Edward R Niederriter, 7315372 Fiddlesticks Blvd, Fort Myers, FL 33912

8157330, Apr 17, 2012

Apr 30, 2009

12/433311

Edward F. Niederriter - Fryburg PA, US

Joy MM Delaware, Inc. - Wilmington DE

E21C 35/24

299 16

A mining machine includes a light source and a roof support guide for detecting the relative angular alignment between the mining machine and the roof support. The light source in the form of a laser on the mining machine, directed toward the roof support. The roof support guide is on the roof support above the mining machine, so that when the alignment between the mining machine and the roof support is as desired, light from the light source falls in a predetermined location relative to the roof support guide. When the mining machine is not in proper alignment with the roof support, the light source does not fall within the predetermined location relative to the roof support guide. When a mining machine operator detects that the light from the light source is not falling within the predetermined location relative to the roof support guide, the operator then adjusts the tilt of the mining machine using hydraulic jacks to cause the light from the light source to again fall within the predetermined location relative to the roof support guide.

8157331, Apr 17, 2012

Nov 16, 2009

12/619166

Edward F. Niederriter - Fryburg PA, US
Gregory S. Wilson - Oil City PA, US

Joy MM Delaware, Inc. - Wilmington DE

E21C 35/24

299 16

A control system monitors the angle of each ranging arm, with respect to the mainframe of the machine. While the machine is in a defined zone along the face, if the angle of the arm is detected to be lower than a parameter defined set-point called the undercut limit, the control system does not allow the arm to be lowered further. When entering the run of face from either gate end, if either of the ranging arms are below the set point, the horizontal movement of the shearer is stopped, and an alarm message is generated, and a warning light begins to flash, alerting the operator that he must raise the arm before horizontal movement of the shearer can be enabled.

8439451, May 14, 2013

May 29, 2009

12/475456

Edward F. Niederriter - Fryburg PA, US
Shawn W. Franklin - Emlenton PA, US
Philip R. Strydom - Franklin PA, US

Joy MM Delaware, Inc. - Wilmington DE

E21C 25/06

299 42, 74606 A

A cooling system for the gear case in the ranging arm of a longwall shearer, the ranging arm including a plurality of single gears mounted in a row within an elongated housing. The cooling system includes a coolant injection system in each of the single gears, each coolant injection system including a longitudinal opening in the gear axle, and a coolant injection tube mounted inside the longitudinal opening. The coolant injection tube has a diameter smaller than the diameter of the longitudinal opening. A coolant supply line is connected to and in communication with the coolant injection tube, and a coolant outlet is connected to and in communication with the longitudinal opening adjacent the one end of the longitudinal opening, so that coolant leaving the end of the coolant injection tube travels back along the coolant injection tube and then out of the gear axle thereby removing heat from the single gear.

8602502, Dec 10, 2013

Dec 19, 2011

13/329762

Edward F. Niederriter - Fryburg PA, US
Shawn W. Franklin - Emlenton PA, US

Joy MM Delaware, Inc. - Wilmington DE

E21C 29/02

299 42, 299 53

A longwall shearer mining machine that is mounted on a rail generally includes a first chassis portion with a first cutting arm mounted thereto and a second chassis portion with a second cutting arm mounted thereto. Each of the first and the second chassis portions is slidably coupled to the rail. The first and second chassis portions are coupled at a pivot joint. The pivot joint allows each of the first and the second chassis portions to adjust its respective orientation with respect to a horizontal ground plane when the articulated shearer travels over a hump or a valley, thereby maintaining sufficient headroom.

8622481, Jan 7, 2014

Jan 25, 2011

13/013627

Edward F. Niederriter - Fryburg PA, US
Shawn W. Franklin - Emlenton PA, US
James E. Haughey - Butler PA, US

Joy MM Delaware, Inc. - Wilmington DE

E21C 27/20
F16G 13/16

299 43, 59 781

A chain link assembly, a cable chain assembly and a mining system. The cable handler individual links may include an enclosed section for the fiber optic cable separate from other services for the machine. A flexible material or other structure may assemble the fiber optic cable in the cable handler in a manner in which it “snakes” about the centerline to provide ample slack in the fiber optic cable to, for example, prevent over tension.

2006000, Jan 12, 2006

Jul 12, 2004

10/889195

Edward Niederriter - Fryburg PA, US
Robert Aaron - Marble PA, US

H02G 3/08

174050000

An assembly includes a structural member or frame that supports a load. The frame has a rectangular opening therein to a cavity within the frame that is adapted to house electrical components therein. There are a plurality of opening screw holes in the frame and spaced apart completely around and outside of the opening. The mining apparatus also includes a cover for the opening, the cover including a plate with an area larger than the opening, the plate having a first surface and an opposite second surface. The cover also includes a lip protruding from the second surface, the lip extending over and around and enclosing an area of the second surface and defining a protrusion that, when the cover is laid over the opening, fits closely within the opening.

2011030, Dec 22, 2011

Feb 28, 2011

13/036920

Edward F. Niederriter - Fryburg PA, US
Shawn W. Franklin - Emlenton PA, US
Philip R. Strydom - Franklin PA, US
Robert P. Aaron - Marble PA, US

F16H 57/04
E21C 25/06

299 42, 74412 R

A longwall shearer or other machine with a gear case for transmitting rotational power from a drive to a driven member. The gear case comprises a drive, a driven member, at least one axle including at least one aperture formed therein to circulate cooling fluid through the axle, and a gear mounted to rotate on the axle and positioned to transmit power from the drive to the driven member.

2012010, May 3, 2012

Oct 26, 2011

13/282038

Edward F. Niederriter - Fryburg PA, US
Shawn W. Franklin - Emlenton PA, US

E21C 25/68
F16H 3/44
E21C 25/06
F16H 3/02

299 43, 74 8917

A mining machine for mining along a mining face includes a longwall shearer, a product removal system for removing product cut by the longwall shearer, and a drive system for moving the longwall shearer along a rack extending along the mining face. The drive system including a housing coupled to the longwall shearer, a motor, and a sprocket at least partially positioned within the housing and drivingly connected to the motor. The sprocket is engaged with the rack and moves the longwall shearer along the rack. A shoe maintains the sprocket in engagement with the rack. The housing is configured to rotate relative to the longwall shearer such that the drive system adjusts for vertical height variations and horizontal variations of the rack.