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Patent No. 6295668

Maternity Beach Chair

A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.

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Class 403/124 - Plural concave surfaces with diverse curvature


Subclass of Class 403 - Joints and connections
Definition: Structure comprising a plurality of distinct concave bearing
No. of patents: 28
Last issue date: 11/22/2011


NumberTitleIssue Date
8061921Insert-molded ball joint
Disclosed herein is an insert-molded ball joint which is configured such that rotational frictional torque of a ball stud is kept below the appropriate level, pull-out strength of the ball stud is increased, and play of the ball stud is minimized. The ball stud has ...
11/22/2011
7168879Plug-in coupling allowing for compensating movements
A plug-in coupling for removably interconnecting a first structural member and a second structural member comprises a resiliently deformable female coupling part adapted to be inserted into a socket at the first structural member such that it is retained therein. Th...
01/30/2007
7144182Ball joint construction
A ball joint having a housing with a cylindrical cavity that has an open receiving end and a closed retaining end receives a polymeric insert and a non-deformable insert therein. The polymeric insert has a cylindrical outer wall that extends upwardly from a base and...
12/05/2006
7125192Joint
A ball-stud joint having a flange on a stud thereof, the flange having a sloping side for making it easy to locate centrally the stud relatively to a lower die jig. The ball stud is comprised of a ball fit for pivoting movement into a major body, a stud having a pla...
10/24/2006
7037022Ball-and-socket joint
A ball-and-socket joint, preferably for chassis suspensions and/or steering mechanisms of motor vehicles, is presented, which has a ball pivot pin (1), which is accommodated rotatably and tiltably in a joint housing (8) with one of its free ends with a...
05/02/2006
7014382Self-centering ball-and-socket joint method and apparatus
A self-centering ball and socket joint for connecting parts requiring restricted angular movement in a pre-established direction, and free rotary movement in a corresponding direction. The joint is comprised of a spherical pin (01) with an encased end, and an...
03/21/2006
6932197Gimbaled pad support
A disc brake assembly is disclosed which is attachable to the wheel supporting portion of the frame of a cycle and which allows the orientation of the planar braking surface of the brake pad assembly to be infinitely variable within a defined range The disc brake as...
08/23/2005
6923109Mounting mechanism for a push rod of a master cylinder
A hollow cylinder has an opening at one end, and a push rod passes through the opening so that a coupling at one end of the push rod is in the cylinder. A piston is reciprocally movably in the cylinder, and a spring urges the piston into contact with the coupling. T...
08/02/2005
6776552Ball joint with spherical rollers
A ball joint which uses spherical rollers to reduce the torque friction which tends to inhibit the rotation of the ball within a ball joint assembly. Two sets of spherical rollers are captivated between the ball and two liner rings in the ball joint housing. The bal...
08/17/2004
6702502Ball-and-socket joint
A ball-and-socket joint, preferably for motor vehicles, in which a joint ball formed on a pivot pin is mounted movably in a bearing shell consisting of a plastic, is presented. The bearing shell has recesses accommodating lubricant on its inner jacket sur...
03/09/2004
6494635Joint mechanism
In an angularly adjustable, releasably lockable ball joint, the ball has a surface covered with polygonal patterns of spaced apart protuberances, the protuberances defining concavities. An actuator tip is provided to penetrate at least one concavity and s...
12/17/2002
6386787Ball joint with compressed pressure shell
A supporting joint having a casing and a ball pin held therein comprises, on the pin side, a support having a bearing shell and, oppositely to the pin, a pressure shell. A cutout is provided in the central region of the pressure shell. On the rear side th...
05/14/2002
6341915Rubber-cushioned ball joint with a bearing geometry which is optimized with regard to tension
A rubber-mounted ball-and-socket joint with stress-optimized bearing geometry is provided. The bearing geometry of a ball-and-socket joint mounted in a rubber-metal bearing is changed such that a sufficiently great pivot angle is guaranteed for the pivot ...
01/29/2002
6109815Joint mechanism
In an angularly adjustable, releasably lockable ball joint, the ball has a surface covered with polygonal patterns of spaced apart protuberances, the protuberances define concavities. An actuator tip is provided to penetrate at least one concavity and sim...
08/29/2000
5655848Suspension ball joint
A ball and socket pivot joint includes a housing socket, having upper and lower open ends concentrically disposed about a socket axis, receiving a ball stud including an integral stem extending through the socket lower open end with a lower semi-spherical...
08/12/1997
5638735Variable displacement compressor
A variable displacement compressor that varies its displacement by altering the inclination of a swash plate. A drive shaft is supported rotatably within a housing. A rotor is fixed to the drive shaft. A swash plate is mounted on the drive shaft and adapt...
06/17/1997
5588767Locking joint mechanism
In an angularly adjustable, releasably lockable ball joint, the ball has a surface covered with regular polygonal patterns of spaced-apart protrusions. The protrusions each define a concavity. An actuator tip is provided to penetrate the concavity and sim...
12/31/1996
5564853Ball and socket joint assembly
A bearing set for a ball socket joint comprises an outer bearing and an inner bearing with a head of a ball stud engaging a spherical inner seat face of each of the bearings. A compression pre-load is applied when the inner bearing is inserted into a cavi...
10/15/1996
5551791Ball joint
A ball joint has a housing forming a cavity, a ball in the housing, and a stem fixed to the ball and extending downward out of the housing. A rigid cover fixed in the housing upwardly closes the cavity over the ball and a metallic lower ball cup in the ca...
09/03/1996
5222881Scroll type compressor having curved surface portions between the shaft and bearing means
A scroll type compressor comprising: a crankshaft having an eccentric shaft portion formed thereon; an orbiting scroll which is given torque by the crankshaft through the eccentric shaft portion; and bearing means for rotatably supporting the crankshaft; ...
06/29/1993
4974985Ball joint
A ball joint for use in motor vehicles and comprising a one-piece ball head (4) having a simplified construction, an increased bearing surface, and including a ball portion (11) of a smaller radius adjacent to the shank (5), an inner ball portion (10) of ...
12/04/1990
4806040Ceramic ball and socket joint
A ball and socket joint which allows the precise positioning of the line of contact between the ball and the socket utilizing a spherically curved socket and an offset radius ball. The significant manufacturing difficulties associated with the shaping of ...
02/21/1989
4746247Stabilizing ring for interlocking load ring/back flange interface
An improved keyhole latch is provided for securing offshore structures in place. The back flange of the flex joint and latch assembly has a male portion and the load ring of the receptacle has a female portion. By matching the male and female portions, ro...
05/24/1988
4638893Means for transmitting brake force
In a key activated vehicle drum brake telescopically displaceable variable force transmitting elements have been arranged between the key and the brake shoes of the brake. In order to provide a design counteracting axial displacement of the brake shoes th...
01/27/1987
4287968Device at a brake actuator
A device at a brake actuator for permitting thrust force transmission between an axially movable push rod (4) of the actuator and a brake block holder (6) moving out of line with the push rod. In order to ensure force transmission irrespective of the brake blo...
09/08/1981
4286363Method of assembly for a ball and socket joint
The invention is a method of assembly for a ball-and-socket joint of the preloaded type with automatic taking up of play, comprising a housing, a pivot, a bearing element disposed between these later and a locking ring. After the disposing in the housing ...
09/01/1981
4185544Piston for combustion engines
A piston comprising a lower part with a bore having a concave surface against which abuts the convex surface of a head of an expansion socket, the center of curvature of the concave surface lying on the axis of the bore and the head being formed in two ha...
01/29/1980
4129343Unitary self-aligning bearing assembly
A self-aligning bearing has an outer radial bearing ring formed with a convex outer surface mounted in a concave outer casing having a complementary surface to provide limited universal angular movement of the bearing. Axial thrust bearings are provided a...
12/12/1978
 
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