Abstract: A portable horizontal drill press for drilling holes in the surfaces of highway vehicles and construction type equipment including a T-shaped base support beam which is mounted on swivel type wheels with low clearance provided to minimize tipping. A drill support column having a slidable mounting platform for an industrial type drill motor is mounted at one end of the beam support structure. The drill motor platform includes a hand wheel and lead screw combination which is used for feeding the drill motor into the work. The height of the drill motor platform can be adjusted either by a rack and pinion gear provided on a one-piece solid column or the column can be provided in several telescoping sections which can also combine a rack and pinion gear for the upper section of the column. A similar height elevating and positioning arrangement can be provided for a center support column provided at the opposite end of the base support beam.

Abstract: An antenatal shunt is provided for implantation in utero to drain blocked fluid cavities within a fetus. The shunt includes a proximal catheter having one or more expandable wing anchors strategically positioned on the catheter, a distal tube having an additional anchor and a retracting tab provided at the free end of the distal tube. A check-valve may be provided in the catheter to allow fluid to flow in only one direction through the shunt. The shunt is sized and arranged to be implanted by means of a hollow surgical needle into the fetus by the use of ultrasonography as a guidance aid. Suitable apertures are provided in the proximal and distal free ends of the shunt to allow the flow of fluid from the fluid cavity in the fetus to the amniotic sac. Expandable anchors are included which are capable of being folded for insertion and movement through the needle during implantation. The arms expand upon release from the needle to provide a secure anchoring arrangement.

Abstract: A hydraulic weeding apparatus consisting of an elongated hollow tubular shaft being attached to a hand grip type body having a coupling for attaching the device to a source of pressurized fluid such as a common garden hose. A positionally adjustable, hook-type gripping device is spaced from the open end of said tube and is arranged with an outwardly extending free end which is arranged to encircle and grip the base of a weed root when the shaft is rotated. A splash shield is positioned above the gripping device to prevent the fluid from flowing upwardly along the shaft so as to protect the user. A valve can be provided in the body of the device for controlling the flow of fluid through the tubular shaft whereby the open end of the shaft can be inserted adjacent to the root of a weed to a depth where the gripping device can attach to the loose weed so as to easily remove it.

Abstract: A quick coupling apparatus is provided for interchanging any number of vehicle body units on a single vehicle chassis when each of the body units and the chassis has a pair of parallel longitudinal standardly spaced beams whereby the beams of the body unit will overlie and be supported by the chassis beams when the components are coupled. The coupling apparatus has a plurality of hook-type tabs spacedly positioned on the sides of the body beams and a corresponding number of coupling brackets mounted on the sides of the chassis beams. Each of the coupling brackets being capable of receiving a tab and securing the body unit to the chassis when the body is moved slightly in a longitudinal coupling direction. At least one of the coupling brackets having an enclosing outer plate which forms a retaining slot which can receive a wedge behind the tab for locking the tab and body in position with respect to the chassis.

Abstract: An improved, selective, radiation sensing device is provided which includes a thin strip of pyroelectric material. One side of the material is coated with a continuous layer of metallic material to form an electrode while the opposite side is coated with at least a pair of electrodes and the output of the electrodes are electrically connected to a differential amplifier. A layer of energy filter material is applied over the continuous electrode. This layer is transparent to all energy outside of a desired energy frequency band to which the device is to be sensitive but absorbs and converts to heat all energy applied which is within this band. This heat is conducted quickly into the pyroelectric material which produces a voltage change in the output from the corresponding electrodes.

Abstract: An improved electrostatic precipitator for removing high resistivity particles from a gas stream. The precipitator includes a charger section having a plurality of corona electrodes and hollow tubular collector electrodes. These electrodes are arranged in parallel, alternating arrangement in a single plane which is positioned perpendicular to the gas flow. The electrodes are connected to a high voltage electrical source while produces a thin high current electrical field which electrically charges the particles present. A temperature control fluid is passed through the collector electrodes to control the temperature of the particles collected so as to maintain the resistivity of the particles in a range in which back ionization will not occur. Due to the size and geometry of the charger section and the temperature control of the particle layer, an extremely high voltage, high current electrical field can be maintained. A collector section can be provided spaced downstream from the charging section.

Abstract: An edge seal for a solar collector type flexible film material is provided for forming a generally air-tight heat insulating reusable seal around the edge of an opening in the surface of a building structure. The edge seal is formed around the film material which is sized to cover the window opening and overlap the edges of the opening. A band of magnetically permeable particles is adhered along the edge of the substrate forming the film material by a suitable adhesive. A strip of magnetic material is adhered around the edge of the opening. The permeable particles are attracted to the magnetic strip to form an effective air-tight seal between the flexible film material and the opening to essentially form a dead air space between the flexible material and the window opening. The flexible film material can be mounted similar to a window shade adjacent to the upper edge of the opening.

Abstract: An improved, selective, radiation sensing device is provided which includes a thin strip of pyroelectric material. One side of the material is coated with a continuous layer of metallic material to form an electrode while the opposite side is coated with at least a pair of electrodes and the output of the electrodes are electrically connected to a differential amplifier. A layer of energy filter material is applied over the continuous electrode. This layer is transparent to all energy outside of a desired energy frequency band to which the device is to be sensitive but absorbs and converts to heat all energy applied which is within this band. This heat is conducted quickly into the pyroelectric material which produces a voltage change in the output from the corresponding electrodes.

Abstract: An anti-theft device to prevent the unauthorized removal of a mounted, flanged object comprising a cover overlying the mounting flanges of the object, a securing device for attaching the cover to the surface upon which the flanged object is mounted and a locking device for preventing removal of the cover from the securing device. The invention is particularly useful in remote oil field and other field uses to prevent theft of industrial machine accessories such as starters, generators, and batteries.

Abstract: A combustion detection apparatus and method is provided for generating an alarm output when either a first alarm condition or a second alarm condition is present. A first alarm output is generated when a first predetermined concentration of combustion products is continuously present in a region being monitored for a preestablished period of time. A second alarm output is immediately generated when a second predetermined concentration of combustion products is present in the region being monitored. The second predetermined concentration of combustion products represents a relatively greater concentration of combustion products than the first predetermined concentration.

Abstract: A self-contained, electrically-isolated patient call device is provided which permits use by quadriplegic or partially paralyzed patients which includes an extremely sensitive, adjustable, non-sealed, pneumatic, pressure transducer activated by the patient which in turn produces a simultaneous movement of an actuation transducer which actuates an electronic circuit. The switch and electronic circuit can produce both an audible alarm signal and activation of electrical contacts to simultaneously operate a nurse call system. The transducer activated by the patient can be actuated by a minor flexation of a muscle or skin area or can be the result of air pressure created by the breath or blowing against the transducer. This device permits electrical isolation of the patient to prevent shock and allows pneumatic activation of the system mounted directly on or close to the patient to eliminate the necessity for extended movement or positional adjustments which are usually impossible for the patient.

Abstract: A rake for raising and combing the pile of a rug, carpet or the like having a head and an elongated handle attached thereto. The head has a plurality of prongs arranged along an edge opposite said handle in at least two spaced, parallel rows with the individual prongs for each row arranged in alternating fashion. The head of the rake and the prongs are formed in a unitary, one-piece molded construction. The cantilever, double row arrangement of the prongs allows the downward force of the prongs to be essentially equal with the first row of prongs providing a raising effect on the pile with the following row combing the pile. The cross-section of the prongs is curved in a convexo-concave configuration which blends into the head to provide reinforcing and additional strength in the prongs.

Abstract: A poultry cage for accomodating most species of domesticated birds from the day of hatching to maturity having a generally rectangular, rigid, open frame structure with the sides, top and floor covered with an open mesh material. The mesh on the top surface has smaller openings than the rest to catch and retain the manure from any above cages and allow it to quickly air dry due to natural ventilation. The floor of the cage is hinged along the rear edge and includes a positional catch at each front corner to allow the floor to be held in various positions or opened and removed completely. A portion of the cage floor spaced from the front and hinged parallel to the front edge is provided to pivot upwardly so as to lean against the cage front to trap the young birds in the front portion of the cage keeping them near the source of feed and water. A portion of the cage top is hinged to permit placing or removing birds from the cage.

Abstract: A cage front for use in poultry cages for the rearing of fowl from their first day to market age having a plurality of bifurcated bars mounted in vertical, adjacent positions to form the cage front. The bars are equally spaced horizontally and are aligned to form a symmetrical pattern of openings. Each bar has a straight stem section with a pair of downwardly extending legs which have a sinuous or curved configuration. This configuration forms a plurality of alternating vertical openings and constrictions between the legs and bars, with the widest vertical openings in the area of the upper stem sections. In an alternate configuration, the width of the legs are increased toward their ends so that the openings are tapered and decrease in width towards the floor of the cage. The series of vertical openings thus allow poultry of various sizes or species to extend their head through the cage front without restricting the raising of the head during the feeding and watering process.

Abstract: An egg layer system for the production of poultry eggs which includes a plurality of tiered, open mesh wire cages arranged back-to-back and mounted in a plurality of rows extending the length of an elongated, rectangular building enclosure. The cage rows are arranged so as to form equally spaced aisles between facing cages. At the base of the cage rows is a parallel track assembly provided to permit a servicing carriage to be moved along the individual aisles. An open, transverse aisle is provided at each end of the cage rows which include guide means for directing the service carriage from one aisle into the next aisle for forming a continuous, closed-circuit path for the movement of the carriages along each of the cage rows of the entire system. No feed or water troughs are provided in the cages with the feed and water provisions included in the service carriages.