1
Layton A Wise: Facemask for abrasive service. Mine Safety Appliances Company, Reed Smith Shaw & McClay, March 10, 1987: US04648394 (36 worldwide citation)

A viewing assembly for use in the lens opening of a protective facemask comprising: a transparent housing adaptor sealingly mated to the lens: a substantially rectangular retainer for a lens cartridge assembly comprising opposing planar panels and providing in the latched position a recess that seal ...


2
Layton A Wise, James R Tomlinson: Pivot joint for faceshield assembly. Mine Safety Appliances Company, James G Uber, Douglas Hanscom, July 24, 2001: US06264392 (31 worldwide citation)

A faceshield that is securable to a protective helmet or headband having an indexable pivot joint which utilizes an interference fit between an O-ring and radially spaced lug sets. The O-ring is compressed when the crests of the two sets of lugs are radially aligned. This interference holds the face ...


3
Layton A Wise, Peter A Frank: Self-contained breathing apparatus having a personal alert safety system integrated therewith. Mine Safety Appliances Company, James G Uber, Paul D Bangor Jr, July 14, 1998: US05781118 (16 worldwide citation)

The present invention provides a self-contained breathing apparatus ("SCBA") having a personal alert safety system ("PASS") fully integrated therewith. The PASS is structurally integrated with the SCBA such that it is protected from damage by both the air cylinder and the frame. The integrated PASS ...


4
Larry Depew, Joseph Birli, Lou Monaco, Greg Skillicom, Dan Zimet, Dave Potts, Michael T Rupert, John L Hierbaum, Layton A Wise, F Joseph Hersick: Communications device for a protective helmet. Mine Safety Appliances Company, James G Uber, Richard L Byrne, September 19, 2006: US07110743 (15 worldwide citation)

A communications device for use with a protective helmet having a headband is provided. Generally, the communications device provides support member for a bone conduction microphone that is easily added to and removed from the protective helmet, allowing the communications device to be readily used ...


5
Layton A Wise, Robert F Menold: Breathing apparatus with an automatic firing mechanism. Mine Safety Appliances Company, Brown Flick & Peckham, June 3, 1980: US04205673 (14 worldwide citation)

A candle for producing oxygen when ignited is mounted in the bottom of a chemical canister that is to be inserted in an open-bottom breathing apparatus receptacle provided with a depending projection. A primer for igniting the candle extends through the bottom of the canister and is exposed in the t ...


6
Layton A Wise: Breathing apparatus having a flexible manifold connected between a plurality of air cylinders. Mine Safety Appliances Company, James G Uber, Paul D Bangor Jr, December 17, 1996: US05584289 (14 worldwide citation)

A self-contained breathing apparatus having two or more air storage cylinders, each of the cylinders in gas-flow communication with a flexible manifold which is in gas-flow communication with a facepiece. Preferably, the flexible manifold includes a manifold unit connected to a flexible conduit for ...


7
Layton A Wise, David G Aaron: Protective garment cooling device. Mine Safety Appliances Company, Reed Smith Shaw & McClay, July 2, 1991: US05027807 (14 worldwide citation)

A protective garment or suit made of fluid impermeable material for use by workers in toxic and hostile environments having an air cooling deivce that divides air from a single airline supply into two separate fractions, one to provide respiratory air at the proper volume and pressure to a breathing ...


8
Richard A Erth, Layton A Wise: Safety helmet assembly. Mine Safety Appliances Company, James G Ulber, Henry E Bartony Jr, November 20, 2001: US06317895 (12 worldwide citation)

A safety helmet having a rigid outer shell, a shock absorbing layer inside of the outer shell, and a shield layer fabricated from a strong and lightweight material positioned between the outer shell and the shock absorbing layer. The shield layer is preferably free to move relative to the outer shel ...


9
Layton A Wise: Air supplying hood. Mine Safety Appliances Co, Carothers & Carothers, August 21, 1984: US04466432 (11 worldwide citation)

An air supplying hood has a top wall, to which the upper edge of a flexible plastic front wall is connected, with the upper portion of the front wall forming a transversely curved front window. A flexible back wall behind the window is connected with the top wall and the sides of the window to form ...


10
Layton A Wise: Breathing apparatus chemical canister with dust seal. Mine Safety Appliances Company, Brown Flick & Peckham, July 15, 1980: US04212846 (7 worldwide citation)

A breathing apparatus chemical canister includes a central vertical tube, around which there is a body of chemical granules covered by an upper sheet of filtering material provided with inner and outer downwardly extending flanges engaging the tube and the side of the canister. Disposed between the ...