Patents by Inventor Douglas E. Trimmer

Douglas E. Trimmer 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: 8011637
    Abstract: Improved concrete form systems (10) are provided which permit erection of the systems (10) in close quarters adjacent existing structures, e.g., the systems (10) may be successfully installed with as little as 2-½ inches of clearance between such existing structures. The systems (10) include spaced apart outer and inner wall sections (12, 14) each formed of juxtaposed, interconnected form panels (16, 18, 20, 22), with connection assemblies (24, 25) serving to interconnect the adjacent form panels (16, 18, 20, 22) of each wall section (12, 14), and to cross-connect the wall sections (12, 14). Each form panel has a planar panel segment (26) having side marginal connection structures (48) preferably including concave surfaces (50, 52).
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 6, 2011
    Assignee: Precise Forms, Inc.
    Inventor: Douglas E. Trimmer
  • Publication number: 20080307735
    Abstract: An improved concrete form (20) is provided having spaced apart, opposed, multi-panel wall sections (22, 28) interconnected by connection assemblies (68). Each wall section (22, 28) is made up of at least two form panels (24, 26, 30, 32) which are placed in side-by-side, abutting relationship. Each form panel (24, 26, 30, 32) has a planar panel segment (34) with a pair of projecting, apertured sidewalls (42) secured to the outer surfaces (38) thereof. Each segment (34) has a series of recesses (62) formed in the butt edges (60) thereof outboard of the proximal sidewalls (42), so that when the form panels (24, 26 or 30, 32) are adjacent each other, a series of through-openings (64) are cooperatively defined by the recesses (62). The connection assemblies (68) include an elongated, threaded connector (70) of length to bridge the wall sections (22, 28) and to present threaded end segments (78, 80) extending beyond the wall sections (22, 28).
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventor: Douglas E. Trimmer
  • Publication number: 20080307736
    Abstract: Improved concrete form systems (10) are provided which permit erection of the systems (10) in close quarters adjacent existing structures, e.g., the systems (10) may be successfully installed with as little as 2-½ inches of clearance between such existing structures. The systems (10) include spaced apart outer and inner wall sections (12, 14) each formed of juxtaposed, interconnected form panels (16, 18, 20, 22), with connection assemblies (24, 25) serving to interconnect the adjacent form panels (16, 18, 20, 22) of each wall section (12, 14), and to cross-connect the wall sections (12, 14). Each form panel has a planar panel segment (26) having, side marginal connection structures (48) preferably including concave surfaces (50, 52).
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventor: Douglas E. Trimmer
  • Publication number: 20080307725
    Abstract: A concrete form assembly (10) is provided that allows decking form sections (14) to be more efficiently secured to adjacent wall sections (16). The upper sidewall (20) of the wall section presents a flange (22) that is configured to engage a rib (30) formed in a ledger (26) that attached to a portion of the outer periphery of decking section (14). A plurality of fasteners (44) are used to secure the decking section (14) to the wall section (16).
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventor: Douglas E. Trimmer
  • Patent number: 7182308
    Abstract: An assembly (20) for releasably interconnecting a pair of concrete form panels (22, 24) having adjacent, apertured walls (30) is provided which completely eliminates loose parts and significantly reduces panel setup and knock-down times. The assembly (20) includes an elongated pin (38) axially shiftable between extended and retracted positions, as well as an elongated connection arm (88) of length to bridge the adjacent walls (30) and engage the remote surface of the wall (30). An operating mechanism (42) is operatively coupled with pin (38) and arm (88). A latch assembly (96) serves to releasably maintain the pin (38) and arm (88) in their respective positions. Preferably, the pin 38 is mounted on a body (36) shiftable along a track (46); the latch assembly (96) is also supported on the body (36) to insure that the operating mechanism (42) can be properly latched in the retracted and extended positions of the pin (38).
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: February 27, 2007
    Assignee: Precise Forms, Inc.
    Inventors: Douglas E. Trimmer, Danny R. Dugger, Dwight E. Hibbs, Launnie Kelmel, James L. Brockman
  • Patent number: 5759429
    Abstract: An assembly (20) for releasably interconnecting a pair of concrete form panels (28, 28a) having adjacent, apertured walls (30, 30a) is provided which completely eliminates loose parts and significantly reduces panel setup and knock-down times. The assembly (20) includes an elongated pin (22) axially shiftable between extended and retracted positions, as well as an elongated connection arm (24) of length to bridge the walls (30, 30a) and engage a surface (44a) of one wall (30a). An operating mechanism (70) is operatively coupled with pin (22) and arm (24) and serves to draw the walls (30, 30a) together when pin (22) is extended through the wall apertures (32, 32a). A latch assembly (96) serves to releasably maintain the pin (22) and arm (24) in their respective positions.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 2, 1998
    Assignee: Precise Forms, Inc.
    Inventors: Douglas E. Trimmer, Dwight E. Hibbs, James Otto Mittelstadt