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Methods and apparatus for reducing the velocity of a rider in or on an open cockpit vehicle when the rider is thrown from the vehicle.

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Class 173/127 - Piston of drive motor


Subclass of Class 173 - Tool driving or impacting
Definition: Apparatus in which the hammer head comprises or is rigidly
No. of patents: 30
Last issue date: 09/11/2007


NumberTitleIssue Date
7269099Air gun
A seismic air gun includes an operating chamber, a firing chamber, a port, and a longitudinally disposed cavity sized and shaped to accept a plurality of wires. A moveable shuttle includes a shuttle flange within the operating chamber at one end and a firing shuttle...
09/11/2007
7118507Automatic reduction-ratio changing apparatus
An automatic reduction-ratio changing apparatus comprises a planetary gear mechanism including a sun gear, planet gears, and an internal gear. When a load, which exceeds a predetermined torque, is applied to the internal gear, a pawl of a lock lever is engaged with ...
10/10/2006
7025578Pump having air valve with integral pilot
A pump comprising a valve housing and a spool slidably positioned within the valve housing. The spool has a supply face, a first end face, and a second end face, and is slidable between a first position wherein pressurized supply air is supplied to the supply face a...
04/11/2006
6997269Attachment for impact hammer
An attachment for an impact hammer for translating the hammer's typical forwardly directed impact force into a rearwardly directed pulling force while still allowing the user to maintain a conventional orientation of the hammer relative to the work piece intended to...
02/14/2006
6978919Holder for a drive piston of a setting tool
A piston holder for a drive piston (8) of a setting tool and having a circumferential adjusting surface (16) inclined toward a central axis (17) thereof so that a diameter of the adjusting surface (16) increase toward a rear, with respect...
12/27/2005
6619407Air-operated hammer
The subject invention pertains to an improved air-operated hammer which can utilize a pressurized air reservoir located near a pressurized air entrance of the hammer. This pressurized air reservoir can continue to receive pressurized air even when the ham...
09/16/2003
6224294Tubular piling driving apparatus and piling installation method
A tubular piling driving apparatus and a method of securing a tubular piling into the bottom of a body of water using the apparatus. The apparatus is pressurized fluid-actuated, preferably pneumatic, and is positionable substantially within an upper end o...
05/01/2001
6209659Hand-held drill with a compressed air-operated hammer mechanism
A hand drill including a housing (2), a rotary drive (8-15) arranged in the housing (2) for driving a chuck (6) provided at a front, in the drilling direction, end of the housing and in which a drill or a chisel tool is received, a compressed air-operated...
04/03/2001
6039231Adjustable energy control valve for a fastener driving device
A pneumatic fastener driving device includes an energy control assembly constructed and arranged with respect to a passageway leading to a piston pressure chamber to be manually movable between (1) a first position wherein the passageway is opened fully t...
03/21/2000
5231750Fastener driving device with offset feed
A fluid pressure operated nailer is provided including a portable housing having a fixed generally longitudinally extending chamber axis, a fluid pressure actuated mechanism mounted in the housing for movement through successive operative cycles. The nail...
08/03/1993
5181450Pneumatic fastener driving apparatus with piston holding detent
A pneumatic operated fastener driving device having an improved piston, which together with the cylinder form an elastic interference fit connection so that the piston is held from movement until a sufficient air pressure is applied to the piston. The pis...
01/26/1993
5000365Adjustable piston-driver connection and method of adjusting
A piston and a fastener driving element connection including interengaging threads on the piston and fastener driving element and a thermoplastic locking compound between the interengaging threads. The connection being adjustable by following a method com...
03/19/1991
4669553Percussion tool
A percussion tool utilizing a reciprocatory piston movement for applying an impact force on to a working surface including a casing (1) having disposed axially therein a hammer member (12), an anvil (5) impacted by the hammer member and a chisel point (4)...
06/02/1987
4602689Power tool
A power tool, particularly a hand-held power tool, has a striking mechanism with a striker transmitting impact energy to a tool, a drive operative for actuating the striker through an air cushion, and a heat insulating element which is associated with the...
07/29/1986
4530455Piston and driver
An improved piston and driver structure includes a synthetic piston body, a bifurcated piston insert and a driver secured within the insert by means of a pin and by means of frictional engagement of the driver by the piston insert when the insert is assem...
07/23/1985
4496007Compressed-air pile-driver
A compressed-air pile-driver, especially for axially insertable tools, including a ram arranged in a housing. The interior of the housing is divided by the ram respectively into an upper compression or expansion chamber and a lower compression or expansio...
01/29/1985
4384623Pneumatic fastener gun
A pneumatic gun for forcibly inserting fixing elements, such as nails, metal staples and the like. The gun has an operating piston, carrying an arm for firing the fixing elements. The arm slides in a cylinder open at one extremity towards a compressed air...
05/24/1983
4371042Fluid operated ram
A fluid operated ram comprises a striker body guided in an upright housing between an active stroke and a return stroke and striking at the end of its active stroke an impact transmitter resting on a member to be driven into the ground by the ram. The str...
02/01/1983
4367800Subsea pile driver
The hammer of an underwater pile driving apparatus is movable upwards and downwards in a housing which, in operation, is filled with a liquid which is present both above and below the hammer, the hammer being driven at least on the upwards direction by a ...
01/11/1983
4193459Post-hole driver
A vehicle-supported post-hole driver comprises a frame adapted to be mounted on the pivot of the vehicle drawbar. It is supported in a fore-and-aft position by a fluid cylinder connected between the frame and the support vehicle, the fluid cylinder provid...
03/18/1980
4126191Gas discharge type underwater hammer with liquid purge and reflood control
An underwater hammer, of the gas discharge type, is provided with a surrounding casing arranged in the nature of a diving bell from which liquid can be purged so that the hammer ram may move up and down with minimum resistance. A reflood tube extends down...
11/21/1978
4122904Pneumatic hammer driver
An improved driver is provided wherein a pneumatically operated piston is slidably disposed in a cylinder which is adapted to vent to atmosphere through a port positioned adjacent the end wall of the cylinder. A piston cushion, anchored to the interior su...
10/31/1978
4100977Drop hammers
A drop hammer has a hydraulic cylinder and piston assembly with a hammer weight attached to the piston and a sleeve valve at the lower end of the cylinder coaxial with the cylinder. An outer casing surrounds the cylinder, forming an annular passage from t...
07/18/1978
4098355Underwater hammer with circumferential flow seal
An underwater hammer, of the gas discharge type, is provided with a circumferential control valve on the hammer ram to allow free flow of water and gas upwardly along the ram in the annular clearance between the ram and a tubular sleeve in which it is gui...
07/04/1978
4056150Ram device
A ram device has a drop hammer connected to the piston of a lifting cylinder which is connected by means of short and wide ducts to a control apparatus for admitting compressed air into the cylinder and for discharging the air from the cylinder beneath th...
11/01/1977
4043405Pile-driving arrangement
The pile-driving arrangement can drive piles both above and below water. It includes a housing containing a gas-filled motion chamber and an impact body movable upward and downward in the motion chamber. A cylinder-and-piston mover includes a cylinder par...
08/23/1977
3965992Internally silenced impact driven tools and impacting means therefor
Impact driven tools of the type generally comprising a bitter end bounded by a collar and a shank and a tip are provided with internal silencing means comprising an opening in the bitter end, said opening filled with a sound attenuating material, which is...
06/29/1976
3958647Powerful submersible deepwater pile driver powered by pressurized gas discharge
A very powerful pile driver is disclosed capable of operation in the air, partially submerged or totally submerged in the ocean for driving long piles into the ocean floor in deep water construction jobs. The pile driver includes a cylindrical housing, a ...
05/25/1976
3952813Percussive device for driving holes in soil
A percussive device comprising a housing with a pointed front end and a hammer piston accommodated in the housing to form a front working chamber therewith. The hammer piston is provided, in the rear portion thereof, with a cavity in permanent communicati...
04/27/1976
3935908Pile hammers
Power hammers for driving piling, and the like, free of any complex valve mechanism likely to require attention and comprising a working cylinder having an anvil at the lower end thereof and a ram operative as a piston in the cylinder, cooperative with th...
02/03/1976
 
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