Shiftable Patents (Class 280/166)
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Patent number: 6612596Abstract: A foldable footstool device for a vehicle of the present invention comprises a main beam fixed to a lower surface of a lower part of a vehicle and having hinge holes and stoppers at left and right sides thereof, respectively; a footstool installed rotatably about said hinge holes of the main beam and being supported by the stoppers; a first shaft extended from an end of the footstool; a link portion linking a lower inner wall of a door and a side sill of the lower part of the vehicle; a second shaft connected to the link portion in order to rotate in response to a rotation of the link portion; and a bevel gear part having a horizontal gear connected to the first shaft and a vertical gear connected to the second shaft. According to such foldable footstool device for a vehicle, the footstool is unfolded when the door is opened and the footstool is folded when the door is shut so that a width of the vehicle decreases in a state that the door is closed.Type: GrantFiled: December 17, 2001Date of Patent: September 2, 2003Inventors: Jun-Sung Jeon, Dong-Ho Kang
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Publication number: 20030132595Abstract: A retractable running board assembly is mounted to the frame of a vehicle. The running board is selectively extendable between a retracted position, which is close to the vehicle's frame, and a lower, laterally-outward extended position that facilitates easy entrance into and exit from the vehicle. A plurality of longitudinally spaced, selectively-actuated links connect the running board to the frame. A selectively-operable driving mechanism concertedly actuates each of the links to extend and retract the running board. When the driving mechanism is not operated, each link resists actuation and holds the running board in a fixed position relative to the frame.Type: ApplicationFiled: January 14, 2003Publication date: July 17, 2003Applicant: VENTRA GROUP INC.Inventors: Tony Fabiano, Joseph F. Scheuring, Terry L. Reid, Larry Downs
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Publication number: 20030116938Abstract: A vehicle tailgate step, wherein the step is pivotally mounted to the rear of a truck/vehicle, proximal the tailgate, and provides accessibility to the truck bed from the side of the truck when the tailgate is in the closed position, or from directly behind the truck, regardless of the tailgate position. Additionally, the device can be selectively manufactured to provide access to the contents of a truck bed from the side of the truck bed when the tailgate is in either a raised or lowered position.Type: ApplicationFiled: February 4, 2003Publication date: June 26, 2003Inventors: Scott Shields, James E. Owens
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Publication number: 20030094781Abstract: A retractable step assembly has a U-shaped step and two brackets, each bracket having a mounting face where it may be fixed to a vehicle and having a pair of bearing openings for rotatably supporting a first tube. The first tube has a torsion spring disposed therein. The first tube is fixed inside a second tube which is unitary or integral with a side arm of the U-shaped step. The bearing openings are preferably unitarily formed in the bracket. In another embodiment, the tubes are replaced by a pin fixed to the bracket. The pin has a torsion spring disposed around it. Each side arm of the U-shaped step has an annular bearing surface or opening for rotatably fitting around the pin. The annular bearing opening is preferably unitarily formed in the side arm of the U-shaped step. In a third embodiment, each bracket has the opposite ends of the same elongate pin fixed thereto. The elongate pin has two torsion springs disposed around it.Type: ApplicationFiled: October 25, 2002Publication date: May 22, 2003Inventors: Alfonso Jaramillo, Suzanna Jaramillo-Curi
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Publication number: 20030090081Abstract: A passenger ingress and egress system within a transit vehicle employing a movable step apparatus in combination with sliding type door system to accommodate variations in passenger ingress and egress platform facilities. Said movable step apparatus having at least three step members movable from a conventional step relation to permit ingress and egress from and onto a street platform to an aligned, coplanar relation to permit ingress and egress from and onto a commuter platform, generally located 50 inches above the Top Of Rail. A gap reduction apparatus is disposed within the movable step apparatus to minimize horizontal distance between a commuter platform and the movable step apparatus with all step members in an aligned, coplanar relation to meet federal regulations for American with Disability Act.Type: ApplicationFiled: November 8, 2002Publication date: May 15, 2003Inventor: Robert L. Oakley
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Publication number: 20030071434Abstract: There is provided a passenger access system that includes a pedestrian access system for pedestrian ingress and egress through a vehicle door opening that can be used alone or in combination with a wheelchair access system. The pedestrian access system includes a step assembly mounted in a housing secured under a vehicle at a door opening. The step assembly is movable between a stowed position in the housing and deployed positions wherein pedestrians can step on the step assembly to access the vehicle through the door opening.Type: ApplicationFiled: October 16, 2001Publication date: April 17, 2003Inventor: Alfred L. Budd
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Patent number: 6533303Abstract: The step assembly (20) includes a mounting bracket (26) mounted to an under-carriage of the pick-up truck. A step (30) is pivotally secured to the mounting bracket. The step can rotate between a stowed position with the step disposed adjacent the mounting bracket and an operative position with the step extending from the bracket. A coil spring is mounted between the bracket and the step for continuously biasing the step toward the stowed position. A ratchet mechanism, having a pawl, a cam and an over-center spring, is mounted between the bracket and the step. The ratchet mechanism locks the step in the operative position in response to rotation of the step from the stowed position to the operative position. When in the operative position, a user can stand on the step assembly to access the bed of the pick-up truck. The ratchet mechanism also unlocks the step in response to over rotation of the step beyond the operative position.Type: GrantFiled: October 31, 2001Date of Patent: March 18, 2003Assignee: Decoma International Inc.Inventor: Brad E. Watson
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Patent number: 6530588Abstract: A vehicle step apparatus for allowing a user easy access to pickup beds and sport utility vehicle cargo areas. The vehicle step apparatus includes a step support assembly that includes a mounting assembly that is designed to be coupled to the vehicle. A support member is slidably coupled to the mounting assembly such that a distal end of the support member is slidably positioned respect to the mounting assembly. A step support frame is coupled to the distal end of the support member such that the step support frame downwardly extends from the distal end of the support member. A step member is removably coupled to the step support frame opposite the support member. A step plate is coupled to a distal end of the step member such that the step plate is designed for supporting the weight of a user stepping into the vehicle.Type: GrantFiled: February 2, 2001Date of Patent: March 11, 2003Inventors: Linda Varney, Abel Cantu
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Publication number: 20030042700Abstract: It is an object of the present invention to provide a footboard which can be used in case of necessity by drawing out a footboard main body as a tread from a lower portion or a vicinity of the lower portion of a portion for getting on and off and then by lowering the footboard main body to an intermediate position of a height from a drawn out position to the ground below the footboard in order to make it extremely easy not only for general well-built adult men but also children, women, elderly people, people with leg or lumbar disabilities to get on and off a step portion and especially an automobile with a large vehicle height, called a van or a recreational vehicle, and having a door for getting on and off in a relatively high position. The invention is formed by assembling attachment members for attaching the footboard to the step portion, e.g.Type: ApplicationFiled: February 12, 2002Publication date: March 6, 2003Inventor: Mamoru Ueno
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Publication number: 20030038446Abstract: A step assembly is provided having a step frame mounted for movement relative to a mounting surface between a deployed position and a stored position (or between a stored position and a deployed position), and at least one boss, the boss having a notch for holding the step frame in the deployed position. The step frame preferably has at least two legs oriented parallel to each other, and horizontally spaced from one another, each of the legs defining an upper end and a lower end, an axle connected at the upper end of the at least two legs, and a step member connected between the at least two legs proximate to the lower ends thereof.Type: ApplicationFiled: August 5, 2002Publication date: February 27, 2003Applicant: NISSAN DESIGN AMERICA, INC.Inventors: Michael D. Anderson, Stephen D. Ball
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Patent number: 6511086Abstract: A foldable step assembly that is adjustably engageable with a trailer hitch receiver to achieve a variable horizontal clearance between a step plate and a rearward end of the receiver. The step plate is pivotally mounted to a step mount shank and is foldable from a horizontal use position to a vertical storage position. The step plate has a latch receiving recess, and there is a latch mechanism mounted on an upper part of the of a facing plate on the step mount shank. A brake light is mounted on the step plate to be visible when the step plate is in the vertical storage position.Type: GrantFiled: January 26, 2001Date of Patent: January 28, 2003Inventor: William S. Schlicht
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Patent number: 6474668Abstract: A pull out step which can be extended directly to the rear of a pickup truck makes it possible to step from the ground to the tread of the step and then to the tailgate of the truck. A bracket attached to a trailer hitch on the truck slidably supports a beam which supports the tread and allows the beam to be locked in either the extended or retracted positions. For use with trucks having an unusually high chassis, the beam may include a gooseneck to lower the elevation of the tread to approximately one half the elevation of the tailgate. The bracket may also be attached directly to the body of the truck.Type: GrantFiled: May 24, 2001Date of Patent: November 5, 2002Inventor: Gregory F. Debo
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Patent number: 6471002Abstract: A folding foot step of the type used on vehicles has an improved anti-skid, friction grip, stand-on surface with a clover-leaflet-shaped perimeter. The stand-on surface is interrupted by three elongate openings that are spaced inwardly from the perimeter and arrayed to extend about an uninterrupted central region of the stand-on surface. An upwardly-opening recess is defined by a narrow upstanding rim that runs along and defines the perimeter of the stand-on surface, and by narrow upstanding rims that encircle the three openings.Type: GrantFiled: December 4, 2000Date of Patent: October 29, 2002Assignee: The Eastern CompanyInventor: Lee S. Weinerman
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Publication number: 20020125677Abstract: Vehicle-mountable steps with platforms which have stowed and operational (deployed) positions. A latch mechanism positively locks the platform in the selected position. The step is designed for vehicles equipped with a ball-and-receiver type of trailer hitch and is coupled to the receiver of the hitch. The step is easily removed when the hitch is needed for towing but can otherwise be left on the vehicle as the platform of the step is located out-of-the-way beneath the vehicle when the platform is located in its stowed position.Type: ApplicationFiled: March 8, 2001Publication date: September 12, 2002Inventors: Daniel W. Knodle, Gary M. Bang
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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: 20020113400Abstract: A retractable step for use with a vehicle comprises a stepping member having a stepping deck, a first arm, a second arm, a motor and a stop. The first arm has a first end pivotally attached to the vehicle, and a second end pivotally attached to the stepping member. The second arm also has a first end pivotally attached to the vehicle, and a second end pivotally attached to the stepping member. The motor is drivingly connected to the first arm such that a rotation of the motor causes rotation of the first arm about its first end and moves the stepping member from a retracted position to an extended position, or vice versa. The stop is located within the range of motion of the second arm such that the second arm bears against the stop when the stepping member is in the extended position. The first and second arms are situated such that the first arm is loaded in compression and the second arm is loaded in tension when the stepping member is in the extended position and a load is placed upon it.Type: ApplicationFiled: March 26, 2001Publication date: August 22, 2002Inventor: Horst Leitner
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Patent number: 6435534Abstract: A retractable step which is adequately functional, and which virtually automatically shifts between its in-use and storage position. A side runner assembly having a dropping step for a vehicle includes: an elongate member having a front and rear portion, each of the front and rear portions rigidly attached to the frame by a lateral member; and, a dropping central step portion carried by a lateral member, one side portion of the lateral member rigidly attached to the central portion, and the other opposite side portion movably attached to the frame. A spring upwardly biases the central portion; and the central portion is restrained in horizontal alignment with the front and rear portion of the side rail assembly. The central step portion is normally maintained in alignment with the front and rear portions of the assembly and drops to an operative position when and only downward force is applied thereon.Type: GrantFiled: June 29, 2000Date of Patent: August 20, 2002Inventor: Harry W. Stone
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Patent number: 6425572Abstract: A telescoping, retractable handrail for a recreational vehicle automatically extends or retracts when the retractable stairs of the vehicle are extended or retracted. The handrail contains an upper rail pivotally attached at one end to the outer wall of the vehicle and a lower rail pivotally attached at one end to the stairs of the vehicle. The unattached ends of both rails are telescopingly engaged with one another. Preferably, the lower rail telescopes within the upper rail. When the stairs are extended, the lower rail moves downward and outward to extend the rail for use by a person entering the vehicle. The handrail may also contain upper and lower brackets for pivotally attaching the upper and lower rails to the wall and stairs, respectively.Type: GrantFiled: September 8, 2000Date of Patent: July 30, 2002Inventor: Marshall H. Lehr
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Patent number: 6422342Abstract: A stowable step has a housing, a U-shaped step platform and a sliding member pivotally engaging the step platform. The sliding member is slidably mounted within the housing for reciprocating movement between a retracted stowed position wherein the platform extends into the housing and a deployed position wherein the platform can pivot relative to the sliding member to a substantially vertical position.Type: GrantFiled: October 3, 2000Date of Patent: July 23, 2002Assignee: Decoma Exterior Trim Inc.Inventors: Bradford Armstrong, Willi Sitkei
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Publication number: 20020094261Abstract: A motor vehicle, particularly a passenger car, includes a storage compartment, closable by at least one gate, which is delimited on its bottom by an essentially horizontal bottom plate fixed to the vehicle. At least one loading ramp is located in the storage compartment below the bottom plate which is mounted in a horizontal guide and is adjustable when the gate is open between an inserted position, in which the loading ramp is completely accommodated in the storage compartment, and an extended position, in which the loading ramp extends from the vehicle and rests on a ground on which the vehicle stands. An end section of the loading ramp facing the storage compartment is pivotable around a pivot axis which extends transverse to the lengthwise axis of the loading ramp. This pivot axis is positioned in this case so that in the extended position an end edge of the ramp facing the bottom plate sits approximately flush with an end edge of the bottom plate facing the loading ramp.Type: ApplicationFiled: December 18, 2001Publication date: July 18, 2002Inventors: Ute Fischer, Mathias Lenz
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Patent number: 6394307Abstract: A railing system for a trailer or recreational vehicle that includes a handrail that is attachable to the wall structure of the vehicle adjacent to the entranceway to provide a stable support for individuals while entering and leaving. The handrail assembly is easily and rapidly attached and detached and includes a wall mount that is permanently attachable to the wall structure of the vehicle and an angularly adjustable handrail assembly that is detachably connectable to the wall mount.Type: GrantFiled: December 4, 1998Date of Patent: May 28, 2002Inventor: Rick L. Andrews
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Patent number: 6378654Abstract: A ladder attached to a generally vertically extending wall or surface which is particularly useful when attached to the side of vehicles which can pivot outwardly to a slight extent at the bottom area thereof in order to increase the climbing inclination to make it easier to climb vertically for emergency personnel under emergency situations and especially when carrying heavy equipment or other necessary emergency apparatus. The ladder configuration is pivotal between a storage position extending generally vertically next to the wall and a deployed position or extended position set at the inclination angle to facilitate climbing thereof. A resilient locking device can secure the ladder in the collapsed position and a pivotally movable scissors assembly controls movement of the lower portion of the ladder between the inclined position and the vertical position.Type: GrantFiled: July 18, 2000Date of Patent: April 30, 2002Inventors: Theodore Ziaylek, Jr., Michael P. Ziaylek, Theodore P. Ziaylek
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Patent number: 6375207Abstract: A retractable running board assembly has a step, at least two support arms, at least two mounting brackets, at least two pairs of parallel links and a drive. The step has an elongated stepping surface extending generally parallel to a longitudinal axis of a vehicle on which the running board assembly is mounted. The support arms are mounted to the step. The mounting brackets are connected to an underside of the vehicle. The parallel links are pivotally connected between each of the support arms and the mounting brackets. The drive effects movement of the step between an extended outboard position and a retracted inboard position.Type: GrantFiled: February 22, 2000Date of Patent: April 23, 2002Assignee: Decoma Exterior TrimInventors: Thomas Dean, Robert R. MCaughey, Brad Armstrong, Lassi M. Ojanen, Robert D. Worley, John Kleino, Paul Pirone
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Patent number: 6357773Abstract: A pull out step assembly is provided to assist in climbing into or out of a cab of a crane, excavator or similar vehicle. The step assembly includes a pair of brackets carrying forward and rearward rollers and a step having support guides for embracing the rollers to prevent the step from shifting laterally during use. A locking mechanism positively secures the step in place in both the extended and retracted positions. The locking mechanism includes an operating shaft having a pivotal handle positioned below the step for easy access and a dual crank. The crank receives the ends of a pair of reciprocal locking rods that extend transversely to engage corresponding pairs of forward and rearward slots formed in the brackets. A compression spring supplies a biasing force to keep the rods engaged in the slots. To shift the step, the handle is manually rotated either clockwise or counterclockwise to overcome the biasing force and disengage the rods from the respective slots.Type: GrantFiled: March 17, 1999Date of Patent: March 19, 2002Assignees: Link-Belt Construction Equipment Company, L.P., LLLP, Sumitomo Construction MachineryInventors: Francis J. Griebel, Michael K. Yates
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Patent number: 6325397Abstract: A power retractable running board assembly for a motor vehicle includes a substantially sealed housing assembly, a running board, a parallel linkage, a gear assembly, and a motor assembly. The running board presents an upper load carrying surface. The gear assembly is disposed in the sealed housing assembly and coupled to an arm of the parallel linkage. The motor assembly is drivingly coupled with the gear assembly and is constructed and arranged to pivot the running board between deployed and stored positions.Type: GrantFiled: February 23, 2000Date of Patent: December 4, 2001Assignee: Decoma Exterior Trim Inc.Inventors: David M. Pascoe, Brad E. Watson
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Publication number: 20010045720Abstract: A foldable step assembly that is adjustably engageable with a trailer hitch receiver to achieve a variable horizontal clearance between a step plate and a rearward end of the receiver. The step plate is pivotally mounted to a step mount shank and is foldable from a horizontal use position to a vertical storage position. The step plate has a latch receiving recess, and there is a latch mechanism mounted on an upper part of the of a facing plate on the step mount shank. A brake light is mounted on the step plate to be visible when the step plate is in the vertical storage position.Type: ApplicationFiled: January 26, 2001Publication date: November 29, 2001Inventor: Willian S. Schlicht
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Publication number: 20010035625Abstract: A pull out step which can be extended directly to the rear of a pickup truck makes it possible to step from the ground to the tread of the step and then to the tailgate of the truck. A bracket attached to a trailer hitch on the truck slidably supports a beam which supports the tread and allows the beam to be locked in either the extended or retracted positions. For use with trucks having an unusually high chassis, the beam may include a gooseneck to lower the elevation of the tread to approximately one half the elevation of the tailgate.Type: ApplicationFiled: May 24, 2001Publication date: November 1, 2001Inventor: Gregory F. Debo
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Publication number: 20010030081Abstract: A ladder unit for climbing up and down a construction machine, capable of stabilizing a ladder in a position of descent thereof and that of storage thereof, facilitating an operator's actions to climb up and down the construction machine, and preventing the ladder from projecting toward circumferential parts and being thereby broken. Mechanisms for locking the ladder in the position of descent thereof are provided. The ladder locking force of these locking mechanisms is rendered releasable from the ladder in a position on the construction machine. Mechanisms for locking the ladder in its storage position are also provided.Type: ApplicationFiled: December 19, 2000Publication date: October 18, 2001Inventors: Kazuyoshi Morimoto, Kou Nagaoka
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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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Publication number: 20010024023Abstract: A running board storage device being mounted in conjunction with a land vehicle where the running board storage device can be used as a step to facilitate entry and exit through an access door of the vehicle. The storage device may comprise a drawer which is movable between a retracted position where access into the drawer is prevented and an extended position where access into the drawer is permitted. Also, the storage device could have an entry door arrangement where an upper door and a lower door open simultaneously in a “clamshell” opening arrangement. The storage compartment of the running board can be divided into an upper section and a lower section with elongated members such as skis, pipes and the like being capable of being stored in the upper section. The lower section may optionally include one or more drawers.Type: ApplicationFiled: April 30, 2001Publication date: September 27, 2001Inventor: Daniel G. Farkash
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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: 6264227Abstract: A system for moving a step assembly in response to maneuvers of an articulated work vehicle. The step assembly moves to avoid interference with the vehicle's wheels or tracks. A push rod assembly provides actuation to the step assembly in response to the vehicle motions.Type: GrantFiled: October 1, 1998Date of Patent: July 24, 2001Assignee: Case CorporationInventors: Brad Johnson, Thomas G. Lykken, Bryan J. Garberg
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Patent number: 6264222Abstract: A stairway assembly is pivoted between deployed and stowed positions. The stairway in one form includes a sliding support from which the stairway is suspended at a location spaced from a stairway pivot. A link, which may be adjustable in length, couples the coupler to the stairway. A snubber is provided to limit vibration of the stairway when stowed. An actuator, which may comprise an electric motor, is positioned above and overlies a portion of a platform of the stairway. Extension and retraction of the actuator pivots the stairway between stowed and deployed positions.Type: GrantFiled: February 25, 1999Date of Patent: July 24, 2001Assignee: Freightliner LLCInventors: David J. Johnston, Michael K. Smith, Nasser Zamani, William G. Massey, III, Luis A. Novoa, Michael von Mayenburg, Charles H. Blakewood, Jr., Paul M. Menig, Paul J. Delurey
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Patent number: 6237927Abstract: A pull out step which can be extended directly to the rear of a pickup truck makes it possible to step from the ground to the tread of the step and then to the tailgate of the truck. A bracket attached to a trailer hitch on the truck slidably supports a beam which supports the tread and allows the beam to be locked in either the extended or retracted positions. For use with trucks having an unusually high chassis, the beam may include a gooseneck to lower the elevation of the tread to approximately one half the elevation of the tailgate.Type: GrantFiled: June 10, 1999Date of Patent: May 29, 2001Inventor: Gregory F. Debo
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Patent number: 6213486Abstract: The step assembly (10) includes a housing (12) which is mountable to a recreational vehicle, typically underneath the door of the vehicle. A pair of linkage arms (14) and (16) are rotatably coupled at their lower ends to each side of the housing (12). The step assembly (10) contains an upper tread assembly (18), a center tread assembly (24), and a lower tread assembly (34), respectively including an upper step (20), a center step (28), and a lower step (40). The upper ends of the linkage arms (14) and (16) are rotatably connected to the upper portion of the upper tread assembly (18). The center tread assembly (24) is slidably engaged with the upper tread assembly (18) through a slideway assembly (26). The lower tread assembly (34) has a lower tread pivot arm (38) which is rotatably coupled to the center tread assembly (24) by a pin (30) mounted on the center tread assembly.Type: GrantFiled: April 5, 1999Date of Patent: April 10, 2001Assignee: Kwikee Products Co., Inc.Inventors: James R. Kunz, Benjamin J. Boyce, Malcolm M. Maccabee
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Patent number: 6209682Abstract: Access to an operator station of a large track-type tractor is provided by a ladder support structure pivotally attached to a portion of the radiator guard of the tractor. The ladder support structure extends over a track of the tractor and has a ladder pivotally attached to a distal end of the ladder support structure that provides steps over a push arm and a tilt cylinder of the tractor. When the ladder assembly is moved to its carry position, the ladder is moved to a position inside the ladder support structure, and the ladder support structure raised to a vertical position adjacent a side panel of the radiator guard of the tractor. The present invention avoids the problem of machine operators climbing on the push arms, tilt cylinders, radiator, radiator guard, track, hood, and engine enclosures in order to gain access to the operator station.Type: GrantFiled: February 11, 2000Date of Patent: April 3, 2001Assignee: Caterpillar Inc.Inventors: Joseph F. Duffy, Lionel A. Martin, Steven C. Swanson
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Patent number: 6179312Abstract: A retractable stairway assembly for entering and exiting a vehicle with a cab has a stairway with steps. The stairway assembly is movable between a retracted position, in which the stairway is beneath the cab, and an extended position, in which the stairway is exposed to allow entering and exiting of the vehicle. The stairway assembly also has a panel that substantially hides the stairway when in the retracted position. An actuator moves the stairway assembly between the retracted and extended positions in response to closing and opening the door.Type: GrantFiled: March 14, 1997Date of Patent: January 30, 2001Assignee: Freightliner LLCInventors: Joachim Paschke, Michael von Mayenburg, Louis A. Novoa, Ducan Good, Charles H. Blakewood, Mark S. Hurayt
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Patent number: 6178364Abstract: A method of controlling a retractable stairway assembly for a vehicle includes monitoring at least one vehicle status condition such as (a) whether the vehicle is stopped, (b) whether the parking brake is set, (c) whether the cab is tilted in excess of a threshold, and (d) whether excess current is being required by a motor used to shift the stairway between stowed and deployed positions in the event an electric motor is used for this purpose. In the event any of these monitored conditions are not in a predetermined state, deployment of the stairway from a stowed position is blocked. Deployment and stowing of the stairway may also be interrupted depending upon vehicle status and other conditions. Interior and exterior vehicle alarms may be activated depending on vehicle status conditions and the mode of operation of the stairway.Type: GrantFiled: February 25, 1999Date of Patent: January 23, 2001Assignee: Freightliner CorporationInventors: Paul J. Delurey, David J. Johnston, Michael K. Smith, Nasser Zamani, William G. Massey, III, Luis A. Novoa, Michael von Mayenburg, Charles H. Blakewood, Jr., Paul M. Menig
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Patent number: 6173812Abstract: A recreational vehicle fire escape system for providing a user with a safe passage from the escape window to the ground includes a pair of tracks designed for coupling to a camper on an underside of an elevated compartment extending from the camper. A platform is slidably attached to the track for extending outwardly from the elevated compartment. A ladder is extended from the platform and is pivotable relative to the platform such that a distal end of the ladder is designed for positioning against a surface below the platform. The platform is positioned near an egress window of the camper such that the platform and ladder are designed for facilitating exit of a user through the egress window.Type: GrantFiled: October 28, 1999Date of Patent: January 16, 2001Inventors: Gerald R. Spivey, Betty J. Spivey
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Patent number: 6170842Abstract: A step assembly in combination with a vehicle having a frame and a rear bumper, with an upper surface and a generally vertical outer face, attached to the vehicle frame has an attachment leg with a generally perpendicularly extending step portion. A step bracket supported on the outer face of the bumper mounts the step for swinging movement from a first operative position in which one side of the attachment leg is disposed generally vertically adjacent the bumper face and the step portion extends generally perpendicularly to a retracted second position in which the opposite side of the attachment leg lies vertically adjacent the bumper and the step portion is inversely disposed and extends along the upper surface of the bumper. A lock device is automatically operative between the mount and step under the influence of gravity for releasably locking the step in both positions.Type: GrantFiled: December 23, 1998Date of Patent: January 9, 2001Assignee: Bad River, Inc.Inventor: Gerald E. Mueller
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Patent number: 6170843Abstract: A step holding member has a first end which is insertable into a receiver-type trailer hitch and a second end which is adapted for holding a step member for stepping onto the tailgate of a pickup truck. In another embodiment of the invention the step holding member telescopes in and out towards a side of a pickup truck allowing for easy storage when telescoped in. In a third embodiment the step holding member folds inwards from the pickup towards the trailer hitch for storage. A fourth embodiment is adapted for mounting directly onto a trailer hitch drawbar so that the hitch may be used for towing with the step in place for use.Type: GrantFiled: July 21, 1999Date of Patent: January 9, 2001Inventors: Bobby Maxwell, Robert Maxwell
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Patent number: 6168176Abstract: An accessing step, mounted on a vehicle having a bumper attached to the vehicle frame, comprises a step part and a mount assembly fixedly supported on the bumper and frame, mounting the step part for swinging movement from a first operative position in which the step part extends generally horizontally to a retracted second position pivoted upwardly to lie generally vertically adjacent the bumper. The mount assembly incorporates a lock device automatically operative between the mount assembly and step part for releasably locking the step part in the second position and automatically locking up to block the step part from downwardly swinging beyond a substantially horizontal position, while permitting the step part to be swung upwardly.Type: GrantFiled: December 23, 1998Date of Patent: January 2, 2001Assignee: Bad River, Inc.Inventor: Gerald E. Mueller
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Patent number: 6158756Abstract: A protective barrier (10) for mounting in close proximity to those vehicular surfaces being protected, and made integral with a step supporting surface (27) that will reposition to assist entry or exit from the vehicle, and then return to its protective position through operation of a motive means (22, 24, 30 and 32).The mounting (14a and 14b) of the device is non-intrusive to any portion of the vehicle in such a way that eases its installation, operation and maintenance, supports any vehicle warranty, and does not require special tools or processes for installation, operation or maintenance.Type: GrantFiled: July 7, 1999Date of Patent: December 12, 2000Inventor: David Curtis Hansen
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Patent number: 6149172Abstract: A power-retractable step assembly for a motor vehicle comprises a substantially sealed housing assembly, a pivoting structure including a step structure, a gear assembly, and a motor assembly. The step structure presents an upper load carrying surface, and the pivoting structure is mounted for pivotal movement about an axis. The gear assembly is disposed in the sealed housing assembly and coupled to the pivoting structure. The motor assembly is drivingly coupled with the gear assembly and is constructed and arranged to pivot the pivoting structure about the axis and thereby drive the pivoting structure between deployed and stored positions. The step structure is moved in an outboard vehicle direction when the pivoting structure is moved from the stored position to the deployed position, and is also moved in a fore-aft vehicle direction when the pivoting structure is moved between the stored and deployed positions.Type: GrantFiled: January 20, 1999Date of Patent: November 21, 2000Inventors: David Mark Pascoe, Brad E. Watson
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Patent number: 6135472Abstract: A movable running board system which includes a running board which is supported by a movable under carriage. The movable under carriage is coupled to a motor wherein the motor is capable of moving the running board between a fully extended position and a retracted position. The motor is coupled to a motor controller which receives a signal from a door position switch. When the door position switch indicates that the vehicle door is opened, the motor controller commands the motor to manipulate the running board to a fully extended position. Once the vehicle door is closed the door position sensor sends the "closed door" signal to the motor controller which, then in turn, commands the motor to retract the running board into the retracted position.Type: GrantFiled: September 24, 1998Date of Patent: October 24, 2000Assignee: SportRack LLCInventors: Kevin Wilson, Craig A. Stapleton, John E. Klinkman
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Patent number: 6116378Abstract: A universal, compact, truck tailgate ladder with support arms is disclosed, comprised of a folding ladder of otherwise conventional design, with upper leg members and lower leg members, and a series of parallel steps connecting each set of upper leg members and lower leg members. The present invention is designed to attach to the interior surface of a pick-up truck tailgate via a fastening means, such as bolts.Type: GrantFiled: December 9, 1998Date of Patent: September 12, 2000Inventor: Sherman Dean Barrow
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Patent number: 6082751Abstract: An extendable and retractable step structure mounted to a recreational or like vehicle to facilitate passenger ingress and egress. The step structure basically includes a frame mountable to the vehicle beneath a doorway or other passenger ingress-egress location, at least one step tread and a movable linkage arrangement supporting the step tread from the frame for controlled movement between a retracted position wherein the step tread and the linkage arrangement are withdrawn into frame and an extended position wherein the step tread and the linkage arrangement are extended outwardly from the frame. Four embodiments are disclosed, two being equipped with a single step tread, a third having two step treads, and a fourth having three step treads, for selective use in differing vehicles having differing above-road elevations.Type: GrantFiled: April 15, 1997Date of Patent: July 4, 2000Assignee: Hickory Springs Manufacturing Co.Inventors: Fred E. Hanes, Allen M. Williams
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Patent number: 6068277Abstract: An access platform system for an earth-moving machine, such as a grader including a frame, plural ground-engaging drive members, an earth working tool and an operator station, which access platform system includes a first deck structure including deck members adapted to move between an upright storage position and a flat deployed position, stairs for providing access for personnel from ground level to the first deck structure and associated safety barriers. The first deck structure extends, in the deployed position, from the stairs to the operator station and the first deck structure allows, in the storage position, a substantially unobstructed view of at least a front portion of either a ground engaging drive member or the earth working tool from the operator station. The access platform system also includes a second deck structure interposed between the stairs and the first deck structure.Type: GrantFiled: November 20, 1998Date of Patent: May 30, 2000Assignee: Access Innovations Pty, Ltd.Inventor: Michael W Magnussen
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Patent number: 6036208Abstract: A truck bed pull out step system installed under the front of a passenger pickup truck bed on one or both sides gives the user the ability to enter the pickup bed area or retrieve items with ease. When not in use is concealed under pickup bed.Type: GrantFiled: February 6, 1998Date of Patent: March 14, 2000Inventor: Stephen Arnold Frerichs
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Patent number: 6029775Abstract: An access device for providing access between a substrate surface and the cabin of a vehicle. The device is attached to a rotating actuator extending outwardly from the side of the cabin for moving of the device between the access position (FIG. 1) and the storage position (FIG. 3). The device includes a substantially triangularly shaped platform. A first side of the platform is attached to the rotating actuator. A second side of the platform has the ladder depending therefrom. The third side of the platform is, in the access position (FIG. 1) located proximal to the cabin. The device is rotated by the rotating actuator to the storage position (FIG. 3) wherein the device is substantially upturned relative to the access position (FIG. 1) of the device and wherein a substantial part of the device is positioned above the rotating actuator.Type: GrantFiled: February 8, 1999Date of Patent: February 29, 2000Assignee: Justoy Pty Ltd.Inventors: Robert Ian Hedley, Christopher Nash Whybin