Matthew L Chapman

US Patent:

20170327070, Nov 16, 2017

Filed:

May 11, 2017

Appl. No.:

15/592797

Inventors:

- Wilmerding PA, US
Matthew Chapman - Wheeling IL, US
Karl J. Kobel - Wildwood IL, US
Richard Peck - Richmond IL, US

International Classification:

B60R 21/12
E05B 83/42
E05D 11/00
E05F 15/60
E05D 7/00
E05D 15/16
B62D 47/02

Abstract:

A barrier door for a protective enclosure includes a lower section and an upper section. The upper section includes an outer stationary portion and an inner movable portion disposed within the outer stationary portion. The outer stationary portion and the inner movable portion are light transmissive. The inner movable portion is movable in a vertical direction and is coupled to a lift device disposed in the lower section. The lift device is configured to move the inner movable portion between a lowered position in which the inner movable portion is at least partially withdrawn into the lower section to form an opening in the upper section and a raised position in which the inner movable portion is extended to close the opening.

US Patent:

20140340071, Nov 20, 2014

Filed:

Sep 25, 2012

Appl. No.:

14/004288

Inventors:

- Wilmerding PA, US
Matthew Chapman - Wheeling IL, US

International Classification:

G01B 7/30

US Classification:

324 711

Abstract:

A rotational position sensing device for sensing rotation of an axially adjustable shaft of a shaft and arm assembly of a door that does not require readjustment after the shaft and arm assembly are adjusted includes a fixed bracket supporting a post, a position sensor having an upper portion, a lower portion and an extended portion, and a rotating portion. The extended portion extends from the upper portion of the position sensor and constrains the post of the bracket such that the upper portion of the position sensor is unable to axially rotate relative to the bracket. The rotating section is adapted to be fixed to the shaft and engage with the lower portion of the position sensor, such that the rotating portion rotates relative to the upper portion of the position sensor.

US Patent:

20140215757, Aug 7, 2014

Filed:

Sep 24, 2012

Appl. No.:

14/007089

Inventors:

Matthew Chapman - Wheeling IL, US

Assignee:

WABTEC HOLDING CORP. - Wilmerding PA

International Classification:

B61D 19/00
E05D 15/16

US Classification:

16 91

Abstract:

According to this invention there is provided an adjustable base plate structure for a transit door comprised of a plurality of fixed dimension elements and a plurality of variable dimension elements for accommodating a plurality of door sizes and types. The base plate structure comprises a roller channel for spanning the width of the door and a center brace for being secured to the channel centered on the roller channel. Mounting brackets are secured to the vehicle or door frame and the roller channel.

US Patent:

20140123790, May 8, 2014

Filed:

Sep 25, 2012

Appl. No.:

14/004331

Inventors:

- Wilmerding PA, US
Matthew Chapman - Wheeling IL, US

Assignee:

WABTEC HOLDING CORP. - Wilmerding PA

International Classification:

F16H 25/20

US Classification:

74 8923

Abstract:

A height adjustment device for a transit shaft and arm assembly that enables height adjustments without significant disassembly of a transit door. An additional advantage is that the device does not require the use of shims, spacers or adjustment rings to adjust the height of the shaft and arm assemblies. Rotation of a nut threaded on the shaft allows for the adjustment of how much of the shaft hangs below a support member and a bearing. A surface of the nut bears on the bearing and the attached shaft and arm assembly hangs from the bearing and the support member the bearing is attached to. This arrangement allows the arm assembly to pivot along the longitudinal axis of the shaft. This arrangement also allows the height of the shaft and arm assembly to change with changes in position of the nut by threading the nut along the shaft.