Abstract: A device for tattooing an animal such as a rodent includes a tweezers-shaped body having resilient arms with free ends, which can be squeezed together and when released will return to a spaced apart, rest position. A needle carried by the free end of one arm is aligned with a hole in the free end of the other arm, so that when an area of animal, e.g. a rodent toe, is placed between the fee ends and the arms are pressed together, the needle penetrates the animal to deposit ink beneath the skin of the animal.

Abstract: A hair root collection kit for delivering hair samples to a laboratory for DNA analysis of the root sheaths includes a card with an adhesive strip extending thereacross for holding the hair samples on the card. With the hair samples on the card, the root sheaths overlie a non-adhesive impermeable plastic area. The card is covered by a clear plastic cover for protecting the hair during delivery to the laboratory.

Abstract: A polysulfone-zeolite composite membrane can be used to separate gas pairs such as hydrogen/carbon dioxide. Zeolite, preferably zeolite 3A particles are covalently bonded to the polymer using an aminofunctional methoxysilane as a coupling agent to bind the zeolite particles to an aldehyde modified polysulfone matrix.

Abstract: A drilling apparatus includes a platform for positioning at a drilling site) a mast pivotally mounted on the platform) a rod clamp on one end of the mast for clamping a drill rod) a drill head slidably mounted on the mast for driving the drill rod during a drilling operation, a main ram connected to said mast and said drill head for moving the drill head longitudinally of the mast) a casing clamp on the rod clamp for clamping the mast to a top end of a casing carrying the rod) whereby the mast is anchored to the ground during drilling) and a drill head slidable on the mast for driving the drill rod during drilling.

Abstract: The invention disclosed relates to a method and apparatus for the denitrification of groundwater in situ in an aquifer under substantially anaerobic conditions, the method comprising (a) providing a network, including an extraction well for removal of groundwater from the aquifer and a plurality of injection wells for returning groundwater to the aquifer, the injection wells being arranged in a line substantially perpendicular to the direction of groundwater flow, the extraction well being located downstream or upstream of the line of injection wells, and the spacing of the wells and the number of injection wells being determined by the mathematical relationship J = C p + nC 1 W → min

Abstract: A relatively simple tree stand includes a generally rectangular platform with locking arms at one end thereof; teeth pivotally connected to the arms for gripping a tree trunk; a pair of support arms pivotally connected to the sides of the platform near a second end thereof, a generally V-shaped end wall pivotally connected to free ends of the tubular support arms; a catch for releasably retaining the end wall in a vertical, erect position; a belt retained by latches in the support arms for forming a first loop around a tree trunk, and a cord for forming a second loop around the trunk beneath the first loop.

Abstract: Mussels are commonly grown on ropes which have been seeded with immature molluscs. Past techniques for farming mussels have suffered from low product yields because of the low surface area of a mussel rope, and mussel detachment from the rope. Existing devices for solving these problems are cumbersome and difficult to use. The present invention solves the problems by providing a mussel farming device including a planar body with a slot in one side thereof for receiving a rope or mesh bag, an aperture at the center of the body, and a clip in the aperture for attaching the body to the rope or bag. A plurality of such devices are attached to a rope or bag at intervals along its length, thereby providing a large surface area for mussel attachment and creating stable platforms on which the mussels can mature.

Abstract: A vibration control apparatus designed specifically for use on space vehicles includes a stator for mounting in the vehicle, a lower flotor, magnetically levitated on the stator, an upper flotor nested in and magnetically levitated on the lower flotor, and position, orientation and motion sensors carried by the stator and flotors. When any changes in position, orientation or movement, i.e. vibration of apparatus is detected, magnetic force actuators are energized to compensate for such changes to keep a work platform on the upper flotor virtually vibration-free. Moreover, controlled and induced vibration of the work platform and an experiment carried thereby can be effected using the lower flotor as a reaction mass, i.e. without feedback to the vehicle.

Abstract: A machine for producing a corrugated wheel spacer for use between tandem truck wheels includes top and bottom corrugated rollers which are driven in synchronism with an annular spacer blank therebetween to corrugate the blank. The top roller is suspended from a carriage for vertical movement towards and away from the bottom roller so that an annular blank can be placed on the bottom roller when the rollers are spaced apart and the rollers can be moved together to effect a corrugating operation.

Abstract: A magnetic table game includes a table having a smooth top playing surface, a goal at each end of the table, a projectile defined by a plastic ring carrying a freely rotatable steel ball bearing, and a pair of plastic sticks containing a magnet in their blade ends for insertion beneath the table to move the projectile along the playing surface.

Abstract: A relatively simple toe jack includes a base; a cylinder mounted on the base and carrying a plunger; a load carrying sleeve mounted on the plunger; a load saddle and a load engaging toe on the sleeve; and a two-stage pump carrying a reservoir mounted on the base beside the cylinder, the pump including a handle specifically shaped to fit into a lever which operates the piston of the pump. The plunger is returned to a rest position by a spring mounted in the plunger and connected to the bottom of the cylinder.

Abstract: A crystal clear, transparent insect repellent in gel form contains N,N-diethyl-m-toluamide (DEET), water, a lower alcohol, preferably ethanol, carboxypolymethylene as a gelling agent, triethanolamine for neutralizing the gelling agent, methyl and propyl paraben, a perfume for masking the odor of the DEET, and a polysorbate, preferably polyoxyethylene (20) sorbitan monolaurate for improving the texture of the gel.

Abstract: The invention disclosed relates to a method and apparatus for separating a mixture containing an aqueous liquid and an immiscible organic phase using microporous hollow fibers. Such mixtures are separated into a substantially organic-free aqueous phase and a substantially aqueous-free organic phase. The mixture is pressurized in a controlled low shear manner to minimize emulsification as it is contacted with the fibers. Productivity is enhanced by separating as a third product stream, a further organic phase containing only small amounts of an aqueous phase, which for some applications can usefully be combined with the substantially aqueous-free organic phase. Other ways for enhancing productivity are also disclosed.