Convertible Patents (Class 105/438)
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Patent number: 10695238Abstract: A mountable elevator system includes one or more horizontal bearing frames and one or more vertical frames, each vertical frame being connected to one of the horizontal bearing frames. One or more step stringers extend between the one or more horizontal bearing frames and the one or more vertical frames. A multi-piece platform includes multiple step pieces mounted on the one or more step stringers. The cabling is configured to extend and retract the multi-piece platform. One or more step support locking structures can be configured to secure a top step piece of the multi-piece platform, wherein the multiple step pieces of the multi-piece platform separate into multiple vertical levels as the multi-piece platform extends. The multi-piece platform is configured to raise and lower relative to an entry door of a vehicle.Type: GrantFiled: September 17, 2019Date of Patent: June 30, 2020Inventor: Charlie Homer Thompson
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Patent number: 9902406Abstract: Contemplated ladder assemblies include: a) at least two rails, b) at least one step, wherein each step is coupled to the at least two rails, such that the rails are relatively vertical and the steps are relatively horizontal, c) at least one grappling footing peg, wherein the peg is operationally coupled with a rail, d) at least one safety handle, wherein the handle is coupled with at least one rail, and e) at least one commuter train, passenger train or railway car coupling fixture, wherein the coupling fixture operationally engages with a mating fixture on the commuter train, passenger train or railway car.Type: GrantFiled: January 29, 2014Date of Patent: February 27, 2018Inventors: Carlos Guzman, John Guzman
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Patent number: 9347201Abstract: An emergency egress system with an access panel assembly, a latch assembly, a handle assembly, a fixed ladder portion, and a slidable ladder portion, is disclosed. The access panel assembly includes a door panel. The latch assembly and the handle assembly are attached to the door panel. The handle assembly has a holding portion that works in conjunction with the latch assembly that has a wing portion. The holding portion is manipulable to rotate the latch assembly in the locked position to hold the fixed ladder portion and the slidable ladder portion together via the wing portion, which is to maintain the door panel in the closed position. The holding portion is manipulable to rotate the latch assembly to the unlocked position to allow the wing portion to rotate and release the slidable ladder portion for exit.Type: GrantFiled: April 8, 2015Date of Patent: May 24, 2016Assignee: Caterpillar Global Mining LLCInventor: Sebastian Capraro
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Patent number: 6443072Abstract: A door system for a railway car which provides for both high and low level access. The door system comprises a sliding door, a platform displaceable between raised and lowered positions for respectively clearing and covering the stairwell of the railway car, and a threshold extending laterally outwardly of the sliding door to provide a continuation of the platform when displaced to its lowered position. The threshold is releasably connected to the sliding door for co-linear movement with the sliding door when the platform is raised, while remaining stationary in a functional position when the platform is lowered for enabling high level boarding.Type: GrantFiled: June 5, 2001Date of Patent: September 3, 2002Assignee: Tekdata Inc.Inventor: Magdy A. Rizk
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Publication number: 20010025585Abstract: A door system for a railway car which provides for both high and low level access. The door system comprises a sliding door, a platform displaceable between raised and lowered positions for respectively clearing and covering the stairwell of the railway car, and a threshold extending laterally outwardly of the sliding door to provide a continuation of the platform when displaced to its lowered position. The threshold is releasably connected to the sliding door for co-linear movement with the sliding door when the platform is raised, while remaining stationary in a functional position when the platform is lowered for enabling high level boarding.Type: ApplicationFiled: June 5, 2001Publication date: October 4, 2001Inventor: Magdy A. Rizk
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Patent number: 6263804Abstract: A door system for a railway car which provides for both high and low level access. The door system comprises a sliding door, a platform displaceable between raised and lowered positions for respectively clearing and covering the stairwell of the railway car, and a threshold extending laterally outwardly of the sliding door to provide a continuation of the platform when displaced to its lowered position. The threshold is releasably connected to the sliding door for co-linear movement with the sliding door when the platform is raised, while remaining stationary in a functional position when the platform is lowered for enabling high level boarding.Type: GrantFiled: July 22, 1999Date of Patent: July 24, 2001Assignee: Tekdata Inc.Inventor: Magdy A. Rizk
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Patent number: 4615275Abstract: There is provided an emergency exit apparatus disposed on a wall surface of a train car. A hinged door assembly comprises a hinged door portal frame and a hinged door carrying a stair on its inner surface. In one embodiment, the lower edge of the hinged door portal frame is coupled to a wall surface by a horizontal hinge, while the hinged door is coupled to the hinged door portal frame by a vertical hinge. In a second embodiment, the side edge of the portal frame is coupled to a wall surface by a vertical hinge, while the hinged door is coupled to the portal frame by a horizontal hinge. When swung open on the horizontal hinge, the inner surface of the door provides a ramp for emergency exit; when swung open on the vertical hinge, the portal frame including the door provides an opening for normal entrance and exit.Type: GrantFiled: November 19, 1984Date of Patent: October 7, 1986Assignee: Kawasaki Jukogyo Kabushiki KaishaInventor: Masashi Ishizuka
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Patent number: 4175495Abstract: An entrance step arrangement particularly for short distance vehicles, especially rail vehicles, which has at least one intermediate step, a cover for covering up the step or steps, a foldable guard plate, and transmission elements interposed between a drive and movable element, and safety devices for preventing faulty actuation of the cover, guard plate, and transmission elements. The axes of rotation of the movable elements are arranged horizontal and parallel to the outer contour of the vehicle. The guard plate which is foldable outwardly carries a step, and the step cover is pivotable inwardly behind the tread edge of the floor of the vehicle.Type: GrantFiled: May 11, 1977Date of Patent: November 27, 1979Assignee: Maschinenfabrik Augsburg-Nurnberg AktiengesellschaftInventor: Karl-Heinz Kleim
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Patent number: 3996860Abstract: An enclosure for a vehicle end opening formed between two side walls includes two bi-fold door assemblies each comprising inner and outer panels pivotally connected to one another and with the free edge of the outer panels in turn connected to a fixed pivot point adjacent the side of the end opening wherein, each inner panel may be folded outwardly 180.degree. about its pivoted connecting means and the thus folded assembly subsequently pivoted about its fixed pivot point 270.degree. into parallel relationship with the vehicle side wall. The pivotal connecting means joining each pair of inner and outer panels includes catch means serving to secure the assembly in both the closed position enclosing the vehicle end opening as well as in the stored position parallel with the vehicle side wall.Type: GrantFiled: March 6, 1975Date of Patent: December 14, 1976Assignee: Portec, Inc.Inventors: Chandrakant D. Ravani, Ronald G. Schluchter, Jaroslaw J. Rostafinski, Charles M. Burt