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Patent No. 6745394

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 209/488 - Feeding and discharging


Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Elements or structures which are employed both in feeding
No. of patents: 17
Last issue date: 03/04/2003


NumberTitleIssue Date
6527125Washing liquid distribution system
A system for delivering the same or differing controllable amounts of washing liquid to several flights of a spiral separator including a housing, a plurality of spaced members having a respective generally vertical passage communicating with fluid in the...
03/04/2003
6439394Separator for dry separation of powders
A system for dry separation of powders into at least two fractions including a powder to be separated and a separator including a hollow body rotating about an axis and defining a cavity having a powder engaging surface, the surface of the cavity being a ...
08/27/2002
5927509Gold separation kit
A self-contained gold separation kit adapted for easy carrying using a shoulder strap uses a single-spring rocker assembly for agitation of stream bed materials for separation of gold. The main kit elements include a sluice box, material tower and collect...
07/27/1999
5087351Fluidized bed peanut sorter
A modified fluidized bed separates materials differing in weight by as little as one percent. A fluidized bed is formed by directing air through vanes on an underside of a screen. Products, such as peanuts, delivered to a central portion of the screen are...
02/11/1992
5048693Method and apparatus for sorting articles with small density differences utilizing a flotation stream
A method and apparatus for sorting articles with small density differences utilizing a flotation stream. A separator is provided in which a flotation stream continuously flows through a trough and is used to effect the separation of a mixture of articles ...
09/17/1991
4981587Sieve with adjustable throat mechanism discharge
A sieve bend has been described incorporating a headbox 40, throat mechanism 46, nip flap 90 and sieve surface area 52 supported by frame 96 which may have portions thereof rotated or positioned behind headbox 40 temporarily until its use is desired. The ...
01/01/1991
4851111Apparatus for screening paper fiber stock
In screening apparatus for paper fiber stock of the type wherein a cylindrical perforate screen member defines screening and accepts chambers on the inner and outer sides thereof in a closed, pressurized housing, the inlet chamber for stock to be screened...
07/25/1989
4842146Pulsator for enriching, particularly hard coal
A pulsator for enriching, particularly, hard coal has mounted in a pulsating compartment a hoisting wheel and a bracket both mounted on a drive shaft, or a ratchet wheel mounted on a drive shaft which runs in bearings above the liquid level of a working t...
06/27/1989
4839034Beneficiator for recovery of metal fractions from particulate gangue
Apparatus is provided to separate heavier metal particles from lighter particles gangue in a fluidic medium by gravity and fluid flow. A vertical container provides a lower fluid input chamber that communicates through a medial structure providing a plate...
06/13/1989
4772384Jigging method and apparatus for gravity separation in the fine and finest particle size ranges
In jigging for purposes of gravity separation of material to be concentrated the material is sorted into a heavy fraction which is withdrawn through a screen (2) and a light fraction withdrawn above the screen (2), by periodically passing flows from the b...
09/20/1988
4663031Percussion jig
The invention relates to a percussion jig in which the chutes for receiving and discharging the material to be separated are each divided into a plurality of individual chute segments arranged spaced from one another so that the spaces between adjacent in...
05/05/1987
4461700Rotary feeder
A rotary feeder for simultaneous screening and discharging of material from the bottom part of a fluidized bed reactor. The rotary feeder is provided with a rotor having blades, between which pockets are formed. In the rotary feeder there is disposed an a...
07/24/1984
4289610Apparatus for pumping and conditioning drilling fluid
The invention relates to an apparatus for pumping and conditioning a drilling fluid normally utilized in the drilling, completion or workover of a subterranean oil or gas well. The apparatus includes a rotor housing encasing a rotatably supported rotor as...
09/15/1981
4267037Apparatus for separating waste material contained in a heap
An apparatus and method for separating waste material contained in a heap in at least one separating zone, the heap largely comprising particles of the same shape, size and density, from which the waste particles differ. It also relates to apparatus for p...
05/12/1981
4252642Wet-type rotary sand classifier
A wet-type rotary sand classifier of this invention is provided with a plurality of helicoid blades which are secured onto the inner surface of the rotary drum along the entire length of the drum with their respective rear ends terminating at the rear end...
02/24/1981
3951787Method and apparatus for separating gold and other heavy materials from ore
Apparatus and method for separating heavy materials from ore, the apparatus having a hopper or sluice box open at its top and defining a discharge opening on one side. Spaced, parallel pipes extend across the hopper adjacent, but above, the bottom of the ...
04/20/1976
3950246Dredge units
A dredge unit having a buoyant support carrying a sluice box suspended beneath, a water suction system connected to an outlet end on the box and a suction hose operatively connected to an inlet end thereof. The water suction system operates to draw water ...
04/13/1976
 
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