for forming blocks with at least one textured surface, the mold comprising a structure defining a cavity open at opposite ends thereof for receiving a block forming material at one of the open ends and discharging a block formed from the block forming material at the other of the open ends; and a continuous web surrounding at least a portion of the structure and movable relative to the structure for acting on the block forming material received within the cavity to impart a texture to a surface of the block, the web being mounted to move around the portion of the structure when the block is discharged from the cavity.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 12, 2005
    Inventor: Tom Griffith
  • Publication number: 20040104511
    Abstract: A mold for forming blocks with at least one textured surface, the mold comprising a structure defining a cavity open at opposite ends thereof for receiving a block forming material at one of the open ends and discharging a block formed from the block forming material at the other of the open ends; and a continuous web surrounding at least a portion of the structure and movable relative to the structure for acting on the block forming material received within the cavity to impart a texture to a surface of the block, the web being mounted to move around the portion of the structure when the block is discharged from the cavity.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Inventor: Tom Griffith
  • Patent number: D696793
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: December 31, 2013
    Assignee: Rampf Molds Industries, Inc.
    Inventor: Tom Griffith
  • Patent number: D711018
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 12, 2014
    Assignee: Rampf Molds Industries, Inc.
    Inventor: Tom Griffith
  • Patent number: D711019
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 12, 2014
    Assignee: Rampf Molds Industries, Inc.
    Inventor: Tom Griffith