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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 5584493 | Folding step system for vehicles A pivotable fold-down step system mounted to a vehicle, such as a fire truck or rescue truck, and synchronized to extend and retract by vehicle door motion. The step system is designed to easily achieve ingress and egress requirements stated within the Na... | 12/17/1996 |
| 4369984 | Passenger vehicle such as a bus having a laterally extending stair assembly A stair assembly for a passenger vehicle, especially an omnibus, in which the stair assembly is arranged in a lateral access area of the vehicle. The stair assembly comprises a horizontally extendable first stair member connected by links to a second stai... | 01/25/1983 |
| 4356894 | High vehicle driver mount and dismount lift A vertically elongated mount is provided and supported from a tractor vehicle of the cab over engine type closely behind and spaced slightly inwardly of the front wheel of the tractor on the driver's side thereof. An elongated support arm is provided and ... | 11/02/1982 |
| 4231583 | Projectable step for vehicles A step for a vehicle pivotally supported by the chassis frame thereof and movable between extended operative and retracted inoperative positions, vacuum mechanism being used to retract the step and a spring moves the same to extended position. A latch rel... | 11/04/1980 |
| 4188889 | Retractable running-board, especially for a railway car door A movable step displaceable by means of an operating mechanism between a withdrawn position and a service position has an extension in the form of two transverse arms associated with two pairs of link-arms which are pivotally mounted on four shafts having... | 02/19/1980 |
| 4185849 | Retractable step for motor vehicle For use with a motor vehicle, a device is provided for moving a step between an extended and a retracted position which comprises a pneumatic cylinder including a piston attached to the step and resiliently biased to move the step to an extended position ... | 01/29/1980 |
| 4168134 | Vehicle doorway lift A lift assembly is provided which can be mechanically converted from a stationary step-like configuration to a movable platform configuration, thus allowing both handicapped and non-handicapped passengers to use a single vehicle entrance having the lift a... | 09/18/1979 |
| 4073501 | Vehicle entry way elevator step A bus vehicle includes an entry way having a lower step, a middle step and a third step which is the floor of the vehicle. The bottom step is vertically movable to three positions, a ground engaging position, a position in the plane of the bottom of the v... | 02/14/1978 |
| 4020920 | Retractable transit coach step A retractable step for mounting on a transit coach utilizes a parallelogram linkage and an hydraulic-pneumatic actuating system which is connected to the movable step member by an off center clevis and lever system to prevent step sagging. Apparatus is pr... | 05/03/1977 |
| 3957284 | Movable steps for a transit vehicle A movable step assembly for use in mass transit vehicles to accommodate variations in passenger off and on loading facilities, said steps being movable from a conventional relation to permit on and off loading to street levels to an aligned, coplanar rela... | 05/18/1976 |
| 3955827 | Stowable step for vehicles A stowable step for use with a vehicle of the type having a body with a door opening therein and a frame beneath and inward from the door opening, a plate hinged to the frame and receiving a stowable tread thereupon, the tread being displacable laterally ... | 05/11/1976 |
