Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7334357 | Snowplow impact reduction system An improved front hitch assembly is provided for mounting a snowplow to the front of a vehicle. The hitch assembly includes a pair of mounting brackets secured to the vehicle frame, and a pair of receivers releasably connected to the mounting brackets. The plow incl... | 02/26/2008 |
| 7204505 | Stowaway, receiver hitch A trunnion, adapted to fit in a receiver, attached to a vehicle as a receiver-type hitch system, provides selective deployment and stowage of a hitch. An optional base secured to the trunnion may receive a pivot. A mount, secured by the pivot to the base, swings bet... | 04/17/2007 |
| 7125034 | Towing hitch assembly A towing hitch assembly adapted to be connected to a towing unit and a towed unit is disclosed. In general, the towing hitch assembly comprises a support connector releasably attachable to a towing hitch of a towing vehicle and pivotally connected to at least two ar... | 10/24/2006 |
| 7121575 | Motorcycle trailer A motorcycle trailer with an aerodynamic storage compartment and a two-wheel independent suspension. Swing arm suspensions for the wheels include swing arms pivotally mounted to the trailer above the wheel axle, wherein the swing arms are supported by wheel suspensi... | 10/17/2006 |
| 7108272 | Trailer hitch cushioning device and method for using same The present invention includes a base frame or hitch receiver which can be attached to the under surface of a pulling vehicle. A hitch frame is pivotally mounted to the base frame for pivotal movement about a horizontal axis. An air bag is positioned between the bas... | 09/19/2006 |
| 7032866 | Bracket with captured spacer A support bracket for mounting an engine component to a surface, such as to a cylinder head or engine block. In an embodiment, the support bracket includes a base member, a shelf member and a spacer. The base member has a back portion with a shape that defines a for... | 04/25/2006 |
| 6957825 | Trailer impact suppression apparatus A hitch receiving assembly for connecting a trailer to towing vehicle is disclosed. The hitch receiving assembly includes a first fixed elongate member mountable to a trailer and a second floating hitch receiving member that is separated from the fixed member by a p... | 10/25/2005 |
| 6874807 | Coupling device for a handling trolley A coupling device for a handling trolley comprises a drawbar (22) arranged at the front of the trolley and designed to co-operate with the hook (24) provided at the back of a tractor, in particular a trolley preceding a line of trolleys. The drawbar ( | 04/05/2005 |
| 6854757 | Shock absorbing trailer hitch A shock absorbing trailer hitch generally includes a socket adapted to lock onto a ball connected to the towing vehicle. The socket is connected to a lower support member which supports the bottom of a shock absorbing assembly. An inner tube extends up from the sock... | 02/15/2005 |
| 6746037 | Trailer hitch with multi-directional dampening system and spherical rod-end assembly An adjustable trailer hitch for use with automobiles, trucks, tractor-trailers, and other vehicles, and adapters for interfacing the trailer hitch to various trailer-vehicle combinations. The trailer hitch includes a first support member with least one generally ver... | 06/08/2004 |
| 6481739 | Docking assembly A docking assembly configured to allow a first medical device to move with a second medical device includes a hitch, a base, and a connector. The hitch is configured to be coupled to the first medical device. The base is spaced apart from the hitch and is... | 11/19/2002 |
| 6474674 | Hitch A hitch apparatus for removably coupling a trailer to a tow vehicle provides fore and aft cushioning, vertical cushioning and roll accommodation. When it is mounted on the tow vehicle, a mounting assembly is situate in the truck bed of the tow vehicle and... | 11/05/2002 |
| 6357778 | Hitch and trailer assembly A hitch and trailer assembly includes a trailer having a mounting member and a hitch receiver mountable to a motor vehicle for receiving the mounting member. The hitch and trailer assembly also include a plurality of rollers for connection to one of the t... | 03/19/2002 |
| 6042135 | Hitch assembly and trailer A hitch assembly and a trailer for a motor vehicle includes a hitch receiver mounted to a motor vehicle and mounting member securable to the hitch receiver, an adaptor structure secured to the mounting member, a receiving tube having a top end and a botto... | 03/28/2000 |
| 5984341 | Weight distributing hitch and slide bracket assembly A weight distributing and sway controlling hitch assembly for towing a trailer behind a vehicle includes a hitch bar for mounting to a vehicle. The hitch assembly also includes a ball mount head carried on the hitch bar and a hitch connector carried on th... | 11/16/1999 |
| 5915715 | Y-shaped tow bar having cushioned legs A Y-shaped tow bar includes extensible legs which are rotatably mounted to the trunk of the tow bar. Each leg may be locked into a nominally extended position wherein further extension and compression is resistingly and constrainedly permitted by a pair o... | 06/29/1999 |
| 5868415 | Cushion coupler A coupling device for attaching a towed vehicle, such as a trailer, to a towing vehicle, such as a truck, where the coupling device includes a securing assembly for removably securing the coupling device to the towing vehicle, a generally longitudinally e... | 02/09/1999 |
| 5823560 | Two way cushioning trailer hitch Trailer hitch apparatus including dampening mechanisms to simultaneously dampen vibration and shock in a longitudinal direction and vertical direction. The apparatus consists of a hollow draw bar tube capable of being removably coupled to a vehicle mounte... | 10/20/1998 |
| 5799965 | Hitch having spring bars with integral hanger A weight distributing hitch includes a hitch bar for mounting to a vehicle, a ball mount head carried on the hitch bar, a hitch ball and a pair of spring bars. Each spring bar includes an integral lug for engaging a trailer and securing the spring bar in ... | 09/01/1998 |
| 5725231 | Trailer hitch In accordance with the present invention there is provided a trailer hitch for quickly and easily connecting a trailer to a tractor including a draw bar, a primary pivot device for connecting the draw bar to the tractor, a hitching device connected to the... | 03/10/1998 |
| 5647603 | Spring bar with integral hanger A spring bar for a weight distributing hitch includes an elongated body carrying an integral hanger for securing to a trailer to be towed behind a towing vehicle. Preferably, the integral hanger is a lug with a cooperating retaining tab. The spring bar al... | 07/15/1997 |
| 5417539 | Transportation trailer for a modular home unit A trailer for lifting and transporting large loads is constructed of a pair of elongated side trusses, adjustably connected together at their ends by structural frames, and having a plurality of lifter frames rotatably and slidably mounted on the elongate... | 05/23/1995 |
| 4991864 | Force absorber for a tow vehicle-trailer connection A device for absorbing forces between a tow vehicle and a trailer, such as a fifth wheel, is disclosed. Preferably, the device is mountable in a pick-up truck bed with a cross bar between two force absorbers having biasing precompressed springs to absorb ... | 02/12/1991 |
| 4978133 | Trailer hitch shock absorber A trailer hitch adapter is provided for connection either to a trailer hitch ball or to a trailer hitch tongue. The adapter includes a tubular member that defines a housing and a connecting member carried within the housing between a pair of resilient ele... | 12/18/1990 |
| 4741273 | Rail semi-trailer and releasable coupler A semi-trailer and its releasable coupler for use in rail transportation of intermodal containers and other adaptable cargo. That capability is met by structuring a centered longitudinal beam to the cargo deck and fitting it with the releasable coupler of... | 05/03/1988 |
| 4699394 | Safety hauling coupler The present invention comprises a safety towing coupler having a buffer rod, a spring, two annular bodies, two connection rods, two extension rods, two sleeve pipes and two connection hooks. Each connection hook has an eccentric hole and an inverted hook.... | 10/13/1987 |
| 4593925 | Safety hauling coupler A safety hauling coupler characterized by comprising a buffer tube with a spring fitted there-over and a slot made therein, two extension tubes respectively fitted over and fixed to one end of the buffer tube by means of retaining pins, two connecting tub... | 06/10/1986 |
| 4421340 | Coupling means comprising a centering device and a locking mechanism for a motor driven utility unit having a complementary unit A vehicle, especially an automotive utility vehicle, of the type having a motor driven vehicle unit and a towable complementary unit, such as the type utilized for fire fighting or rescue operations, is provided with an improved arrangement for coupling o... | 12/20/1983 |
| 4279319 | Hydraulic control system for vehicle axle suspension A control circuit for controlling the hydraulic suspension system of an articulated vehicle having a first pair of hydraulic cylinders operatively connected between a drive axle and a tractor frame to control vertical bounce movement of the axle, and a se... | 07/21/1981 |
| 4265465 | Trailer bumper hitch A spring assembly is carried by a mounting casting. The mounting casting includes a receptacle which is adapted to mount to a horizontal frame member by means of a vertical bolt which, when tightened, adjusts the elevation of the spring assembly by rotati... | 05/05/1981 |
| 4077650 | Cushioning means for goose neck hitch A goose neck hitch device includes a hitch frame comprised of a pair of vertical frame members adapted to be secured to the front of a trailer and a pair of longitudinal frame members which are secured to the upper ends of the vertical frame members and c... | 03/07/1978 |
