Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7891645 | Adjustable and progressive coil spring system for two wheeled vehicles An adjustable coil spring system placed within a leg of a vehicle such as a mountain bicycle fork. The spring system comprises an adjustable first soft spring seated on top of a second firm spring having greater length than the first soft spring. A coupler assembly ... | 02/22/2011 |
| 7231702 | Connector and method of use thereof A connecting structure is provided. The structure includes a post with a first end, middle portion, and a second end, a plurality of prongs flexibly connected to the first end, extending toward the second end in a V-shape. ... | 06/19/2007 |
| 7197807 | Castellated snap ring retention system and method The present invention provides a system and method for releasably retaining at least one coil spring. The present invention utilizes a circumferential castellation formed within a housing operable to receive within the notches formed by the castellation a compliment... | 04/03/2007 |
| 7175567 | Gymnastics springboard with adjustable elasticity designed for training and competition A gymnastics springboard with adjustable elasticity comprising a top board coated with a coating subdivided into two distinct zones enabling the impact zone to be demarcated visually, which presents a homogeneous and flexible structure with a hardness able to be adj... | 02/13/2007 |
| 7152854 | Spring mechanism and cell contact mechanism for small electronic device In a cell cover according to the present invention, a compressed coil spring formed by deforming a linear elastic member is fixed to a plate member provided with a raised bent portion as a projection on a first side. The raised bent portion engages with an engagemen... | 12/26/2006 |
| 7147380 | Pressure screw assembly primarily used with an axially guided locking ring to permit controlled axial clearance movement of the chock bearing A locking ring assembly retains a bearing to a shaft rotatably supported on a first axis of rotation. Guide pins or rods extend axially from an annularly shaped bearing retainer slideably disposed on the shaft towards the pressure ring, also slideably disposed on th... | 12/12/2006 |
| 7025343 | Adjusting method and adjusting mechanism for remedying the coil pitch tolerance and fatigue deformation of adjustable helical spring In an adjusting method for remedying the coil pitch tolerance and fatigue deformation of an adjustable helical spring, an adjusting mechanism is mounted at one end of the casing for the adjustable helical spring for changing the precompression or the pretension of t... | 04/11/2006 |
| 6357729 | Weight adjusting mechanism for a suspension seat A weight adjusting mechanism is mounted in a suspension seat and includes a lower frame and an upper frame vertically movably mounted on the lower frame via a link mechanism. The upper and lower frames have respective permanent magnets mounted thereon wit... | 03/19/2002 |
| 6341767 | Spring for valve control in engines A spring system includes an axially moving center attachment located between two static attachments. Bi-directional axial center deflections cause push-pull restoration forces. There is little mechanical fixturing preload stress acting on material also su... | 01/29/2002 |
| 6299150 | Composite spring mount shock absorber A spring element is made of a spring material and is formed into a generally elliptical shape. Two mounting pins extend in a normal direction through parallel relatively short segments of said elliptically-shaped spring element. The mounting pins are subs... | 10/09/2001 |
| 6186488 | Arrangement for blocking a spring in a spring strut An arrangement is provided for blocking a spring in a spring strut of a motor vehicle. A spacer element for transporting a vehicle consists of at least one segment which can be snapped into the spring and is supported by a lower free end on a stationary s... | 02/13/2001 |
| 6065548 | Spring trip standard having reduced spring buckling forces A spring trip standard for a tillage implement includes a coil spring compressed between an upper spring-abutting surface on the mounting bracket and a lower spring abutment surface on a casting which is connected by a transverse pivot to the mounting bra... | 05/23/2000 |
| 5992834 | Device for supporting a spring pack against compression instability displacement A spring support assembly for preventing compression instability displacement of helically coiled compression springs includes first and second support rings located at axially opposite ends of an arrangement of coil springs, the springs located at equal ... | 11/30/1999 |
| 5924683 | Self-contained spring balance system The invention pertains to a spring balance system for sliding windows. The self-contained apparatus comprises a small diameter tube (11) and a larger diameter tube (12). The two tubes are telescopic with respect to one another. A spring (15) extends throu... | 07/20/1999 |
| 5839963 | Play apparatus for children's playgrounds or the like A play apparatus for children's playgrounds or the like includes a helical spring one end of which is perpendicularly secured to a firm base or ground, and a support member with a seat and a grip is attached to the other end of the helical spring. A base ... | 11/24/1998 |
| 5624104 | Vibration isolating supporter It is an object to effectively and rapidly damp vibration of a vibrating object. A vibration isolating supporter includes a coil spring (3) interposed between an upper frame (1) and a lower frame (2) which are opposed to one another in a vertical directio... | 04/29/1997 |
| 5595371 | Vibration isolating supporter It is an object to effectively and rapidly damp vibration of a vibrating object. A vibration isolating supporter includes a coil spring (3) interposed between an upper frame (1) and a lower frame (2) which are opposed to one another in a vertical directio... | 01/21/1997 |
| 5468383 | Fluid filter holder This invention is a device for holding a flexible fine mesh fluid filter 30 in a container 12 while a fluid, such as paint, is being drawn from the container by spraying equipment 8. More specifically, the invention comprises a ring of flexible material 2... | 11/21/1995 |
| 5257762 | Neon tube support having molded spring and method of making the support A unitary helical coil spring assembly is inserted in a tubular body to form a neon tube support. The assembly is molded of plastic using a mold comprised of two planar blocks in each of which there are a series of axially spaced apart recesses configured... | 11/02/1993 |
| 5213301 | Suspension system for isolating vibrations A suspension system for isolating a platform from external vibrations includes spring assemblies suspending the platform. In each spring assembly an elongated outer coil spring is suspended at an upper end thereof from a support structure. A tube is dispo... | 05/25/1993 |
| 5171000 | Adjustable rocker spring apparatus An adjustable rocker spring apparatus for adjustably positioning a rocker block of a rocking chair relative to a stationary base of the chair. The apparatus generally comprises an L-shaped upper bracket and an L-shaped lower bracket each having forward, c... | 12/15/1992 |
| 5156451 | Apparatus having a high center of gravity with energy absorbing device An apparatus having a high center of gravity incorporating an energy absorbing device is disclosed. The energy absorbing device includes a rapidly extending shock absorbing device to absorb and thereby dampen the forward motion of an apparatus having a hi... | 10/20/1992 |
| 5123591 | Radiator hose with internally mounted thermostat An improvement in devices for the thermostatic control of engine coolant comprises a radiator hose with an internally mounted thermostatic valve. In one embodiment of the improved device, a flexible hose has a radially inwardly projecting annular flange o... | 06/23/1992 |
| 5062617 | Shock absorbing support post There is provided a new and useful shock absorbing support post for a bicycle seat comprising a tubular member having top and bottom ends, a shock absorber within the tubular member, an elongated cylindrical stem partially within and in sliding engagement... | 11/05/1991 |
| 4856765 | Spring apparatus A spring apparatus has a spring body including a plurality of elastic longitudinal beam members and a coupling beam member for holding the elastic longitudinal beam members at a predetermined interval. The apparatus further has a pair of spring retaining ... | 08/15/1989 |
| 4848757 | Remote center compliance device with fully or partially coil-bound springs An improved remote center compliance (RCC) device having translational and rotational compliance. The RCC device includes at least two spaced monolithic members having a common axis extending therethrough. Adjacent pairs of monolithic members are intercon... | 07/18/1989 |
| 4832321 | Variable stiffness spring suspension The invention herein is a coil spring assembly for the suspension of a vele including a series of plates whose tapered edges protrude between the coils of the spring. The plates are slideably mounted on bolts parallel to the longitudinal axis of the spri... | 05/23/1989 |
| 4830345 | Spring-loaded seat assembly A cushion comprising two seat pieces combined with inside faces facing towards each other, and a plurality of coil spring members which connect the two seat pieces. Each of the seat pieces is a shallow circular plate having a smooth central concavity and ... | 05/16/1989 |
| 4728087 | Anchoring arrangement for heavy coil springs, primarily in coil spring carried playground devices Adjacent the rigidly anchored end of a vertical coil spring, which carries out transverse oscillations, the spring is subjected to considerable breaking forces which limit the lifetime of the spring. At least one abutment is provided to cooperate with a s... | 03/01/1988 |
| 4685174 | Shock absorbing caster wheel suspension with frictional vertical oscillation dampening A shock absorbing caster wheel in which the wheel support bracket is pivotally mounted on a caster bracket and a spring engages the wheel support bracket and caster bracket to absorb shocks on the caster wheel. Vibration dampening pads on the caster brack... | 08/11/1987 |
| 4613119 | Suspension device with a compensatory spring system A suspension device for suspendingly supporting loads under a generally constant spring-biasing support force defined by two relatively movable portions, a first of the portions being secured to a support and a second of the portions being secured to a lo... | 09/23/1986 |
| 4497500 | Spring action ride-on toy An animal-simulating child's ride-on toy has head and foreleg members that are capable of being turned independently of the body, and has a unique suspension system that is accommodated in the body without disfiguring structure, thereby enhancing the life... | 02/05/1985 |
| 4400186 | Constant tension device for filter bag A constant tension device is provided for use with a filter bag. The device includes a spring and a linkage assembly for applying tension to the filter bag. The linkage assembly is designed such that a substantially constant tension is applied to the bag ... | 08/23/1983 |
| 4351521 | Riding toy for children with spring support base A spring support base for a child's riding toy having a substantially stress resistant detachable connection between the child's riding seat and a spring, and a wide stance assembly for the spring in which the assembly permits legs to be attached by a sin... | 09/28/1982 |
| 4269661 | Top nozzle for a nuclear reactor fuel assembly A top nozzle for a nuclear reactor fuel assembly which includes an orifice plate designed to receive control rod guide tubes extending upwardly from the top of the fuel assembly. Nozzle pin extensions connected to the orifice plate are axially coextensive... | 05/26/1981 |
| 4103881 | Load regulator A load regulator is adjustably mounted in a machine for loading a workpiece and comprises inverted telescoping cup-shaped piston and cylinder elements defining a variable length chamber for a coil spring. Cooperating indicia on the piston and cylinder pro... | 08/01/1978 |
| 4006873 | Spring support A spring support device has a housing; a coil spring having one end supported in the housing and another end carrying a spring disc; at least two bell crank levers arranged on the spring disc symmetrically to the coil spring; and a fulcrum slidably and pi... | 02/08/1977 |
