1
Phillip L Van Duyn, Jorg R Barenwald, Kenneth E Kruse: Chemical safety conduit or trench. ACO Polymer Products, Watts Hoffmann Fisher & Heinke, July 10, 1990: US04940359 (52 worldwide citation)

An elongate safety conduit or trench for receiving chemical liquids, having first and second preassembled conduit elements, the first located and retained within the second. A space is between the two at the bottom for collecting liquid that may leak through the first. A seal along the length of the ...


2
Jorg R Barenwald: Chemical safety trench drain conduit. Aco Polymer Products, Watts Hoffmann Fisher & Heinke, May 25, 1993: US05213438 (50 worldwide citation)

A safety trench drain conduit formed of first and second trench drain elements each in the form of an open top channel having imperforate bottom and sidewall portions. The first trench drain element is located and retained within the second trench drain element and is constructed and arranged to all ...


3
Jorg R Barenwald, August W Haupt: Trench drain channel clip support. Aco Polymer Products, Watts Hoffmann Fisher & Heinke, July 13, 1993: US05226748 (42 worldwide citation)

A clip-type support for use in installing trench drain systems. The clip device has two clip structures spaced from each other along a central web to engage, clamp and support two inter-engaging end portions of adjacent drain channel sections. A middle portion of the clip device separating the two c ...


4
Peter Karbstein: Drainage channel. ACO Polymer Products, Beveridge DeGrandi & Weilacher, December 23, 1986: US04630966 (28 worldwide citation)

A drainage channel is shown which features a body having complementary ends which, in abutting relationship, form interlock with adjacent channel bodies when joining the channel bodies together; and an edge protective frame device for the upper free rims or edges of the channel side walls comprising ...


5
Peter Karbstein: Protective frame device for drainage channel. ACO Polymer Products, Beveridge DeGrandi & Weilacher, October 13, 1987: US04699544 (26 worldwide citation)

A drainage channel is shown which features a body having complementary ends which, in abutting relationship, form interlock with adjacent channel bodies when joining the channel bodies together; and an edge protective frame device for the upper free rims or edges of the channel side walls comprising ...


6
Terry D Capuano: Slotted drain conduit. ACO Polymer Products, Beveridge DeGrandi & Weilacher, June 13, 1989: US04838727 (24 worldwide citation)

A one-piece slotted conduit having a thin inner body section and an encompassing frame structure. The encompassing frame structure having specially designed recesses formed in it to ensure maximum conduit strength and an economic use of material. The slotted conduit also including male/female interc ...


7
Derek Humphries, Roy Humpage, Gary Edwin Mayo: Drainage grate assembly. ACO Polymer Products, Pearne & Gordon, June 21, 2005: US06908256 (18 worldwide citation)

An improved drainage grate assembly having a reinforcing assembly which is capable of providing substantially continuous support to non-apertured portions of the drainage grate. The load rating for the drainage grate assembly can be adjusted by adding metal strips to the reinforcing assembly.


8
Derek Humphries, James A McConnell: Method and apparatus for forming a trench drain. ACO Polymer Products, Pearne & Gordon, July 22, 2003: US06595720 (16 worldwide citation)

A method and apparatus for forming a trench drain includes an elongated trench form, first and second spaced apart frame rails, a support member and a first and second fastener. The trench form includes at least one folding member folded along predetermined lines. The support member is affixed to th ...


9
Derek Humphries, Roy Humpage, Gary Edwin Mayo: Drainage grate. ACO Polymer Products, Pearne & Gordon, June 27, 2006: US07066685 (13 worldwide citation)

A drainage grate assembly having a drainage grate which is reinforced by a substantially continuous reinforcing member confined within the grate. The load rating for the drainage grate assembly can be adjusted by adding metal strips which can be disposed within and retained by the reinforcing member ...


10
Derek Humphries, James McConnell: Drainage channel installation device. ACO Polymer Products, Pearne & Gordon, October 24, 2006: US07125506 (12 worldwide citation)

A drainage channel installation device comprises a channel-securing member and a channel-hanging member. The channel-securing member releasably engages the channel-hanging member and has opposed ends that are adapted to be releasably secured to the opposed side walls of a drainage channel. The chann ...