...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7488030 | Teardrop travel trailer The teardrop travel trailer has an airfoil shape with a leading edge region at the front, a trailing edge region at the rear, two relatively flat opposite sides, and a superior surface extending from the leading edge region to the trailing edge region, the superior ... | 02/10/2009 |
| 7380867 | Camper-utility trailer assemblies A camper-utility trailer assembly has a convertible trailer and at least one enclosure structure communicating therewith. The convertible trailer is convertible between a stowed configuration and a set-up configuration. In at least one of the configurations, the con... | 06/03/2008 |
| 7357440 | Camper A camper having passive solar climate controls. The camper has a solar structure carried by a base. The solar structure includes a cover, a window panel, a ridge vent, a plurality of awnings, and a plurality of side panels. The ridge vent and the awnings are carried... | 04/15/2008 |
| 7258390 | Camper trailer A camping trailer adapted for towing behind a motor vehicle comprising a body divided into a sleeping portion, a kitchen portion, and a bathroom portion, wherein the bathroom portion is substantially located over a forward “A” shaped towing frame of the trailer.... | 08/21/2007 |
| 7201431 | Camper A camper having passive solar climate controls. The camper has a solar structure carried by a base. The solar structure includes a cover, a window panel, a ridge vent, a plurality of awnings, and a plurality of side panels. The ridge vent and the awnings are carried... | 04/10/2007 |
| 7178857 | Camping system with cargo capacity A camping system convertible between a transporting configuration and a camping configuration. The system includes a large storage compartment to allow storage of large items such as all terrain vehicles, motorcycles, bicycles and other large items even when in the ... | 02/20/2007 |
| 7165779 | Convertible combination utility/camper tow trailer The present invention features a combination utility/camper tow trailer capable of being converted between a first utility functioning configuration or position, a second utility functioning configuration or position, and a sleep functioning configuration or positio... | 01/23/2007 |
| 7159893 | Tent assembly for use with utility trailers and vehicles The present invention features a combination utility/camper trailer capable of being converted between a first utility functioning configuration or position, a second utility functioning configuration or position, and a sleep functioning configuration or position vi... | 01/09/2007 |
| 7150483 | Flush floor slide-out mechanisms and systems A vehicle includes a main floor and a slide-out portion which includes a slide-out floor. A flush floor slide-out mechanism may be used to move the slide-out portion between a retracted position where the slide-out floor is positioned adjacent to the main floor and ... | 12/19/2006 |
| 7100625 | Screen room enclosure and method of attachment A fastening assembly and method to releasably secure a panel of a novel screen room enclosure to a structure. The fastening assembly includes a clip having a channel portion fastened to a flat portion, the channel portion having an opening adapted to receive an edge... | 09/05/2006 |
| 7100967 | Recreational vehicle having slide-out atrium room A recreational vehicle comprises a slide-out room. A ceiling of the slide-out room comprises at least one window to allow external light into the slide-out room. ... | 09/05/2006 |
| 7093891 | Hatch water diverter In an automotive hatch back vehicle, foldable bonnets are coupled between an underside of the hatch lid and the run-off channels on both the driver and passenger side of the vehicle, pleated to fold outwardly as the hatch lid is raised to divert water accumulations ... | 08/22/2006 |
| 7073816 | Multi-use trailer An adjustable width trailer including a center frame with a center deck, and attached tongue and an attached guide beam that is transverse to the direction of forward movement. Left and right wheel support assemblies are slidably mounted on the guide beam. Left and ... | 07/11/2006 |
| 7052064 | Sliding mechanisms and systems A quick-release mechanism that allows a motor to be quickly and easily released from a motorized activation assembly to activate a sliding mechanism thereby extending or retracting a slide-out compartment of a recreational vehicle. ... | 05/30/2006 |
| 7008009 | Roller blind system for a motor vehicle A roller blind system for a vehicle roof includes a rotatable coiling body and a roller blind that is attached at one end to the coiling body and at the other end to a vehicle portion in a stationary manner. The coiling body is shiftable in a translational motion, a... | 03/07/2006 |
| 6976721 | Slide-out mechanisms and systems A land vehicle includes a first floor, a second floor, a first support member, a second support member, and a gear. The first support may be coupled to the land vehicle and sloped relative to the first floor. The second support member may be supported by the first s... | 12/20/2005 |
| 6971707 | Extendable trailer patio room An extensible, exterior room for a recreational vehicle trailer comprising a floor, a roof, and at least one flexible wall is provided. The floor and the roof are each extensible between a stowed position and an open position. The floor is supported at one end by a ... | 12/06/2005 |
| 6905154 | Universal room extension A push-pull drive chain mechanism and scissors linkage assembly and lifter assembly all powered by hydraulic cylinders to affect the coordinated, linear movement of an expandable room in a recreational vehicle. The drive chain moves generally vertically along a firs... | 06/14/2005 |
| 6796590 | In-floor slide-out room support system A slide-out room (12) support system (28) for a recreational vehicle (10) has outer C-shaped rails (34) received at least partially within the thickness of the floor (64) with the slot of the C-shape opening downwardly. A fixed sup... | 09/28/2004 |
| 6729677 | Full body slide and integrated chassis A full body slide out room assembly is comprised of a vehicle with stationary end modules, a stationary roof and a plurality of moveable room assemblies that consist of a telescoping roof, floor, anterior walls, and end walls. The sliding movement of each room is co... | 05/04/2004 |
| 6729669 | Slide-out room with elevated travel A lifting mechanism elevates a slide-out room above the floor of a vehicle as the room is moved between an extended and retracted position. The lifting assembly in one embodiment includes a pair of rollers which support the room and which move vertically to elevate ... | 05/04/2004 |
| 6679541 | Chain driven linkage assemblies for room extensions A push-pull drive chain mechanism and scissors linkage assembly powered by a hydraulic cylinder to affect the coordinated, linear movement of an expandable room in a recreational vehicle. The drive chain moves generally vertically along a first structural... | 01/20/2004 |
| 6601896 | Bedroom slide out actuator with adjustable height An operating mechanism for use in a vehicle having a bedroom slide out, the bedroom slide out having a platform which is movable laterally relative to a vehicle having a stationary floor. The operating mechanism laterally moves the movable room section re... | 08/05/2003 |
| 6568734 | Straight motion parallelogram linkage A linkage mechanism provides for the extension and retraction of rooms in recreational vehicles while maximizing the space inside the vehicle. Braced parallel linkage members are applied between a vehicle frame member and an expandable room member. A hydr... | 05/27/2003 |
| 6565143 | Camping car In a vehicle of a size of approximately a one-box car, a camping car which can be used also for transportation such as regular commutation, shopping and so on based on the ability of setting up a portion or entirety of a roof portion of the vehicle higher... | 05/20/2003 |
| 6325447 | Electric lift camper top An electric lift camper top is provided for covering a rectangular head clearance opening (31) in a vehicle top structure for camper modification. The camper top consists of a bottom frame (32), including compression springs (38), attached to the vehicle ... | 12/04/2001 |
| 6325437 | Slide-out compartment for a vehicle The apparatus of the present invention for selectively actuable relative movement in a first direction between a first vehicle compartment mountable or mounted to a second vehicle compartment includes a first actuator mounted to the first vehicle compartm... | 12/04/2001 |
| 6250701 | Interior extension with floating corners The present invention involves an extension unit for a structure, such as a recreational vehicle or manufactured housing component. The recreational vehicle or manufactured housing component structure has an exterior wall, and the extension unit provides ... | 06/26/2001 |
| 6135539 | Foldout recreational vehicle A towable recreational vehicle includes main living quarters having solid side and end walls with panels pivotably mounted on each of the end walls supported by removable light weight support rods engaging sockets on the end walls and on the vehicle frame... | 10/24/2000 |
| 6053551 | Extension pivot "swing porch" A swing-out section for a recreational vehicle such as a mobile home which has an exterior wall, a roof, and a floor, the swing-out section being moveable between open and closed positions with a first end of a wall section defining the swing-out section ... | 04/25/2000 |
| 5997074 | Slideout room operating system A slideout room operating system for use with a recreational vehicle or travel trailer. A dual drive means, part of which supports the slideout room, is used to efficiently perform the moving function. The design is economical to manufacture and install and pr... | 12/07/1999 |
| 5992920 | Foldout recreational vehicle A towable recreational vehicle includes main living quarters having solid side and end walls with panels pivotably mounted on each of the end walls supported by removable light weight support rods engaging sockets on the end walls and on the vehicle frame... | 11/30/1999 |
| 5983576 | Extendable room An extendable room comprises accordion type ceiling and wall panels which fold within panel covers when the room is retracted, thereby taking up much less interior space and leaving the interior of the primary structure just as attractive, albeit smaller,... | 11/16/1999 |
| 5921616 | Adjustable door unit for pop-up campers A device for securing the door frame and door of a tent camper in a useable position after the tent camper top has been raised relative to the camper body. A bracket having a downwardly facing elongated channel is attached to the inside of the camper top,... | 07/13/1999 |
| 5913564 | Side panel for pop-up campers A flexible window assembly for covering a window in a flexible wall such as is commonly found on recreational vehicles such as tent campers. The assembly includes a flexible transparent window pane that covers the screened opening in the flexible sidewall... | 06/22/1999 |
| 5462330 | Folding camping/cargo trailer A camper/cargo trailer having an upper tent structure mounted upon a wheel mounted trailer box where the upper tent structure is movable between erected and folded positions with respect to the trailer box. The movable framework has a maximum height and w... | 10/31/1995 |
| 5417468 | Recreational vehicle foldable deck The deck system includes a generally rectangular platform hingedly securable along an edge to a bottom edge of a recreational vehicle for pivotal movement between an extended position in which it lies substantially horizontally along a side of the recreat... | 05/23/1995 |
| 5143417 | Shelving unit for collapsible campers A shelf for a platform of a fold-down camper is provided, having an end frame with a first and second leg pivotally coupled to opposite sides of the platform and adapted to pivot from a first position substantially parallel to the platform to a second pos... | 09/01/1992 |
| 5061006 | Method for expandable sleeping compartments for vehicles An expandable sleeping compoartment, mounted on a vehicle, is made by placing, externally onto the vehicle, a rigid casing around a vehicle opening, a separate canopy, and a separate canopy support structure. The canopy and the canopy support structure ar... | 10/29/1991 |
| 4960299 | Mobile accommodation structure with extension unit A mobile accommodation structure such as a caravan or motor home is provided with at least one foldable extension (21, 22, 23) which can be erected from at least one side wall (12) to enlarge the interior volume enclosed by the mobile structure; the exten... | 10/02/1990 |