Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 7475899 | Trailer hitch A hitch includes a control linkage having a single handle on a control bar. The control linkage doubles to provide both a positive safety feature and a movement feature to the hitch, permitting single handed operation of both the positive safety feature and the open... | 01/13/2009 |
| 7264259 | Fifth wheel hitch assembly A fifth wheel hitch assembly includes a mounting assembly, an arched base assembly, a head assembly and a jaw assembly carried by the head assembly. The jaw assembly includes a stepped jaw body. The head assembly includes a single piece, weldless and seamless skid p... | 09/04/2007 |
| 7152869 | Fifth wheel hitch requiring reduced or no lubricant A trailer hitch assembly includes a hitch plate and a locking mechanism. The hitch plate includes a throat for receiving a kingpin of a trailer. The locking mechanism locks the kingpin in the throat and includes a pair of lock jaws whose lock jaw contact surface, wh... | 12/26/2006 |
| 7098674 | Occupant sensor An oscillatory or pulsed first signal is operatively coupled to a first electrode placed between a conductive heating element and a seating region of a seat containing the heating element. A second signal substantially equal to the first signal is operatively couple... | 08/29/2006 |
| 6935650 | Trailer hitch An improved fifth wheel hitch for attaching a trailer to a towing vehicle. The hitch includes an outer box support frame having two rails for mounting the trailer hitch to the towing vehicle, a spherical bearing mounted in the frame having a ball joint, and a latch ... | 08/30/2005 |
| 6908093 | Kingpin coupler A kingpin coupler for allowing a user to connect a trailer having a kingpin to a towing vehicle. The kingpin coupler includes a head assembly, casting, jaws and a locking slide bar. The jaws are pivotably mounted in the housing and are biased into the open position ... | 06/21/2005 |
| 6866283 | Device for indicating the locking state of a fifth wheel coupling and sensor arrangement A device is described for indicating the locking state of a fifth wheel coupling and an arrangement of a first and a second sensor. According to the prior art, the first sensor is arranged on the underside of the locking latch and monitors the position of the kingpi... | 03/15/2005 |
| 6452485 | Electronic system for monitoring a fifth wheel hitch An electronic system that includes a trailer sensor, a lock sensor and a control circuit determine whether a trailer hitch assembly is properly coupled to a trailer. The trailer sensor senses the position of the trailer relative to the trailer hitch assem... | 09/17/2002 |
| 6285278 | Electronic system for monitoring a fifth wheel hitch An electronic system monitors a trailer hitch assembly that has a hitch plate with a throat for receiving a kingpin of a trailer and a locking mechanism for locking the kingpin in throat. The system determines whether the trailer hitch assembly is properl... | 09/04/2001 |
| 5464241 | Plural height powered fifth wheel hitch A powered, adjustable height, fifth wheel hitch comprising a support plate having a front end portion and a rear end portion, a fifth wheel plate above the support plate having a front portion and a bifurcated rear portion, coaxial transverse trunnion pin... | 11/07/1995 |
| 5183284 | Coupling mechanism A coupling mechanism for mounting on a towing vehicle comprises a pair of parallel, horizontal plates that define an opening for receiving a pin oriented perpendicular to the plates, the pin being part of an assembly adapted to be mounted on a vehicle to ... | 02/02/1993 |
| 5054804 | Collapsible hitch A king pin locking plate assembly having a locking plate provided on the underside with a pair of cooperating jaws pivotally supported under the locking plate and being urged into open position by a spring member positioned between the two jaws, the two j... | 10/08/1991 |
| 4928987 | Fifth wheel coupling A fifth wheel coupling for connection of a semitrailer to a tractor unit is disclosed in which a pair of symmetrical, swivel-articulated closing jaws having semicircular recesses for grasping the king pin have a split bearing comprising an outer bearing h... | 05/29/1990 |
| 4907815 | Fifth wheel coupling A fifth wheel coupling for connecting a semitrailer to a towing vehicle, which provides two swivel-articulated closing jaws with semicircular clearances for grasping a semitrailer king pin, and means for opening and closing the jaws which provide a hydrau... | 03/13/1990 |
| 4721323 | Fifth wheel hitch A trailer hitch mountable on an upwardly facing surface of a vehicle capable of movement in a forward direction includes a base which can be fixedly secured to the upwardly facing surface and a coupling arrangement supported on the base and adapted to rel... | 01/26/1988 |
| 4592566 | Coupling mechanism for king pin A coupling mechanism for a king pin, including a plate member formed with an outer peripheral rib, a pair of jaws for receiving the king pin, a locking member for locking the jaws in its king pin engaging position, a lever for moving the locking member in... | 06/03/1986 |
| 4428595 | Fifth wheel hitch A fifth wheel hitch includes a kingpin locking mechanism having a pair of pivoting locking jaws which form a socket in which the kingpin is retained. An adjustment device varies the angular position of the closed jaws to vary the side-to-side dimension of... | 01/31/1984 |
| 4407617 | Combination manual and automatic unlocking mechanism for trailer hitch head In accordance with the present invention a lock block link 34 has a first end 36 connected to a trailer hitch bumper block 22 and a second end 40 which engages a lock block 46 which holds the hitch jaws 16 in closed position. The lock block link 34 is sup... | 10/04/1983 |
| 4375894 | Hitch head having jaws and lock block with cooperating tapered surfaces A hitch head or fifth wheel is provided including a pair of pivotable jaws which in closed position hold in place a kingpin of a highway trailer. A horizontally movable lock block engages the rear portion of the jaws and holds the jaws in closed position.... | 03/08/1983 |
| 4333666 | Hitch head having interlocking jaw mechanism A hitch head or fifth wheel is provided including a pair of pivotable jaws which hold in place a kingpin of a highway trailer. A horizontally movable lock block, biased by a stiff spring to closed position, engages the jaws and holds them in closed positi... | 06/08/1982 |
| 4185564 | Trailer hitch yoke positioning assembly In a railway car trailer hitch in which a yoke maintains a pair of jaws in position engaging the trailer king pin in closed position, a pivotably mounted cam assembly is provided which moves the yoke to the open position and a stop is automatically activa... | 01/29/1980 |
| 4106793 | Fluid wedged double lock fifth wheel A fifth wheel hitch having three kingpin engagement jaws, two being pivotally shiftable and the third being a plunger slidable in a track to engage the kingpin and simultaneously project between the two pivotal jaws to prevent opening thereof. A wedge is ... | 08/15/1978 |
| 4008904 | Fifth wheel coupling A fifth wheel coupling for mounting on a towing vehicle and for coupling to a trailer king pin, comprising a coupling plate, a pair of jaws operatively connected to the plate and having opposing king pin receiving recesses with their centers forwardly of ... | 02/22/1977 |
| 3984122 | Trailer coupling and drop-leg apparatus A semi-trailer is provided with a pair of laterally spaced drop-leg assemblies operated by a tubular cross shaft mounted on the trailer frame. These drop-leg assemblies are widely spaced and are positioned near the side boundaries of the frame. A jaw memb... | 10/05/1976 |
| 3941252 | Crane with removable superstructure Methods and apparatus are disclosed for releasably connecting a crane superstructure and a crane carrier. The apparatus includes a segmented clamp assembly which hydraulically engages mating flanges carried by the superstructure and the carrier respective... | 03/02/1976 |
