JAMES ALLEN HENDRICKSON
Engineers in Freedom, PA

6486473, Nov 26, 2002

Feb 8, 2001

09/779926

Thomas M. Salapow - Ellwood City PA
David C. Demyan - Gibsonia PA
James A. Hendrickson - Freedom PA
Michael F. Becker - Bethel Park PA
Anthony J. Brewer - Pittsburgh PA
Eric R. Colburn - Wexford PA
Roland Zeder - Pittsburgh PA

Mine Safety Applicances Company - Pittsburgh PA

G06T 100

250330, 250332, 250333, 348222, 348229

A thermal imaging camera having improved durability and ergonomic features including generally a seamless housing encompassing a thermal imaging core, a first handle, and a battery compartment. The housing is preferably positioned at a first end of the first handle and the battery compartment is positioned at the opposite end of the first handle. By positioning the first handle intermediate between the housing and the battery compartment, the center of gravity of the thermal imaging camera coincides generally with the handle when the thermal imaging camera is in use, that is when batteries are present within the battery compartment. The camera can also include a second handle positioned between the housing and the battery compartment, the second handle is preferably oriented generally parallel to and spaced apart from the first handle to facilitate passing of the thermal imaging camera between users. The camera also has improved water resistance, shock-resistance and other operational features.

6649912, Nov 18, 2003

Aug 29, 2002

10/231328

Thomas M. Salapow - Ellwood City PA
David C. Demyan - Gibsonia PA
James A. Hendrickson - Freedom PA
Michael F. Becker - Bethel Park PA
Anthony J. Brewer - Pittsburgh PA
Eric R. Colburn - Wexford PA
Roland Zeder - Pittsburgh PA

Mine Safety Appliances Company - Pittsburgh PA

G01J 504

250330, 250332

A thermal imaging camera having improved durability and ergonomic features including generally a seamless housing encompassing a thermal imaging core, a first handle, and a battery compartment. The housing is preferably positioned at a first end of the first handle and the battery compartment is positioned at the opposite end of the first handle. By positioning the first handle intermediate between the housing and the battery compartment, the center of gravity of the thermal imaging camera coincides generally with the handle when the thermal imaging camera is in use, that is when batteries are present within the battery compartment. The camera can also include a second handle positioned between the housing and the battery compartment, the second handle is preferably oriented generally parallel to and spaced apart from the first handle to facilitate passing of the thermal imaging camera between users. The camera also has improved water resistance, shock-resistance and other operational features.

6481023, Nov 19, 2002

Aug 24, 2001

09/939364

Layton A. Wise - Washington PA
James A. Hendrickson - Freedom PA
Glenn C. Davis - Apollo PA
James G. Tomlinson - Pittsburgh PA
Paul A. Zeller - Pittsburgh PA

Mine Safety Appliances Company - Pittsburgh PA

A42B 300

2416, 2418

A suspension for a protective helmet having a headband section that encompasses at least a part of a users head and a crown support section connected to the headband section. The headband section and the crown support section of the suspension are fabricated from an integral piece of material. The suspension system may also have a headband comprising a section of elastic material. Alternatively, the headband may comprise a forward band having a first section to contact the forehead of the user and a second section adapted to be positioned between the users head and the crown support section of the suspension during use thereof.

2012019, Aug 9, 2012

Mar 14, 2008

12/075935

Eric J. Beck - Valencia PA, US
Peter A. Frank - London, GB
Terry G. Giles - Purley, GB
James A. Hendrickson - Freedom PA, US

F41H 1/02

2 25

An impact sensor system includes at least one impact sensor including at least a first conductive layer, at least a second conductive layer, and at least one insulating layer between the first conductive layer and the second conductive layer. The insulating layer maintains the first conductive layer and the second conductive layer in spaced, non-contacting relation. The first conducting layer and the insulating layer are deformable upon an impact to the first conducting layer such that separation between the first conducting layer and the second conducting layer decreases upon an impact of a predefined nature. The impact sensor system also includes circuitry in connection with the impact sensor to measure a change in at least one electrical property of the impact sensor resulting from the decrease in the separation between the first conducting layer and the second conducting layer. A body armor system to be worn by a person includes at least one section of body armor and at least one impact sensor associated with at least a section of the body armor.

5119175, Jun 2, 1992

Aug 17, 1990

7/569107

Lawrence J. Long - Crafton PA
James A. Hendrickson - Freedom PA

Westinghouse Electric Corp. - Pittsburgh PA

H01L 2504

357 82

A high power density semiconductor module of reduced size and weight wherein a fusion element assembly for meeting electrical power processing requirements is nested in a hollow casing for both electrically insulating and operatively cooling by a single fluid medium. A pair of electrically conductive terminals penetrates the casing at opposite ends to make an electrical path through the fusion element assembly which resides within the casing as a stack in which each semiconductor fusion element is interleaved with plural heat sink elements undergoing a uniform compressive loading parameter. The stack is electrically insulated and cooled through transverse grooves in the fusion element assembly, which in one embodiment for space based utilization, is by way of finned heat sink or backing plate elements for passaging a dual function cryogen fluid such as supercritical liquid hydrogen. A terrestrial aviation or marine based utilization, provides that an ester base cooling oil having good dielectric properties may be instead used.

7218009, May 15, 2007

Mar 30, 2005

11/093964

James A. Hendrickson - Freedom PA, US
Roy D. Marangoni - Pittsburgh PA, US
Matthew J. Palamara - Pittsburgh PA, US

Mine Safety Appliances Company - Pittsburgh PA

F03B 13/00

290 1R, 290 1 A, 290 54

A breathing system includes a container to store a gas under pressure, wherein the gas includes air or oxygen. The container includes an outlet through which the gas exits the container. The breathing system further includes a generator system including a generator in operative connection with the container outlet such that energy is supplied to the generator by the pressurized gas. The generator converts the energy supplied by the pressurized gas to electrical energy. The system further includes a fluid path in connection with the generator through which pressurized gas passes after providing energy to the generator and a respiration facepiece in fluid connection with the fluid path.

D464666, Oct 22, 2002

Feb 28, 2001

29/137833

Thomas M. Salapow - Ellwood City PA
David C. Demyan - Gibsonia PA
James A. Hendrickson - Freedom PA
Michael F. Becker - Bethel Park PA
Anthony J. Brewer - Pittsburgh PA
Eric R. Colburn - Wexford PA
Roland Zeder - Pittsburgh PA

Mine Safety Appliances Company - Pittsburgh PA

1601

D16206

8229142, Jul 24, 2012

Jan 3, 2008

12/006494

Vincent M. Colaizzi - Pittsburgh PA, US
James A. Hendrickson - Freedom PA, US
David Pickrell - State College PA, US
Jeremy Frank - Pine Grove Mills PA, US
Jacob Loverich - State College PA, US

Mine Safety Appliances Company - Cranberry Township PA

H04R 25/00

381190, 381150, 381162, 381152, 381398, 381191, 381423, 381396, 381426

A device includes a substrate and a transducer attached to the substrate, wherein the substrate includes a surface to which the transducer is attached and at least one edge member extending along at least a portion of the outside edge of the surface. The surface can be a generally planar surface. The edge member is stiffer than the surface. In several embodiments, the transducer is adapted to vibrate. The transducer can, for example, be selected from the group consisting of a piezoelectric transducer, an electrostrictive transducer and a magnetostrictive transducer. Preferably, the transducer is attached to the surface of the substrate by a metallic bonding agent and, more particularly, by welding.