Patents by Inventor David C. Griffis
David C. Griffis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9097058Abstract: A window system for a vehicle includes a glazing assembly, a frame member having a portion for receiving the glazing assembly, and a mounting clip having a body and an extension that extends outwardly from the body of the mounting clip. The body of the mounting clip is configured to be attached to a body portion of a vehicle and the extension is configured to be attached to the frame member.Type: GrantFiled: February 23, 2011Date of Patent: August 4, 2015Assignee: Ricon Corp.Inventors: Stanton D. Saucier, David C. Griffis, Simon Evans
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Patent number: 8561351Abstract: A solid skirt seal mounted to the bottom edge of a slide-glide door panel hinged to rotate about an axis generally parallel to the bottom edge of the door panel, a spring biasing the hinged skirt seal to rotate the lower edge of the skirt seal in a downward direction, and a flexible cover extending between the lower edge of the skirt seal and the lower edge of the door panel.Type: GrantFiled: April 22, 2009Date of Patent: October 22, 2013Assignee: Wabtec Holding Corp.Inventors: Peter Heidrich, David C. Griffis
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Publication number: 20130205673Abstract: A window system for a vehicle includes a glazing assembly, a frame member having a portion for receiving the glazing assembly, and a mounting clip having a body and an extension that extends outwardly from the body of the mounting clip. The body of the mounting clip is configured to be attached to a body portion of a vehicle and the extension is configured to be attached to the frame member.Type: ApplicationFiled: February 23, 2011Publication date: August 15, 2013Applicant: RICON CORP.Inventors: Stanton D. Saucier, David C. Griffis, Simon Evans
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Patent number: 8291644Abstract: A locking mechanism (100) for use with a pneumatic cylinder/differential engine for a power-operated door including a locking rod (20), a plunger (24) associated with the locking rod (20) to cause extension and retraction of the locking rod (20) with respect to a door opening/closing gear (46), and a spring member (34) associated with the plunger (24) for maintaining the plunger (24) and the locking rod (20) in an extended position during a door closed position. An aperture (46a) is located through a sidewall portion of the gear hub (46b) which is capable of receiving an end (20a) of the locking rod (20) 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.Type: GrantFiled: May 1, 2008Date of Patent: October 23, 2012Assignee: Wabtec Holding Corp.Inventors: Gennady Plavnik, Frank Golemis, Michael O'Neill, David C. Griffis, Peter Heidrich
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Patent number: 8171672Abstract: A removable teeter lever and gear assembly arrangement (100) for use with a pneumatic cylinder/differential engine for operating vehicle doors. The arrangement comprises a teeter lever (16), which is associated with the vehicle doors, a gear assembly (17) having a toothed portion and an output shaft (20) extending therethrough, and at least one securing member for removably securing and/or retaining the teeter lever (16) and the gear (17) on the output shaft (20). The securing member comprises at least one retention key (18a, 19a) which allows the arrangement to be easily disassembled for maintenance and/or replacement thereof.Type: GrantFiled: May 1, 2008Date of Patent: May 8, 2012Assignee: Wabtec Holding Corp.Inventors: Gennady Plavnik, David C. Griffis, Michael O'Neill
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Patent number: 8033597Abstract: A transit vehicle glazing assembly comprises a window pane, a box-shaped first frame that surrounds the opening covered by the window pane, a second frame sized to fit within the space enclosed by the first frame secured to the window pane by an adhesive, an elastomeric strip positioned in the space between the flanges and a plurality of U-shaped clips securing the second frame to the first frame.Type: GrantFiled: April 1, 2009Date of Patent: October 11, 2011Assignee: Wabtec Holding Corp.Inventors: David C. Griffis, Peter Heidrich
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Publication number: 20110203180Abstract: A solid skirt seal mounted to the bottom edge of a slide-glide door panel hinged to rotate about an axis generally parallel to the bottom edge of the door panel, a spring biasing the hinged skirt seal to rotate the lower edge of the skirt seal in a downward direction, and a flexible cover extending between the lower edge of the skirt seal and the lower edge of the door panel.Type: ApplicationFiled: April 22, 2009Publication date: August 25, 2011Applicant: WABTEC HOLDING CORP.Inventors: Peter Heidrich, David C. Griffis
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Publication number: 20100199564Abstract: A locking mechanism (100) for use with a pneumatic cylinder/differential engine for a power-operated door including a locking rod (20), a plunger (24) associated with the locking rod (20) to cause extension and retraction of the locking rod (20) with respect to a door opening/closing gear (46), and a spring member (34) associated with the plunger (24) for maintaining the plunger (24) and the locking rod (20) in an extended position during a door closed position. An aperture (46a) is located through a sidewall portion of the gear hub (46b) which is capable of receiving an end (20a) of the locking rod (20) 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.Type: ApplicationFiled: May 1, 2008Publication date: August 12, 2010Applicant: WABTEC HOLDING CORP.Inventors: Gennady Plavnik, Frank Golemis, Michael O'Neill, David C. Griffis, Peter Heidrich
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Publication number: 20100194151Abstract: A transit vehicle glazing assembly comprises a window pane, a box-shaped first frame that surrounds the opening covered by the window pane, a second frame sized to fit within the space enclosed by the first frame secured to the window pane by an adhesive, an elastomeric strip positioned in the space between the flanges and a plurality of U-shaped clips securing the second frame to the first frame.Type: ApplicationFiled: April 1, 2009Publication date: August 5, 2010Applicant: WABTEC HOLDING CORP.Inventors: David C. Griffis, Peter Heidrich
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Publication number: 20100170158Abstract: A removable teeter lever and gear assembly arrangement (100) is provided for use with a pneumatic cylinder/differential engine for operating vehicle doors. The arrangement comprises a teeter lever (16), which is associated with the vehicle doors, a gear assembly (17) having a toothed portion and an output shaft (20) extending therethrough, and at least one securing member for removably securing and/or retaining the teeter lever (16) and the gear (17) on the output shaft (20). The securing member comprises at least one retention key (18a, 19a) which allows the arrangement to be easily disassembled for maintenance and/or replacement thereof.Type: ApplicationFiled: May 1, 2008Publication date: July 8, 2010Applicant: WABTEC HOLDING CORP.Inventors: Gennady Plavnik, David C. Griffis, Michael O'Neill
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Patent number: 7320496Abstract: A sealing arrangement for a door of a transit vehicle with an angularly disposed floor portion incorporates a rotatably disposed driving member in combination with a driven member attached to the sealing arrangement to enable vertical movement thereof for providing a weather seal when the door is closed and accommodating the angularly disposed floor portion when the door is open and the door is disposed within the transit vehicle and above the floor portion. An inner and outer cover may be provided at the bottom edge of the door for esthetic purposes.Type: GrantFiled: October 25, 2006Date of Patent: January 22, 2008Assignee: Westinghouse Air Brake Technologies CorporationInventors: David C. Griffis, Wieslaw W. Tomczyk, Fotios Golemis
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Patent number: 7143546Abstract: A sealing arrangement for a door of a transit vehicle with an angularly disposed floor portion incorporates a rotatably disposed driving member in combination with a driven member attached to the sealing arrangement to enable vertical movement thereof for providing a weather seal when the door is closed and accommodating the angularly disposed floor portion when the door is open and the door is disposed within the transit vehicle and above the floor portion. An inner and outer cover may be provided at the bottom edge of the door for esthetic purposes.Type: GrantFiled: December 5, 2003Date of Patent: December 5, 2006Assignee: Westinghouse Air Brake Technologies CorporationInventors: David C. Griffis, Wieslaw W. Tomczyk, Fotios Golemis
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Patent number: 6572177Abstract: A cover system for at least one flexible signal connection in a door system for a transit vehicle having at least one door panel mounted to open and close by rotation about an axis. The cover system includes an outer cover for the flexible signal connection(s), the outer cover being for attachment to either a stationary portion of the transit vehicle door system or one of the door panels. The outer cover encloses a first passage. The cover system also has an inner cover for the flexible signal connection(s), the inner cover being for attachment to the opposite one of the stationary portion of the transit vehicle door system and a door panel. The inner cover is positionable within the first passage while the door panel rotates about the axis between an open position and a closed position of the door panel. The inner cover has a second passage therein, the second passage being for the flexible signal connection(s).Type: GrantFiled: January 29, 2001Date of Patent: June 3, 2003Assignee: Westinghouse Air Brake Technologies CorporationInventor: David C. Griffis
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Publication number: 20020101094Abstract: A cover system for at least one flexible signal connection in a door system for a transit vehicle having at least one door panel mounted to open and close by rotation about an axis. The cover system includes an outer cover for the flexible signal connection(s), the outer cover being for attachment to either a stationary portion of the transit vehicle door system or one of the door panels. The outer cover encloses a first passage. The cover system also has an inner cover for the flexible signal connection(s), the inner cover being for attachment to the opposite one of the stationary portion of the transit vehicle door system and a door panel. The inner cover is positionable within the first passage while the door panel rotates about the axis between an open position and a closed position of the door panel. The inner cover has a second passage therein, the second passage being for the flexible signal connection(s).Type: ApplicationFiled: January 29, 2001Publication date: August 1, 2002Inventor: David C. Griffis
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Patent number: D562104Type: GrantFiled: October 13, 2006Date of Patent: February 19, 2008Assignee: Wabtec Holding CorporationInventor: David C. Griffis
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Patent number: D582750Type: GrantFiled: December 13, 2007Date of Patent: December 16, 2008Assignee: Wabtec Holding Corp.Inventors: Peter Heidrich, David C. Griffis
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Patent number: D749930Type: GrantFiled: April 26, 2013Date of Patent: February 23, 2016Assignee: Wabtec Holding Corp.Inventors: Daniel A. Sanchez, Fotios Golemis, David C. Griffis, Gary L. Takata