DANIEL E BRUCE
Engineers in Murrysville, PA

7180076, Feb 20, 2007

Mar 30, 2005

11/093992

Jon K. Haverstick - Butler PA, US
Daniel E. Bruce - Murrysville PA, US
Michael B. Schulman - Pittsburgh PA, US
James A. Cahall - Zelienople PA, US
James B. Miller - Pittsburgh PA, US

Mine Safety Appliances Company - Pittsburgh PA

B01D 59/44, A61N 5/00

250382, 250423 P, 250372, 313494, 313324, 324464

A photoionization detector includes a housing, electrical contacts within the housing and an easily removable and replaceable photoionization chamber within the housing. The photoionization chamber includes a cathodic electrode and an anodic electrode which may be coated with a thin layer of material. The photoionization chamber and the associated cathodic electrode and anodic electrode are removable from within the housing as a unit. The photoionization chamber makes electrical connection with the contacts when seated within the housing regardless of the orientation of the photoionization chamber about an axis.

5495747, Mar 5, 1996

Sep 30, 1994

8/315709

Roberta A. Herman - Cranberry Township PA
Daniel E. Bruce - Murrysville PA
Alan A. Schneider - Wexford PA
Stephen E. Long - Murrysville PA

Mine Safety Appliances Company - Pittsburgh PA

G01N 2716, G01N 2700, G08B 1710

73 2321

A gas detection device is provided comprising an exterior housing in which an active pelement and a compensating pelement are disposed. The gas detection device further comprises a porous frit seated within a distal end of the exterior housing to separate the active pelement and the compensating pelement from the surrounding environment. The porous frit is adapted to prevent flashback into the surrounding environment while allowing movement of environmental gas through the porous frit to contact the active pelement and the compensating pelement. The gas detection device further comprises a flow guide for directing flow of environmental gas into the gas detection device disposed adjacent the exterior side of the porous frit. The flow guide comprises an inlet port through which a forced flow of environmental gas is pumped to pass through the porous frit and into the exterior housing in a direction generally parallel to the axis of the exterior housing. The flow guide also comprises an outlet port through which gas may exit the exterior housing.

2012009, Apr 26, 2012

Aug 29, 2011

13/220088

Daniel E. Bruce - Murrysville PA, US

ITT Manufacturing Enterprises, Inc. - Wilmington DE

B01D 35/00, B25G 1/00, B25G 1/02, B23P 11/00

210238, 29418, 16422

An underdrain block including a top wall, a bottom wall, and a pair of sidewalls defining a hollow interior and having a longitudinal axis, wherein the sidewalls, top wall, or both comprise at least one external detail. A handle is detachably connected to the external detail for transportation and positioning of said underdrain block. The external detail may comprise one of a protrusion or a receptacle for receiving a protrusion and the handle may include the other of a protrusion or a receptacle for receiving a protrusion. Also, a method of installing an underdrain block lateral comprising at least one underdrain block including the steps of attaching a handle to external details on the underdrain block, lifting the underdrain block lateral by the handle, positioning the underdrain block lateral into the underdrain system, and detaching the handle from the external details of the underdrain block.

2013019, Aug 8, 2013

Jan 18, 2011

13/522748

Dean T. Berkebile - Cranberry Township PA, US
Daniel E. Bruce - Murrysville PA, US
Christopher J. Ball - Cranberry Township PA, US

XYLEM WATER SOLUTIONS ZELIENOPLE LLC - Zelienople PA

B01D 24/24

210483, 29428

An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, a bottom wall extending between the pair of side walls, and a transverse wall extending from one of the pair of side walls to the other of the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber positioned between the bottom wall and the transverse wall and at least one of the bottom wall and said side walls contains an opening.

2011017, Jul 21, 2011

Jan 3, 2011

12/983465

Dean T. Berkebile - Cranberry Twp. PA, US
Daniel E. Bruce - Murrysville PA, US
Christopher J. Ball - McDonald PA, US

ITT WATER & WASTEWATER LEOPOLD, INC. - Zelienople PA

B01D 24/46, E04B 1/66

210275, 5274141

An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, and a bottom wall extending between the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber having a plurality of openings defined by at least one of the bottom wall and the pair of side walls.

5370004, Dec 6, 1994

May 26, 1993

8/068318

Clayton J. Bossart - Monroeville PA
Daniel E. Bruce - Murrysville PA
Charles H. Etheridge - Pittsburgh PA

Mine Safety Appliances Company - Pittsburgh PA

G01N 124

7386323

A personal sampling apparatus having multiple sampling ports for simultaneously taking a plurality of ambient air samples in parallel. Incorporated into the sampling apparatus is a regulator for enabling the apparatus to function with virtually any personal sampling pump. The regulator by being located immediately proximate to the sampling ports is able to provide independent vacuum flow rate control of each of the multiple sampling ports.

7530255, May 12, 2009

Jun 30, 2005

11/171861

William R. Frank - Pittsburgh PA, US
Daniel E. Bruce - Murrysville PA, US
Jon K. Haverstick - Butler PA, US

Mine Safety Appliances Company - Pittsburgh PA

G01N 37/00

73 103, 73 106

A testing module for use with a gas detector, includes a plurality of gas inlets and outlets, each outlet being in fluid connection with one of the inlets. Each of the outlets is adapted to mate with and form a fluid connection with one of the inlets of a second like testing module. Gases can then flow from the outlets of the testing module into the inlets of the second like testing module. A gas container module for use with a gas container, includes a plurality of gas inlets and outlets, each inlet being in fluid connection with one of the outlets. Each of the inlets is adapted to mate with and form a fluid connection with one of a the outlets on a second like gas container module. Gases can then flow from the outlets of the second like gas container module into the inlets of the gas container module.

2012010, May 3, 2012

Sep 20, 2011

13/237394

Daniel E. Bruce - Murrysville PA, US
John L. Geibel - Butler PA, US
Christopher J. Ball - Cranberry Township PA, US

ITT Manufacturing Enterprises, Inc. - Wilmington DE

E02B 5/08, B23P 11/00, B01D 35/00

210541, 29428

An underdrain flume plate for use in a filter including at least one central opening having an upstanding flange to interface with a cut-out in an underdrain lateral to form a passageway for connecting the lateral to the flume. The flume plate may also include at least one raised channel at each end of the plate with a solid or cut-away top surface, and/or holes and/or slots for connection of the flume plate to anchor rods and may be configured to overlap one another when placed side by side. The present invention also includes a method of installing underdrain laterals in a filter, including arranging a grid of anchor rods on a filter floor such that anchor rods are provided on both sides of the flume, and providing at least one underdrain flume plate adapted for attachment to the anchor rods such that the flume plate covers the flume.