Wabtec Holding Corporation

Sanford Gmbh

Gennady Plavnik

Andrew M Bielecki

David C Griffis

Michael O'Neill

Nicholas M Nanos

Neville E Andrews

Peter Heidrich

Neville Andrews

Frank Golemis

Michael O'neill

A cushioning system for a pneumatic cylinder powered differential engine door opening and closing device for use in passenger transportation vehicles wherein the cushioning initiation point can be adjusted. This cushioning initiation point is adjusted through the use of a linearly adjustable slider member within the large cylinder. The slider is linearly adjustable through the use of an adjustment screw located outside of the pneumatic cylinder and allows one to adjust the time and the mode of the opening/closing of power doors, without disassembly of the cylinder, and significantly improve the safety of the passenger.

Cushioning system for pneumatic cylinder of differential engine

A locking mechanism () for use with a pneumatic cylinder/differential engine for a power-operated door including a locking rod (), a plunger () associated with the locking rod () to cause extension and retraction of the locking rod () with respect to a door opening/closing gear (), and a spring member () associated with the plunger () for maintaining the plunger () and the locking rod () in an extended position during a door closed position. An aperture () is located through a sidewall portion of the gear hub () which is capable of receiving an end () of the locking rod () when the locking rod is in an extended position to lock the door in a door closed position. The invention also includes an emergency door opening mechanism enabling manual opening of the doors in case of an emergency.

Locking mechanism for pneumatic differential engine for power-operated doors

A removable teeter lever and gear assembly arrangement () for use with a pneumatic cylinder/differential engine for operating vehicle doors. The arrangement comprises a teeter lever (), which is associated with the vehicle doors, a gear assembly () having a toothed portion and an output shaft () extending therethrough, and at least one securing member for removably securing and/or retaining the teeter lever () and the gear () on the output shaft (). The securing member comprises at least one retention key () which allows the arrangement to be easily disassembled for maintenance and/or replacement thereof.

Output shaft, teeter lever and pinion gear arrangement for pneumatic differential engine

A writing instrument includes a travel multiplier mechanism that includes a cam member that pivots about a pivot axis in response to motion of a push button member. The cam member engages a sliding piston member in order to provide a travel multiplying effect such that a distance of travel of the sliding piston member exceeds a distance traveled by the push button member.

Travel multiplier mechanisms for writing instruments

A writing instrument includes a travel multiplier mechanism that includes a cam member that pivots about a pivot axis in response to motion of a push button member. The cam member engages a sliding piston member in order to provide a travel multiplying effect such that a distance of travel of the sliding piston member exceeds a distance traveled by the push button member. The cam member may be configured to rotate about an axis that is located in a plane perpendicular to a primary axis of a barrel of the writing instrument.

Growing community of inventors

Indian Creek, IL, United States of America

Gennady Plavnik