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Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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Class 213/43 - Fluid


Subclass of Class 213 - Railway draft appliances
Definition: Wherein devices of the class indicated the spring is the
No. of patents: 53
Last issue date: 12/25/2007


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NumberTitleIssue Date
7311215Positional variable orifice pin for hydraulic pressure control in a draft gear
A draft gear assembly including a housing having an open front and closed rear portions. A compressible cushioning element is positioned within the rear portion with a seating arrangement abutting one end thereof adjacent the open front portion. A friction cushionin...
12/25/2007
7309063Gas-filled spring for a vehicle, such as a motor cycle, and valve for such a gas-filled spring
A gas-filled spring (1) operates using gas (13, 14) and may be intended for a motor cycle. The gas-filled spring comprises a cylinder (2) and a piston (4), said cylinder comprising a compression chamber and a return chamber (8, 9)....
12/18/2007
7175036Long travel high capacity friction draft gear assembly
A friction clutch type draft gear assembly includes a housing having an open front end and a closed rear end forming a ledge for enabling a longer buff and draft travel while fitting into a 24.625 inch draft gear pocket. A friction clutch mechanism includes a pair o...
02/13/2007
7150368Cushioning device having an electrically actuated lockout
A rail car cushioning1 device is provided for connecting to a coupler. The rail car cushioning device includes an arrangement of a hydraulic cylinder, a piston assembly, and at least a valve assembly, which are configured with cooperating features to allow the devic...
12/19/2006
7100907Braking- and damping device, in particular for movable pieces of furniture
A braking and damping device for movable pieces of furniture has a fluid-cylinder (1) in which two pistons (2, 5) are arranged in a linearly displaceable manner. One of the pistons (2) is displaceable by a piston rod (3). Arranged between...
09/05/2006
7097055Long buff short draft travel draft gear for use in a 24.625 inch pocket
A friction-type draft gear assembly includes a housing having an open front end and a closed rear end forming a ledge to fit into a 24.625 inch draft gear pocket. The front portion incorporates an integral yoke portion with a pair of key slots for attachment to the ...
08/29/2006
6974001Temperature compensating gas spring
A gas spring provides an outer cylinder which is partitioned into a multiple of auxiliary volumes. A multiple of temperature compensation valves are located within a piston cylinder which sequentially open or close. As the temperature increases, the temperature comp...
12/13/2005
6971492Shock adapter
A shock adapter for converting a one-way shock absorber into a two-way shock absorber comprising a housing having a first slideable member located on one end and a second slideable member located on the opposite end with the housing having a chamber therein for rece...
12/06/2005
6951343Vehicle suspension apparatus
A vehicle suspension apparatus includes a first, outer telescoping component and a second, inner telescoping component. The outer telescoping component includes an outer sleeve and an outer tubular member telescoped therein for movement along an axis of the outer te...
10/04/2005
6926128Adaptive shock damping control
A shock absorber damper assembly is provided that includes a working cylinder filled with fluid. A piston and rod are disposed in the working cylinder and move along an axis to provide dampening during a compression stroke. For a twin tube arrangement, a reservoir s...
08/09/2005
6923331High capacity draft gear
A friction-type draft gear assembly includes a housing having an open front and closed rear portions. A compressible cushioning element is positioned within the rear portion with a seating arrangement abutting one end thereof adjacent the open front portion. A frict...
08/02/2005
6814348Traction/compression buffer for coupling devices on rail and wheel-mounted vehicles
A traction/compression buffer for coupling devices on rail and wheel-mounted vehicles comprises a housing (1) and a piston element (3), which projects out of said housing on one side and which can be moved out of a zero position in two directions again...
11/09/2004
6669180Gas-hydraulic shock absorber assembly
The gas-hydraulic shock absorber assembly comprises a sleeve member and a ram member movable relative to the sleeve member. In the interior of the ram member, a gas chamber is provided that is pressurized by means of a gas. In the interior of the sleeve m...
12/30/2003
6357612Rail car cushioning device and method for positioning same
A self-positioning cushioning device adapted to be mounted in the end of a rail car sill includes a hydraulic cylinder and yoke. A piston rod extends from the cylinder and is joined to one end of a yoke. The other end of the yoke is joined to a rail car c...
03/19/2002
6279765Railcar cushioning device with internal spring
A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. A spring assembly is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a ne...
08/28/2001
6199708Railcar cushioning device with internal elastomeric spring
A railcar cushioning device with a gas charged cylinder and a piston contained in the cylinder for cushioning buff and draft impacts. An elastomer spring is contained in the cylinder between the piston and an end of the cylinder to locate the piston in a ...
03/13/2001
5871109Railcar cushion device preload valving systems
A pressure relief valving system for a rail car cushion device including several preload valves mounted in the cylinder wall of the cushion device each having both spring biasing and hydraulic biasing applied to retain a valve piston against a seat until ...
02/16/1999
5845796Elastomer spring/hydraulic shock absorber cushioning device
A railcar cushioning device includes an elastomeric spring and a hydraulic shock absorber member. The fluid accumulator is located outside of and above the fluid chambers. The accumulator is in communication with the fluid chamber in a non-stroked positio...
12/08/1998
5826735Railcar cushion device valving systems
A valving system for a rail car cushion device including several pressure control relief sequence valves (PCRS) mounted in the cylinder wall of the cushion device each having hydraulic biasing applied to retain a valve piston against a seat until a preloa...
10/27/1998
5762214Railcar shock absorber backstop
A shock absorber for a railcar locates within a center sill of the railcar. The shock absorber has a housing that moves relative to the center sill. A backstop is welded to the center sill for retaining the piston shaft. The backstop has a top, a bottom a...
06/09/1998
5746335Double acting center-of-car cushioning device
A double acting center-of-car cushioning device mounted in the sliding sill of a rail car includes two pistons and rods, two pressure cylinders and mirror image sets of flow orifices in the pressure cylinders. The piston rods extend out from ends of the p...
05/05/1998
5676265Elastomer spring/hydraulic shock absorber cushioning device
A railcar cushioning device includes an elastomeric spring and a hydraulic shock absorber member. The fluid accumulator is located outside of and above the fluid chambers. The accumulator is in communication with the fluid chamber in a non-stroked positio...
10/14/1997
5653425Energy absorbers
A railway buffer capsule comprising a hollow cylindrical plunger slidably mounted in a cylinder. The cylinder is closed at one end. The plunger is closed at its outer end, and in its inner end is formed a fixed area orifice of flow restricting dimensions....
08/05/1997
5642823Railcar shock absorber with neutral position
A railcar shock absorber has neutral position in which the piston is spaced between buff and draft ends of the cylinder. An external spring is mounted to the shock absorber. A slider rod has one end mounted to the coupling to move relative to the frame of...
07/01/1997
5586669Cushioning unit fault detector
A railcar cushioning device for absorbing impact between railcars is provided having a hydraulic cylinder containing hydraulic fluid. A piston locates within the cylinder and is movable relative to the cylinder between an extended position and a contracte...
12/24/1996
5551581Single acting sliding sill cushioning unit
A rail car has a sliding sill located within a fixed frame and a shock absorber for absorbing shock. The shock absorber has a housing with inner and outer chambers containing oil and gas. A piston extends from the housing. The housing has an end plate on ...
09/03/1996
5487480Hydro-pneumatic cushioning device
An end-of-car coupler includes a hydro-pneumatic cushioning device. The latter has a ported tube separating the hydraulic cylinder chamber from an outer annular chamber containing gas. Each port is fitted with a valve, the obturating member of each valve ...
01/30/1996
5415303Railcar cushion unit
A railway car cushioning device is provided for minimizing slack between railway cars. The cushioning device is provided with a piston and piston rod disposed within the cylinder. The cylinder is filled with an oil and gas mixture. A housing surrounds the...
05/16/1995
5388711Rail car double acting piston shock absorber
A shock absorber for use with a sliding center sill rail car utilizes an internal gas type spring. The shock absorber has a housing and a cylinder located in the housing that moves with the center sill. An annular outer chamber surrounds the cylinder with...
02/14/1995
5373952Pneumatic shock absorber in compound trolley conveyor
A shock absorber in a compound trolley conveyor, including two cylinders disposed between a foremost trolley and a front trolley of the compound trolley conveyor and connected together face to face with each other, and two pistons inserted into the cylind...
12/20/1994
5076451Hydraulic cushioning unit
A hydraulic cushioning unit includes a high pressure cylinder having a piston therein and a piston rod extended through the rod end of the cylinder. The cylinder is contained within an outer housing. A head casting closes the head ends of the cylinder and...
12/31/1991
5025938Rail car cushion slider valve
A rail car cushion apparatus comprises concentric cylinder and housing members mounted at one end to a seat of a cushion apparatus body and at the other end to a cylinder head. The cylinder head includes a flow chamber and flow passages. A sleeve valve ch...
06/25/1991
4953727Piston and shaft assembly of railroad end-of-car cushioning devices and method of repairing same
This invention concerns an end-of-car hydraulic cushioning device for use on rail cars and a method of repairing such devices. The cushioning device has a piston and shaft assembly which is subject to train action forces. The piston and shaft are connecte...
09/04/1990
4805517Gas return railway car hydraulic cushioning unit and method of converting a spring return unit
A railway car hydraulic cushioning unit prevents the mixing of gas and hydraulic fluid in chambers interiorly and exteriorly of a high pressure cylinder unit by strategic placing of metering ports through the cylinder wall at positions below the level of ...
02/21/1989
4739889Railway cushioning apparatus
A cushioning apparatus for a railway car includes a housing having a cylinder bore disposed therein with an end plate closing one end of the cylinder bore. A piston assembly includes a shaft extending through the end plate and a piston disposed on the sha...
04/26/1988
4660687Energy absorbers
A railroad vehicle end-of-car center coupler includes a telescopic energy absorber comprising a hollow cylindrical plunger in a cylinder having one closed end. The plunger has an aperture in its inner end wall. A perforated metering tube is fixed in the c...
04/28/1987
4601461Lading protection device
A lading protection device in the form of a shock absorber for a railway car including a cylinder containing a piston and a body of hydraulic fluid normally captive between the front face of the piston and the closed end of the cylinder. A flow control va...
07/22/1986
4562929Backstop assembly for use with cushioning device in sill of railway car
A backstop assembly for use with a cushioning device in the sill of a railway car. The cushioning device has a body, or cylinder, slidable endwise in the sill and carrying a car coupler at its outer end. The cylinder has a piston centered on the sill axis...
01/07/1986
4334624Draft gear locking device
A lock-out apparatus for shock absorbing draft gear on a railway car which draft gear has a housing adapted to be fixed to one end of the railway car, a shock absorber is provided in the housing to cushion shock on the coupler of a railway car at the one ...
06/15/1982
4305514Plate-type friction draft gear
A high capacity plate-type friction draft gear is disclosed for utilization with railroad cars. The draft gear has a friction clutch mechanism with a special two-piece split spring seat, so that two individual spring forces can be exerted separately again...
12/15/1981
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