Bizarre Patents
An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7331548 | Control linkage for T-tail aircraft elevator surfaces Systems and methods for implementing control linkages that may be employed to produce synchronous motion in two adjacent controlled devices controlled by a common input. In one example implementation, a semi-rigid modified constant velocity (CV) joint control linkag... | 02/19/2008 |
| 7220182 | Axially spaced perpendicularly disposed rigidly slidable radial dual torque pin universal rotary shaft coupling Large parallel and angular misalignment capabilities between coupled rotary shafts are provided in a torsionally rigid coupling by slidable and rotatable medial mounting of each of two radial, axially spaced, perpendicularly disposed torque pins through axially spac... | 05/22/2007 |
| 7172473 | Rudder indicator A rudder position indicator apparatus includes a cam mounted on a steering linkage of a watercraft. The steering linkage is or an outdrive. When the rudder or an outdrive is in a straight position, the cam activates a micro switch, which in turn, supplies a ground f... | 02/06/2007 |
| 7037202 | Rigid bent bar self-supporting CV joint A torque transfer device is disclosed that utilizes one or more universal joints to transfer rotary motion between first and second shafts that rotate about non-aligned axes of rotation. The torque transfer device maintains these rotational axes at a fixed angle whi... | 05/02/2006 |
| 6949025 | Downhole motor universal joint assembly A downhole motor universal joint assembly includes a female coupler which receives a male end of a drive shaft. The female coupler has a retainer that prevents separation of the male end and the female coupler. The retainer has a rearward extending skirt with flow p... | 09/27/2005 |
| 6672967 | Axial displacement universal joint A connection between two shafts, the shafts can be faced in different directions. Each shaft having a first fork at one end for hingedly joining the respective shaft to a second fork. The second forks are mechanically joined to each other by an axial disp... | 01/06/2004 |
| 6641324 | Joint assembly and joint socket sleeve A joint assembly and a joint socket sleeve. The joint assembly includes a first yoke including a ball portion, a second yoke including a socket portion and a socket sleeve. The socket sleeve has a continuous side wall defining an opening for receiving the... | 11/04/2003 |
| 6626764 | Ball cam centering mechanism A universal joint (300) includes a centering device (110) for supporting the universal joint and forcing the two joint halves to operate at the same angle thereby causing the joint to operate at constant velocity at all angles. Each shaft (115, 116) of th... | 09/30/2003 |
| 6389921 | Wrist mechanism of industrial robot A wrist mechanism of an industrial robot is described which have a first ring-shaped hollow reduction unit secured to an arm of the robot, and a first hollow drive tube and a second ring-shaped hollow reduction unit secured to an output shaft of the first... | 05/21/2002 |
| 6354951 | Drive assembly with a setting device A drive assembly for an agricultural implement (1) has a first implement portion (2) and a second implement portion (3) pivotable relative to the first implement portion (2) around a pivot axis (x). The first implement portion (2) has a first rotary drivi... | 03/12/2002 |
| 6251020 | Ball cam centering mechanism A universal, joint (300) includes a centering device (110) for supporting the universal joint and forcing the two joint halves to operate at the same angle thereby causing the joint to operate at constant velocity at all angles. Each shaft (115, 116) of t... | 06/26/2001 |
| 6139437 | Equal angle guide mechanism for double universal joints Two shafts in a double universal joint system are linked so that swivel of one shaft about a first pivot point in one universal joint results in a corresponding amount of swivel in the other shaft about a second pivot point in the other universal joint. T... | 10/31/2000 |
| 6129634 | Thrust washer for universal joint A universal joint assembly includes a cross having a plurality of trunnions extending outwardly therefrom. An internal passageway is formed in each of the trunnions that extends through to the outer end thereof. A bearing cup is disposed about each of the... | 10/10/2000 |
| 6123621 | Joint floor transmitting shifting forces from a gear shifting system of a transmission to a transmission drive member A joint for transmitting shifting forces from a gear-shifting system of a transmission to a transmission drive member includes a pair of joint parts (1, 2) frictionally locked to the transmission drive member and to the gear-shifting system, a coupling (3... | 09/26/2000 |
| 5964664 | CV drive shaft construction A shaft construction transmits power from a vehicle to a driven mechanism located on an implement. The shaft construction includes a first shaft having a first end coupled to the driving shaft of the vehicle. A second end of the first shaft is coupled to ... | 10/12/1999 |
| 5551919 | Steering column assembly A steering column assembly having a steering wheel connected to a steering box by upper and lower shafts. A universal joint having a flexible cross member connects the upper and lower shafts.... | 09/03/1996 |
| 5469931 | Propeller shaft arrangement The propeller shaft arrangement which connects a transmission with a differential gear of a vehicle includes a first propeller shaft segment connected to the transmission at one end thereof and a second propeller shaft segment connected to the differentia... | 11/28/1995 |
| 5427192 | Sliding pedestal shaft for PTO driven implements An implement is coupled for being driven and towed by a tractor. A pedestal shaft is slidably mounted to the tongue of the implement and is coupled to the tractor PTO by a telescopic shaft which during turning and certain rolling and or pitching condition... | 06/27/1995 |
| 5425676 | Universal joint having centering device A universal joint includes a centering device for maintaining the joint at constant velocity. Each shaft of the joint is connected to a ball stud. Movement of one of the shafts at an angle relative to the longitudinal axis of the coupling device is transm... | 06/20/1995 |
| 5385506 | Hub-spider drive assembly for a Hooke's joint A hub-spider assembly for a Hooke's joint in which the arms of the spider (2) include a first shaft (4), having a through-hole (41) bored in a central boss (42), the through-hole (41) axis being perpendicular to the axis of the first shaft (4), and a seco... | 01/31/1995 |
| 5360377 | Extra short telescopic transmission shaft with shaft section diameters greater than coupling fork diameters An extra short transmission shaft has two telescopically fitted tubular shaft sections (6,7) having diameters (D',D) substantially greater than the basic diameters of coupling forks (8,9) associated with respective ends of the shaft sections. The increase... | 11/01/1994 |
| 5277659 | Universal joint having exterior, lubricating ring A universal joint (310) includes a yoke (311) in which is disposed a dual trunnion (312) and which is disposed in a ring (315). Pins (321, 322) connect the ring to the dual trunnion and to the yoke. Lubricant in a non-continuous lubricant channel (319), e... | 01/11/1994 |
| 5183129 | Collapsible scooter An improved, highly portable, collapsible scooter having a front frame extending upwardly from a front portion of a lower frame and being pivotally secured thereto. The front frame is secured at its upper end to steering means, and a front wheel is rotata... | 02/02/1993 |
| 5094651 | Universal joint having hemispherical cup-shaped yoke and exterior, lubricating ring A universal joint (310) includes a substantially hemispherical cup-shaped yoke (311) in which is disposed a cross trunnion (312) and which is disposed in a ring (315). Pins (321, 322) connect the ring to the cross trunnion and to the yoke. Lubricant in an... | 03/10/1992 |
| 4964840 | Universal coupling having a ring intermediate element A steering control mechanism of a vehicle steering box connected to a steering wheel through a shaft and a coupling for coupling two generally shaft-shaped elements in such manner that a rotational force can be transferred from one element to the other wh... | 10/23/1990 |
| 4772246 | Downhole motor drive shaft universal joint assembly A universal joint assembly comprises a first rotary member having a first longitudinal axis and an outer tubular portion at one end thereof concentrically disposed about the axis, a second rotary member having a second longitudinal axis and an inner tubul... | 09/20/1988 |
| 4744264 | Hollow non-singular robot wrist The end of a robot arm includes two links, a first or inner link supported rotatably about a central axis and an end link on which a tool is carried. Located between the links are a ring and a tube whose longitudinal axes are concentric. Each of four gimb... | 05/17/1988 |
| 4724716 | Joint mechanism A joint mechanism in which a plurality of joints are connected in series and each of the joints may be folded. A chain-like connection of intermediate links (L1, . . . ) through universal joints (U1, . . . ) enables the intermediate ... | 02/16/1988 |
| 4693699 | Seal assembly for rotary and reciprocating motion A seal arrangement for providing a reliable seal between a shaft and an opening through which the shaft passes where the shaft undergoes both rotary and axial movement relative to the opening. The seal assembly consists of a seal suitable for relative rot... | 09/15/1987 |
| 4548591 | Double universal joint with an elastically yieldable torque transmitting element The double universal joint comprises two end yokes (1,2) each of which is connected by a spider element to an intermediate connecting device comprising an outer part (14) and an inner part (15) which are interconnected by an elastically yieldable element ... | 10/22/1985 |
| 4509932 | Double cardan universal joint with improved centering means A double Cardan universal joint is provided with improved centering members. One end yoke of the joint has circular ridges or teeth and a central tooth facing the other end yoke with the center line of the teeth being coaxial with the axis of rotation of ... | 04/09/1985 |
| 4472157 | Homokinetic universal joint A Pot-type universal joint transmits torque from one shaft to another using four rollers mounted on four trunnions. The trunnions maintain their mutual perpendicularity under all operating conditions. They are free to move relatively to each other and to ... | 09/18/1984 |
| 4468208 | Transmission device A flexible and deformable transmission device for use in transmitting torsion. The device includes two sets of elements, each including a cardan joint. Each of the element sets is held within a bearing.... | 08/28/1984 |
| 4352276 | Constant velocity universal joint with improved centering device and boot seal A constant velocity universal joint includes a centering device which restricts each cardan joint to mutually equal operating angles by the use of annular involute gear teeth designed to mesh in the homokinetic plane. A boot seal simultaneously flexes and... | 10/05/1982 |
| 4329899 | Device for converting rotary motion of crank mechanism into linear motion for a flying cutter A device for converting the rotary motion of a crank mechanism into the linear motion of a slide block. In order to enable the slide block to make a constant velocity motion in an angular range required by the crank pin and extending from the crank pin in... | 05/18/1982 |
| 4308931 | Guard for drive shaft in an articulated tractor A guard for a constant-rotating drive shaft in an articulated farm tractor in which a pair of universal joints are connected on either side of a sliding coupler in the drive shaft, the guard having a pair of U-shaped members, one member affixed to a wall ... | 01/05/1982 |
| 4300362 | Articulation for manipulator arm An articulation for a manipulation arm at one end of which a tool, e.g. a spray gun, is to be mounted has two supporting elements such as plates or rings which are intercoupled by connecting rods, and joints between the connecting rods and the supporting ... | 11/17/1981 |
| 4271685 | Double-ring universal joint The disclosure concerns a universal joint having two joint yokes. There is a ring having two pivot pairs on it with each pivot pair being for the two arms of a respective yoke. A hub is defined centrally of one yoke, and the hub extends through the ring. ... | 06/09/1981 |
| 4269080 | Coupling arrangement for transmitting torque A coupling arrangement for transmitting torque in a toy model has a Cardan joint whose one end portion is connected with a nut which is screwed on a worm gear mounted on a motor shaft, whereas the other end portion of the same is connected with a driving ... | 05/26/1981 |
| 4236420 | Wide-angle joint A wide-angle joint for use in torque transmission couplings between a driving vehicle, such as a tractor, and a driven implement, such as an agricultural machine, includes a pair of universal joints, one connected to the driving vehicle and the other to t... | 12/02/1980 |
