Thomas L Hartman

US Patent:

7511933, Mar 31, 2009

Filed:

Feb 17, 2006

Appl. No.:

11/357226

Inventors:

Thomas C. Hartman - Coraopolis PA, US
Bryan Marsicano - Spring Hill FL, US
W. Marshall Mauney - West Friendship MD, US
James I. Wise - Cranberry Township PA, US
Michael P. King - Pittsburgh PA, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H02H 3/00

US Classification:

361 67, 361111

Abstract:

An over-voltage protection system including a phase bus connected to a phase conductor of an electrical system and one or more transient-suppressing lines connected to the phase bus. Each of the transient-suppressing lines includes a contactor and a transient-suppressing element. The contactor of each transient-suppressing line is selectively opened and closed by a processor, thereby protecting the transient suppressing element from excessive currents. Also a method of protecting at least one transient-suppressing element from over-voltage conditions including providing a transient-suppressing line including the at least one transient-suppressing element in parallel with a load, measuring at least one of a voltage signal representative of a voltage on the transient-suppressing line and a current signal representative of a current on the transient suppressing line, and selectively placing the transient-suppressing line in either an open condition or a closed condition based on at least one of the voltage signal and the current signal.

US Patent:

46824561, Jul 28, 1987

Filed:

Feb 18, 1986

Appl. No.:

6/829911

Inventors:

Thomas W. Hartman - Pittsburgh PA
Thomas G. Ryan - Bethel Park PA

Assignee:

Cyclops Corporation - Pittsburgh PA

International Classification:

E04B 548

US Classification:

52221

Abstract:

An improved cellular flooring service distribution system is disclosed comprising a cellular flooring unit in which a dividing means provides a plurality of open parallel conduits in a single valley of a corrugated sheet, an overlying trench providing a plurality of transversely oriented parallel passageways which have access to said conduits and an isolating means to selectively isolate at least one conduit and passageway from the remaining conduits and passageways. Cover means and access housings are also provided. Since the above components do not require any special fabrication, they can be efficiently and cheaply mass produced, preferably from sheet metal. Service lines may be placed in open conduits and passageways prior to covering to eliminate the need for feeding the lines through enclosed cells. Since no base plate is required on the corrugated sheets, less material is used than with conventional units, the sheet can be compactly nested to facilitate shipping and handling and fire resistance is increased. Fire resistance is further increased by allowing concrete to flow beneath the trench into the undivided valleys of the sheet.

US Patent:

45935076, Jun 10, 1986

Filed:

Nov 7, 1984

Appl. No.:

6/669074

Inventors:

Thomas W. Hartman - Pittsburgh PA

Assignee:

Cyclops Corporation - Pittsburgh PA

International Classification:

E04F 1708

US Classification:

52221

Abstract:

A trenchless underfloor conduit system for distribution of electrical conductors, service lines and the like is disclosed. One or more spaced-apart duct members of reduced height dimension are placed over a corrugated deck. Covers are provided over selected valleys of the corrugated deck to provide at least one enclosed deck conduit extending transversely with respect to the ducts. Openings are provided in the deck conduit and overlying duct member to allow for communication therebetween. A substantially uninterrupted layer of concrete is provided over the deck and duct members and is secured to underlying supporting beams. The layer of concrete preferably has a minimum thickness of about two inches and is secured to the beams to increase the overall strength of the floor by utilizing a composite design without increasing the overall thickness or reducing the service line capacity thereof.

US Patent:

45935068, Jun 10, 1986

Filed:

Jul 26, 1983

Appl. No.:

6/517366

Inventors:

Thomas W. Hartman - Pittsburgh PA
Thomas G. Ryan - Bethel Park PA

Assignee:

Cyclops Corporation - Pittsburgh PA

International Classification:

E04B 548

US Classification:

52221

Abstract:

An improved cellular flooring service distribution system is disclosed comprising a cellular flooring unit in which a dividing means provides a plurality of open parallel conduits in a single valley of a corrugated sheet, an overlying trench providing a plurality of transversely oriented parallel passageways which have access to said conduits and an isolating means to selectively isolate at least one conduit and passageway from the remaining conduits and passageways. Cover means and access housings are also provided. Since the above components do not require any special fabrication, they can be efficiently and cheaply mass produced, preferably from sheet metal. Service lines may be placed in open conduits and passageways prior to covering to eliminate the need for feeding the lines through enclosed cells. Since no base plate is required on the corrugated sheets, less material is used than with conventional units, the sheets can be compactly nested to facilitate shipping and handling and fire resistance is increased. Fire resistance is further increased by allowing concrete to flow beneath the trench into the undivided valleys of the sheet.

US Patent:

20140208916, Jul 31, 2014

Filed:

Jan 31, 2013

Appl. No.:

13/755109

Inventors:

- Belleville, BB
Hyukjae Chang - Pittsburgh PA, US
Eric R. Colburn - Wexford PA, US
Thomas W. Hartman - Pittsburgh PA, US
Dino A. Mariano - Bridgeville PA, US

Assignee:

HELEN OF TROY LIMITED - Belleville

International Classification:

B26D 3/28

US Classification:

8369951, 83856

Abstract:

A food slicer includes a frame for supporting a landing and a runway movable relative to the landing. A cutting blade is secured on an upstream end of the landing. A downstream end of the runway is spaced from an edge of the cutting blade. A separate cutting knife is moveably connected to the frame. An adjustment mechanism connected to the frame adjusts an offset between the cutting blade and the runway. The adjustment mechanism includes spaced apart first and second guide tracks provided on respective first and second movable side members. The guide tracks are configured such that a first movement of the adjustment mechanism moves the downstream end of the runway relative to the cutting blade to adjust a cutting thickness and a second movement of the adjustment mechanism lowers the downstream end of the runway and raises the cutting knife to a working position.