There is disclosing a novel dynamic seal for a projectile having an inter chamber for cylindrical canisters of discrete liquids wherein a circumferential gap is formed between adjacent canisters in said chamber. The seal comprises a ring member which is formed of an elastomeric material and possesses an annular chamber containing a deformable substance of relatively high density. The ring member is juxtaposed about said circumferential gap so that by the centrifugal force of the spinning project...

A method and apparatus for altering the normal blade geometry of a wet shaving razor in response to aggressive shaving forces, thereby avoiding nicks and cuts that would otherwise occur.

A dynamic damper of this invention comprises: a pair of ring-shaped fixing members disposed at a predetermined interval, inserted onto and supported by a rotary shaft; a cylinder-shaped mass member having inner surface larger than the outer surface of the rotary shaft, the cylinder-shaped mass member inserted onto the rotary shaft and disposed between the pair of ring-shaped fixing members; and elastic members integrally connecting the ends of the fixing members with the ends of the cylinder-sha...

A dynamic splint which braces any joint and particularly any body joint, and is capable of cyclically moving the joint through a programmable range of motion while accommodating normal joint component motion and triplant motion. In a preferred embodiment, an extendable cable with a cable sleeve mounted on one limb and a rotatable inner threaded cable threaded through a threaded mounting bracket on the other limb extends and contacts to cause flexing and extension of the joint.

Disclosed are dynamic dampers for suppressing harmful vibrations excited in a rotary shaft which enable to complete the installation thereof around the rotary shaft by only fixing one end thereof on the rotary shaft without imparing the performances thereof. One of the dynamic dampers are provided with elastic members disposed at both ends thereof, only one of the elastic members has an engaging groove going round the outer surface thereof, and the inner diameter of one of the elastic members is...

A dynamic damper to be mounted on a rotary shaft, such as the drive shaft or a propeller shaft of an automobile, to damp detrimental vibrations generated as the rotary shaft rotates. The dynamic damper is of a sectional type comprising a first end unit, a second end unit and a mass member. The first and second end units are mounted on the rotary shaft opposite to each other, and the mass member is joined fixedly at its opposite ends to the first and second end units. Each of the first and second...

A dynamic sling provides a patient with therapeutic movement including joint approximation and proprioceptive input for an affected extremity joint, such as an arm and shoulder joint. The dynamic sling includes a first cuff for attachment to a patient's non-affected arm adjacent, or spaced from the shoulder along the humerus between the elbow joint and the shoulder joint. A second cuff is provided for attachment to the patient's affected arm adjacent the affected joint or spaced from the joint a...

The invention provides a new production scheduling system. The system includes a technique that utilizes a knowledge base system to dynamically schedule production of parts on a plurality of manufacturing machines. The schedule is updated dynamically to conserve synergism with the changing plant environment. The schedule is created to conform with predefined rules to conserve constraints imposed by the machinery to create parts of different specifications. The rules may be hard in that they may ...

A low noise resonant filter of wide dynamic range and low distortion is formed from a number of series-connected filter stages, each comprising a current integrating amplifier driven from transconductance formed from a bipolar differential pair with feedback to one member of the transconductance pair to maintain its transconductance substantially constant. A further bipolar differential pair transconductance at the input stage operates with a widely variable transconductance and provides soft li...

A dynamic circuit that prevents a malfunction, even when the operating temperature is high, including a pre-charging circuit connected between a power source node and a signal wiring, a plurality of discharging circuits being connected between a power source node and a signal wiring, a plurality f discharging circuit connected between the signal wiring and a ground potential respectively and for being selectively turn-ON/OFF controlled, a leakage current detecting circuit for detecting a current...