1
Joseph P Moore, Andrew J Kudarauskas, Theodore J Kliszczewicz, John E Allen, Allan T Fisk, Philip R Lichtman, Gerald A Avarbock, Linda T Ystueta: Internal pipe inspection system. Niagara Mohawk Power Corporation, Heslin & Roghenberg, March 23, 1993: US05195392 (52 worldwide citation)

Internal pipe inspection apparatus and an in-line pipe head are disclosed. The inspection apparatus is insertable into either a four inch or six inch pipeline through a standard service size opening. The apparatus includes a compact pipe head having a viewing assembly for imaging the interior of the ...


2
Edward E Fischer, Thomas H Mann, Allan T Fisk: Horizontal boring apparatus and method. Electric Power Research Institute, Fish & Richardson, February 19, 1991: US04993503 (35 worldwide citation)

Boring apparatus for forming a generally horizontal underground passage for a utility conduit or the like that includes a tool head with elongated body structure and a cutting face of ellipto-conical form at one end of the elongated body structure. The cutting face has a major axis and a minor axis ...


3
Allan T Fisk, David I Freed, Thomas A Mann: Pipe bursting and replacement method. Consolidated Edison Company of New York, Brooks Haidt Haffner & Delahunty, January 7, 1992: US05078546 (35 worldwide citation)

Tool for slitting and laterally expanding underground steel gas mains and inserting replacement plastic piping into the spread apart pipeline has a forward end cylindrical portion mounting a single, rearwardly angled blade to make only one line of cut, and a conical pipe spreader portion at its rear ...


4
Allan T Fisk, David I Freed, Thomas A Mann: Pipe bursting and replacement apparatus and method. Consolidated Edison Company of New York, Brooks Haidt Haffner & Delahunty, January 8, 1991: US04983071 (26 worldwide citation)

Tool for slitting and laterally expanding underground steel gas mains and inserting replacement plastic piping into the spread apart pipeline has a forward end cylindrical portion mounting a single, rearwardly angled blade to make only one line of cut, and a conical pipe spreader portion at its rear ...


5
Allan T Fisk: Guided mole. Foster Miller, Fish & Richardson, June 21, 1994: US05322391 (19 worldwide citation)

Boring apparatus for forming a generally horizontal underground passage in soil for a utility conduit or the like that includes a tool head with a base portion and a nose portion mounted on the base portion. The nose portion is rotatable relative to the base portion between a first position in which ...


6
Carl R Peterson, Allan T Fisk: Sealing between relatively rotating members in boring apparatus. Rapidex, May 3, 1977: US04020910 (15 worldwide citation)

A boring apparatus having a working member mounted for rotation on a lubricated bearing about a shaft member, the apparatus being of the type in which substantial radial and axial relative motion between said members occurs in response to radial and axial loading conditions encountered by the workin ...


7
Allan T Fisk, Carl R Peterson: Boring apparatus. Rapidex, August 31, 1976: US03977481 (14 worldwide citation)

Boring apparatus having a plurality of hole-enlarging assemblies comprising shaft-mounted working members. In a convergent arrangement of the axes of the working members the assemblies are completed by insertion of the elongated shafts via a hollow space in the bottom connector, through passages in ...


8
Allan T Fisk: Guided mole. Foster Miller, Fish & Richardson P C, January 28, 1997: US05597046 (12 worldwide citation)

Moling apparatus for forming a generally horizontal underground passage in soil for a utility conduit or the like includes tool head structure with a base portion and a nose portion mounted on the base portion such that an interface region is formed between nose portion and base portion surfaces. Th ...


9
Stephen B Douglas, Allan T Fisk: Pipeline coupling. Foster Miller, May 5, 1987: US04662656 (12 worldwide citation)

Pipe coupling apparatus including a tubular female coupling structure and a tubular male coupling structure sized to fit within and mate with the female coupling structure, one coupling structure including a housing and a locking ring that is radially deformable within an annular supporting groove o ...


10
Scott R Albin, Allan T Fisk: End effector for mobile remotely controlled robot. Foster Miller, Iandiorio Teska & Coleman, April 9, 2013: US08414043 (11 worldwide citation)

An end effector for a mobile, remotely controlled robot includes first and second fingers; each finger fixed to a gear segment for rotation therewith; and a drive subsystem driving the gear segments and the associated fingers between open and closed positions.