Matches 1 - 50 out of 61 1 2 >


Match Document Document Title
8756719 Method and apparatus for an adaptive impact absorbing helmet system  
A method and apparatus for construction of a protective head covering, such as a helmet, to be worn by individuals engaged in activity that may, without the apparatus, cause concussive brain...
7089602 Multi-layered, impact absorbing, modular helmet  
An impact absorbing, modular helmet that prevents or reduces injury to the user and other parties in a collision is described. The helmet has layers on the outer side of the hard casing that...
6564976 Visco elastic displacement controller  
A deformable polymeric member is drawn or forced through or over a die at an imperceptible rate of travel whereby the visco elastic characteristics of the polymeric member delay and control the...
6216934 Festoon protection method and system  
A method and system for preventing damage to a movable dancer assembly in a festoon upon the breakage of the running web that runs through the festoon. During normal running of the web, the...
5588641 Gas spring which after compression has a time delayed return to its original length  
A gas spring apparatus includes first and second cylinders each closed at both ends by end walls, first and second pistons each capable of axial displacement being disposed inside a fluid-filled...
5076404 Time delay device for a gas spring  
The present invention relates to an arrangement for a gas spring (1). This comprises a cylinder (2) with a piston (3) capable of being displaced axially therein, which marks the boundary of an...
4693454 Air pressure shock absorber  
An air pressure shock absorber for smoothly stopping a moving object reciprocated by a rod in an air pressure cylinder. The shock absorber absorbs and reduces the internal pressure of a chamber in...
4550470 Combined rotary damper device including a stored energy mechanism and braking mechanism  
A rotary damper device comprises a base plate, a rotary cylinder rotatably disposed on the base plate through the medium of a damper, and a coil spring interconnecting the base plate and the...
4484846 Actuation of a cargo restrainer  
A spring-biased restraining member is retracted by means of a remotely positioned, manually operable lever being outside the cargo space; the linkage includes a hydraulic structure for delayedly...
4445671 Gas spring including hydraulic locking means  
A gas spring for height adjustment of drawing-tables or the like includes an arrangement for hydraulically locking the gas spring against sudden collapse due to overloading or loss of internal gas...
4342884 Piston unit  
A small-sized differential piston unit is disclosed. The piston unit has a cylinder filled with liquid medium and a piston slideably mounted in the cylinder. An operation rod is operatively...
4328754 Time delay device  
A time delay device adapted to cooperate with a firing device. The time delay device comprises a piston cooperating with the firing device, a spring to move the piston between a first position in...
4297544 Pneumatically operating delay switches  
A delay switch working pneumatically includes a piston and cylinder arrangement with the cylinder compartment being in communication with the outside air through a non-return valve and a throttle...
4256933 Switching device for preventing prolonged electrical contact  
A switching device for preventing prolonged depression-action type activation includes a housing and a depressible plunger mounted in the housing. This plunger includes an upper portion and a...
4164635 Wall switch timer  
The timer is adapted to be attached to a toggle light switch and comprises a body having a trip slide mounted in the body, with the slide having means for receiving and engaging the switch handle...
4019001 Pneumatic timer  
A pneumatic timer is constructed by stacking a calibration subassembly on top of a diaphragm housing stacked above a diaphragm subassembly, and including a filter capsule subassembly interposed...
3954245 Vehicle seat and support assembly therefor  
A vehicle seat support assembly including a fluid spring that supports an upper seat base on a lower floor base at a vertical height corresponding to the adjusted position of an adjustable control...
3934865 Underwater timer and release device  
An underwater timer and release device comprising a cylindrical housing sealed at its opposite ends and adapted to receive a slidable spring-loaded piston therein. The piston includes a metering...
3912247 Pneumatic retard having stroke-accelerating valve  
A pneumatic retard, of the type used to achieve time-delayed actuation of water-flow alarms or other devices, has a pneumatic chamber from which air is slowly discharged under the pressure applied...
3872511 Protective headgear  
An impact absorbing covering for protective headgear including a hard shell of one or two material thicknesses and having on its inside surface for contact with the protective headgear, a...
3871044 UNDERWATER TIMER AND RELEASE DEVICE  
An underwater timer and release device comprising a cylindrical housing sealed at its opposite ends and adapted to receive a slidable spring-loaded piston therein. The piston includes a metering...
3782709 PULSE DAMPENER  
A pulse dampener particularly advantageous for removing cyclical pressure gradients produced by the positive displacement pump in a liquid chromatographic system. It comprises a bellows which...
3773311 OVERHEAD DOOR CONTROL DEVICE  
A control device for overhead doors, pivoted about a horizontal axis at or near their upper ends, the control supplementing the closing force to produce an essentially constant closing force, this...
3750389 LIQUID ANNULAR ORIFICE DASHPOT TIMER WITH INTERTIAL EFFECTS  
The dashpot of this invention includes the substantially cylindrical cylinder in which travels a piston having a diameter slightly less than that of the interior of the cylinder. A liquid or...
3625401 PUMP FOR BLOOD PLASMA AND THE LIKE  
A pump for plasma and the like is provided suitable for use with but not confined to available plasma containers and with the rate of discharge maintained constant but adjustable over a wide...
3589655 APPARATUS FOR ISOLATING VIBRATIONS  
A vibration isolation system of the type that includes a load-supporting means isolated from a base means by a resilient air chamber means that is controlled at constant level by a novel air...
3563023 LIQUID ANNULAR ORIFICE DASHPOT TIMER  
3563024 SHARP EDGE ORIFICE DASHPOT TIMER  
3551615 PNEUMATIC TIME DELAY SWITCH WITH IMPROVED DASHPOT STRUCTURE  
3540208 HYDRAULIC WATCH  
3484090 HYDRAULIC FLUID DELAYED ACTION TOGGLE SWITCH ACTUATOR  
3425679 PNEUMATIC TIME DELAY DEVICE  
3389900 Timing system  
3282582 Timing device  
3182564 Motors  
3179396 Time-delay actuator for toggle switches  
3155381 Reading pacer  
3086623 Pneumatic timer  
3081845 Three-way adjustable timing device  
3059269 Door closers  
3057003 Door closer  
3042957 Door closer  
3040842 Pneumatic time delay device  
3025558 Hydraulic door control device  
2991992 Time delay device  
2981533 Time delay apparatus  
2961233 Time delay mechanism  
2953122 Hydraulic check for air drilling units  
2944281 Balanced door construction  
2941513 Speed control for oscillating hydraulic motors  

Matches 1 - 50 out of 61 1 2 >