A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7216516 | Wobble joint A wobble joint particularly useful for supporting a wash plate in a wash basket of an automatic washing appliance includes inner and outer races formed with mating part-spherical surfaces having common centers of curvature about a longitudinal axis of the joint. Ant... | 05/15/2007 |
| 7090634 | Driving system for a separator having a centrifugal drum and a neck bearing A driving system for a separator having a centrifugal drum with a vertical axis of rotation. The driving system includes a vertically aligned driving spindle configured to accommodate a centrifugal drum. The driving spindle is arranged by a neck bearing and a footst... | 08/15/2006 |
| 7090402 | Thrust bearing A thrust bearing and method of assembling a thrust bearing, the bearing comprising: an outer housing having a substantially circular base, wherein a cylindrical side wall and a central post are upstanding from the base; an outer ball seated on and at least partially... | 08/15/2006 |
| 6116990 | Adjustable low profile gimbal system for chemical mechanical polishing A low profile gimbal system is provided to greatly reduce the generation of moments about a pivot point of the gimbal system during polishing processes. The gimbal system is adjustable so that a preferred balance between stiffness and friction may be sele... | 09/12/2000 |
| 5899798 | Low profile, low hysteresis force feedback gimbal system for chemical mechanical polishing A low profile, low hysteresis force feedback gimbal system is provided to greatly reduce the generation of moments about a pivot point of the gimbal system during polishing processes. A load cell is placed directly above a contact pin of the gimbal system... | 05/04/1999 |
| 5381285 | Bearing arrangement, device with rotatable disc, and magnetic-tape apparatus A bearing arrangement (15), in particular for a device (1) with a rotatable disc or a magnetic-tape apparatus (101) has a shaft (19) which is connected to an auxiliary member (23) via a hinge (21). The shaft (19) is radially supported and the auxiliary me... | 01/10/1995 |
| 5090822 | Bearing arrangement for high-speed shafts An improved bearing arrangement for a high-speed, preferably vertical, shaft having a bearing body which takes up both the axial and the radial bearing forces. The bearing body is clamped or mounted in a fixed support solely by means of at least one elast... | 02/25/1992 |
| 5054940 | Ceramic bearing A ceramic bearing comprising a ceramic-made outer ring provided with a non spherical curved inner slide face, and a ceramic-made inner ring provided with an outer slide face so curved as to match with the curved inner slide face formed in the inner circum... | 10/08/1991 |
| 4714355 | Compensating device for rolling stands with rolls supported at only one end Compensating device able to compensate the load acting on e upper bearings (13-17) of shafts of rolls (10) supported at only one end on rolling stands (18), such rolls (10) comprising shafts (11) having at least two bearings (13-14), an upper bearing (13)... | 12/22/1987 |
| 4645430 | Wet motor gerotor fuel pump with self-aligning bearing A wet motor gerotor pump has an armature including first and second shaft ends. The outlet housing has a bore with a bushing mounted therein for positioning the second shaft end and for rotatably supporting the second shaft end, the bushing has an exterio... | 02/24/1987 |
| 4485743 | High efficiency semi-articulated railway power truck A semi-articulated railway power truck has in preferred embodiment a pair of dual axle sub-trucks semi-articulated for creep force balancing turning control while retaining freedom of rocking and relative longitudinal motion. An equalized centered bolster... | 12/04/1984 |
| 4427310 | Lubricated bearing A lubricated bearing has a rotatable structure which includes a housing with an opening at one end, a bearing cup and a retaining member. The retaining member grips the exterior of the bearing cup and the interior of the housing to secure the bearing cup ... | 01/24/1984 |
| 4358168 | Thrust bearing A thrust bearing comprises a pair of bearing members and an intermediate seat member. The two bearing members are mountable to a rotating shaft and each includes a substantially spherical bearing surface. The seat member is held between the bearing member... | 11/09/1982 |
| 4303281 | Magnetic ball thrust bearing There is disclosed a variety of magnetic ball thrust bearings in use in low friction applications such as anemometers, drills or the like wherein a permanent magnet or other source of magnetomotive force produces a magnetic flux in a closed path which pas... | 12/01/1981 |
| 4284262 | Magnetically actuated stopper valve A packless magnetically actuated stopper valve. A driven magnet assembly is rotatably mounted inside a nonmagnetic bonnet. A drive magnetic holder surrounds the bonnet and rotates thereon. The driven magnet assembly turns a stopper positioned in the main ... | 08/18/1981 |
| 4270064 | Heat exchange arrangement for cooling lubricant for vertical electric motor thrust bearing A vertical electric motor embodying the invention has a housing including a cylindrical frame enclosing a stator, a rotor and a shaft affixed to the rotor and mounted for rotation about a vertical axis, upper and lower end frames, a heat generating thrust... | 05/26/1981 |
| 4266565 | Dishwasher spray arm mounting An upper spray arm is mounted to the underside of the upper dish rack of a dishwasher and rotates in response to a jet of water supplied through the lower spray arm. The upper spray arm mounting is provided with a self-aligning bearing which includes a st... | 05/12/1981 |
| 4243223 | Spinner apparatus A spinner that is readily disassembled for repair, replacement or storage consisting of a cylindrical post element removably receiving a rotatable apertured spinner element. The post element is tapered at one end and has an enlarged cap on the other end. ... | 01/06/1981 |
| 4235483 | Bearing support stand A support stand for bearings for rotating shafts in which a supporting plate carries the bearing and rests on a spring. The latter is resilient in the direction of the shaft, and is substantially rigid in a plane perpendicular to the shaft. The supporting... | 11/25/1980 |
| 4224833 | Rack and pinion steering, especially for motor vehicles The invention provides a steering assembly comprising a gear rack actuated by a pinion shaft rotated by a steering spindle wherein misalignment of the teeth of the gear rack and of the teeth of the pinion shaft can be readily adjusted for the entire flank... | 09/30/1980 |
| 4223853 | Device for rolling on and off safety belts, especially of motor vehicles A device for rolling on and off safety belts, especially a motor vehicles, which includes a housing and a shaft rotatably journalled in said housing and spring urged in the winding up direction of the safety belt. The safety belt by pulling thereof is ada... | 09/23/1980 |
| 4037887 | Universal-joint assemblies and self-aligning thrust bearings, especially for the shafts of rotating machines A thrust-bearing and guiding assembly which permits limited angular displment of a rotating shaft in any axial plane while preventing axial translation motion of the shaft comprises a bearing support articulated within a stator housing. The bearing suppo... | 07/26/1977 |
| 3931875 | Self-aligning clutch bearing assembly A clutch release bearing wherein an annular wear plate is supported on the outer race structure of the bearing for limited displacement relative thereto by means of a resilient annular element. When the bearing is shifted axially of the clutch to uncouple... | 01/13/1976 |