Patents by Inventor David C. Gertz

David C. Gertz 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: 7476051
    Abstract: A vertical panel system comprises a vertical panel having a panel with opposing first and second panel surfaces and a base edge. The system further comprises a base having a slot for engaging the base edge of the panel. An aperture is disposed in the panel in proximity to the base edge, which is of sufficient size to receive a foot of a user, for assisting in the engagement of the panel and the base. The base for the vertical panel system comprises a center zone fabricated of vulcanized rubber, and an outer zone fabricated of recycled rubber. The slot is disposed in the center zone. Thus, the combination solves a need to be environmentally responsible and cost effective by recycling rubber which would otherwise fill our landfills, yet provides increased durability by using virgin vulcanized rubber in the zone of the base which includes the engagement slot.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: January 13, 2009
    Assignee: Traffix Devices, Inc.
    Inventors: Brent M. Kulp, David C. Gertz
  • Patent number: 7438337
    Abstract: A truck mounted attenuator (TMA) is constructed to minimize length during use in a horizontal position and height in a vertical transport position, as well as to minimize wind resistance and buffeting at highway speeds. A modular construction is employed, so that only damaged portions of the TMA can be removed and replaced in the field after a vehicle impact. The TMA comprises a plurality of outwardly curved tubular structural members which are designed to buckle upon application to the TMA of forces resulting from vehicular impact. The rigid tubes buckle at a high initial force, then proceed to crush at a lower force once the sides have buckled outwardly sufficiently to protect vehicle occupants during the critical first two feet of travel after impact. This design also provides increased protection for errant vehicles which impact the TMA device from an angle (i.e. “coffin corner” impact).
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: October 21, 2008
    Assignee: TrafFix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 7243964
    Abstract: A truck mounted attenuator (TMA) is constructed to minimize length during use in a horizontal position and height in a vertical transport position, as well as to minimize wind resistance and buffeting at highway speeds. A modular construction is employed, so that only damaged portions of the TMA can be removed and replaced in the field after a vehicle impact. The TMA comprises a plurality of outwardly curved tubular structural members which are designed to buckle upon application to the TMA of forces resulting from vehicular impact. The rigid tubes buckle at a high initial force, then proceed to crush at a lower force once the sides have buckled outwardly sufficiently to protect vehicle occupants during the critical first two feet of travel after impact. This design also provides increased protection for errant vehicles which impact the TMA device from an angle (i.e. “coffin corner” impact).
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: July 17, 2007
    Assignee: Traffix Devices, Inc
    Inventor: David C. Gertz
  • Patent number: 7175361
    Abstract: An inertial barrier system comprises inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement. One of the two modules functions as a container, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material. The lower module functions only as a pedestal for the support of the upper module. The upper module is advantageously fillable to different predetermined levels, so that the apparatus, comprising the joined lower and upper modules, is capable of functioning as differently weighted barrier systems.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 13, 2007
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 7156576
    Abstract: Molded ribs are provided for use in connection with traffic channeling devices, such as drums, which employ external ballasting collars, such as molded rings or truck tire rings. The ribs are disposed at spaced intervals near the bottom of the external wall of the drum, for improving contact between the drum wall and the internal diameter of the ballasting collar, in order to eliminate undesirable separation of the drum and collar during ordinary use, and to prevent inadvertent rotation of the drum relative to the collar.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: January 2, 2007
    Assignee: Traffix Devices, Inc.
    Inventors: Jack H. Kulp, David C. Gertz
  • Patent number: 6926324
    Abstract: A truck mounted attenuator (TMA) is constructed to minimize length during use in a horizontal position and height in a vertical transport position, as well as to minimize wind resistance and buffeting at highway speeds. A modular construction is employed, so that only damaged portions of the TMA can be removed and replaced in the field after a vehicle impact. The TMA comprises a plurality of outwardly curved tubular structural members which are designed to buckle upon application to the TMA of forces resulting from vehicular impact. The rigid tubes buckle at a high initial force, then proceed to crush at a lower force once the sides have buckled outwardly sufficiently to protect vehicle occupants during the critical first two feet of travel after impact. This design also provides increased protection for errant vehicles which impact the TMA device from an angle (i.e. “coffin corner” impact).
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 9, 2005
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 6840707
    Abstract: A vertical panel system comprises a vertical panel having a panel with opposing first and second panel surfaces and a base edge. The system further comprises a base having a slot for engaging the base edge of the panel. An aperture is disposed in the panel in proximity to the base edge, which is of sufficient size to receive a foot of a user, for assisting in the engagement of the panel and the base. The base for the vertical panel system comprises a center zone fabricated of vulcanized rubber, and an outer zone fabricated of recycled rubber. The slot is disposed in the center zone. Thus, the combination solves a need to be environmentally responsible and cost effective by recycling rubber which would otherwise fill our landfills, yet provides increased durability by using virgin vulcanized rubber in the zone of the base which includes the engagement slot.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: January 11, 2005
    Assignee: Traffix Devices, Inc.
    Inventors: Brent M. Kulp, David C. Gertz
  • Patent number: 6835024
    Abstract: An inertial barrier system comprises inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement. One of the two modules functions as a container, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material. The lower module functions only as a pedestal for the support of the upper module. The upper module is advantageously fillable to different predetermined levels, so that the apparatus, comprising the joined lower and upper modules, is capable of functioning as differently weighted barrier systems.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: December 28, 2004
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 6786673
    Abstract: Molded ribs are provided for use in connection with traffic channeling devices, such as drums, which employ external ballasting collars, such as molded rings or truck tire rings. The ribs are disposed at spaced intervals near the bottom of the external wall of the drum, for improving contact between the drum wall and the internal diameter of the ballasting collar, in order to eliminate undesirable separation of the drum and collar during ordinary use, and to prevent inadvertent rotation of the drum relative to the collar.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: September 7, 2004
    Assignee: Traffix Devices, Inc.
    Inventors: Jack H. Kulp, David C. Gertz
  • Patent number: 6659681
    Abstract: A vertical panel system comprises a vertical panel having a panel with opposing first and second panel surfaces and a base edge. The system further comprises a base having a slot for engaging the base edge of the panel. An aperture is disposed in the panel in proximity to the base edge, which is of sufficient size to receive a foot of a user, for assisting in the engagement of the panel and the base. The base for the vertical panel system comprises a center zone fabricated of vulcanized rubber, and an outer zone fabricated of recycled rubber. The slot is disposed in the center zone. Thus, the combination solves a need to be environmentally responsible and cost effective by recycling rubber which would otherwise fill our landfills, yet provides increased durability by using virgin vulcanized rubber in the zone of the base which includes the engagement slot.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: December 9, 2003
    Assignee: Traf Fix Devices, Inc.
    Inventors: Brent M. Kulp, David C. Gertz, Jack H. Kulp
  • Patent number: 6637972
    Abstract: An inertial barrier system comprises inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement. One of the two modules functions as a container, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material. The lower module functions only as a pedestal for the support of the upper module. The upper module is advantageously fillable to different predetermined levels, so that the apparatus, comprising the joined lower and upper modules, is capable of functioning as differently weighted barrier systems.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: October 28, 2003
    Assignee: Traffix Devices, Inc.
    Inventor: David C Gertz
  • Patent number: 6581992
    Abstract: A tuck mounted attenuator (TMA) is constructed to minimize length during use in a horizontal position and height in a vertical transport position, as well as to minimize wind resistance and buffeting at highway speeds. A modular construction is employed, so that only damaged portions of the TMA can be removed and replaced in the field after a vehicle impact The TMA comprises a plurality of outwardly curved tubular structural members which are designed to buckle upon application to the TMA of forces resulting from vehicular impact. The rigid tubes buckle at a high initial force, then proceed to crush at a lower force once the sides have buckled outwardly sufficiently to protect vehicle occupants during the critical first two feet of travel after impact. This design also provides increased protection for errant vehicles which impact the TMA device from an angle (i.e. “coffin corner” impact).
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: June 24, 2003
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Publication number: 20030095835
    Abstract: Molded ribs are provided for use in connection with traffic channeling devices, such as drums, which employ external ballasting collars, such as molded rings or truck tire rings. The ribs are disposed at spaced intervals near the bottom of the external wall of the drum, for improving contact between the drum wall and the internal diameter of the ballasting collar, in order to eliminate undesirable separation of the drum and collar during ordinary use, and to prevent inadvertent rotation of the drum relative to the collar.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 22, 2003
    Applicant: TrafFix Devices, Inc.
    Inventors: Jack H. Kulp, David C. Gertz
  • Patent number: 6491470
    Abstract: An inertial barrier system comprises inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement. One of the two modules functions as a container, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material. The lower module functions only as a pedestal for the support of the upper module. The upper module is fillable to different predetermined levels, so that the apparatus, comprising the joined lower and upper modules, is capable of functioning as differently weighted barrier systems.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: December 10, 2002
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 6478505
    Abstract: In a traffic channeling device, a molded rib for attachment to an exterior surface of a bottom wall of a drum for inhibiting the drum from rotating relative to a rubber ballasting collar. The rib comprises an exterior surface for contact with the rubber ballasting collar, a back surface for contact with the bottom wall of the traffic channeling device, and a thickness between the exterior and back surfaces. In aspects of the device, the one or more molded ribs may be attached to the bottom wall exterior surface in a latitudinal arc of less than 180°. In further aspects of the device, locator pins radially extending from the bottom wall exterior surface complement cavities in the back surface of the molded rib. In additional aspects of the device, fasteners, such as screws, attach the molded ribs to the device such that the fasteners do not extend past a wall inside surface, thereby inhibiting marring of drum walls during stacking of the drums.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: November 12, 2002
    Assignee: Traffix Devices, Inc.
    Inventors: Jack H. Kulp, David C. Gertz
  • Patent number: 6430855
    Abstract: A sign stand has a mast with a flexible upper portion. The flexible upper portion of the mast inhibits the mast from piercing a windshield of a vehicle when the sign stand is struck by the vehicle. The sign stand may have a sign mounted on the mast flexible upper portion. Additionally, a top end of the mast flexible upper portion extends beyond a top edge of the sign. The mast flexible upper portion may have other items attached to it, such as a flag holder, a light mounting bracket, a light, or sign mounting brackets. The sign mounted to the flexible upper mast may be metal, such as aluminum, composite materials, or fabric. The mast also has a lower portion that is connected to a support stand. The mast lower portion may be flexibly connected to the support stand. The mast may be made up of two or more parts. The mast may be telescopic. The upper and lower portions of the mast may be in a telescopic relationship.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: August 13, 2002
    Assignee: Traffix Devices, Inc.
    Inventors: David C. Gertz, Jack H. Kulp
  • Patent number: 6402422
    Abstract: A vertical panel system has a vertical panel and a base. The vertical panel has one or more panels. Each panel has opposing first and second panel surfaces and a plurality of edges, wherein the plurality of edges has a base edge. A tab extends from the first panel base edge and terminates at a tab bottom edge. The tab has two opposing side surfaces extending between two opposing side edges. At least one of the tab side surfaces has a tab groove extending from the tab bottom edge and towards the first panel base edge. The base has a top surface and a slot extending from the top surface and into the base. The slot complements at least a portion of the tab and the tab groove. The tab bottom edge extends a length that is shorter than the length of the panel base edge. When assembled, a portion of the vertical panel is in contact with the base top surface, which stabilizes the vertical panel laterally. The edges of vertical panel are raised to protect the panel surfaces.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: June 11, 2002
    Assignee: Traffix Devices, Inc.
    Inventors: David C. Gertz, Jack H. Kulp
  • Patent number: 6382870
    Abstract: A sawhorse type of traffic barricade constructed from identical leg units. The legs are equipped with a stop to prevent them from opening beyond a predetermined point. The legs have the cross section of a right triangle, allowing the hypotenuse sides of the legs to nest within each other. The legs may be equipped with complementary convex and concave portions to allow the barricades to be stacked securely atop one another by fitting the portions together.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: May 7, 2002
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 6203241
    Abstract: An inertial barrier system comprised of inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement, and also assists in varying the volumetric capacity of each of the two modules. Thus, when the smaller of the two modules is the upper module, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material, a lighter weight barrier is obtained. On the other hand, when the two modules are inverted, and the larger one is the upper module, its greater volumetric capacity ensures that, once filled by the ballasting material, a heavier barrier will result. Advantageously, each module is sized to ensure a barrier of the proper weight when it is placed in the position of the upper module and is properly filled by a worker.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: March 20, 2001
    Inventor: David C. Gertz
  • Patent number: 6116805
    Abstract: An energy absorbing guardrail crash attenuator system comprises a row of compressible hoops with left and right border panels extending along at least a portion of the row. Adjacent hoops in the row are attached, with the proximate portions of adjacent hoops defining connection regions. The border panels extend along the left and right sides of the row of hoops, with the panels being separated by a panel distance. The left and right border panels have opposing portion pairs that are restricted in their movement such that the pairs do not move more than the panel distance apart during compression of one or more of the hoops. At least one of the opposing portion pairs is disposed about one of the connection regions. In an aspect of the attenuation system, the hoops have left and right outwardly bowing curved panels having front ends oriented toward the row front and back ends oriented toward the row back.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: September 12, 2000
    Inventor: David C. Gertz