Abstract: A flexible transparent door is provided for attachment to the entry opening of a helicopter or other vehicle. This door has a semi-permanent attachment effected by means of Velcro or any comparable hook and pile material distributed about the outer periphery of the door and secondarily held by means of accordion rivets. Hinges are also provided at this outer periphery for insertion into a slide mount permanently affixed to the helicopter. A zipper is provided spaced from the outer periphery and in circumferential relation to a clear vinyl window provided on the door. In normal use, the zipper is actuated to open the door for ingress and egress. In emergency situations, quick removal of the door from the body of the vehicle may be effected by separation of the Velcro and accordion rivets which bind the door to the vehicle. In this manner, the entire door will pivot upon the hinge provided and an emergency exit will be available.

Abstract: A separator for springs and similar parts has a housing provided with an opening for facilitating feeding of tangled springs into the housing. A striker assembly, in the form of a disc arranged opposite the opening in the housing and provided with one or more blades, imparts energy to the tangled springs. The inner surface of the housing has a plurality of protuberances, and the like, for promoting a spinning action of springs energized by the striker assembly. Free fall of tangled springs into the path of the striker blades sets up a natural vibration or oscillation of the tangled springs that, due to the contact angle along the radius of the spring wire, drives them apart. Further, the striker blades impart a rotating motion to the tangled springs in conjunction with the traction imparted to the springs by the protuberances on the inner surface of the housing when the springs come off the striker blades.

Abstract: A ring-type body is provided comprising a plurality of closed continuous convolutions of wire and one end portion of the wire, of an angular extent somewhat less than 360 degrees, includes a slightly greater radius of curvature whereby it is spaced outwardly of the adjacent convolutions. The end portion terminates in a smoothly curved back turned portion defining a U-shaped seat structure for embracingly receiving the free end portion of the plunger of a syringe structure immediately inwardly of the diametrically enlarged terminal end flange thereof, the flange of the syringe plunger being clamped between the U-shaped seat structure and the opposing outer surface portions of the adjacent convolutions. The entire ring-type body including the integral wire portion defining the aforementioned U-shaped seat is constructed from a single length of wire material.

Abstract: A base is provided and a rotor is journaled from the base for rotation about a first upstanding axis. The rotor includes a plurality of vanes journaled therefrom for rotation about second axis spaced about and radially outwardly from the first axis and vane displacement control structure is operatively connected between the base and the vanes for proportionally angularly displacing the vanes relative to the rotor 180.degree. in one direction during each 360.degree. of rotation of the rotor in the opposite direction. The vanes are angularly displaced in optimum positions relative to the rotor and each other to develop maximum thrust by the vanes on the rotor responsive to fluid flow against the vanes from a predetermined side of the first axis.

Abstract: A natural stone panel is constructed from rectangular sheets, slabs or blocks of natural stone, particularly marble or onyx and constructed by placing an array of rectangular stone blocks on a work surface, placing a fiberglass backing on the upper surface of the array, applying an adhesive, which can have a stone dust filler, to the joints between adjacent blocks, on the blocks and on the fiberglass backing, which is rolled into contact with the blocks. After hardening or curing of the adhesive, the exposed stone block surfaces can be polished, an overlay of clear plastic applied to the surface of the stone blocks, and the panel edges trimmed with a suitable cutting tool. The panels formed can be wall mounted by a suitable adhesive bonding the fiberglass backing to the wall surface, or alternatively, the panels can be adhesive bonded to a floor surface.

Abstract: A firebox is provided having an end panel, opposite side panels and top and bottom panels, one end of the firebox being open. The firebox includes depending support legs and an outer housing including opposite side and end walls and a top wall is telescoped downwardly over the firebox with the front wall thereof sealingly secured across the open end of the firebox and the other end wall, the top wall and opposite side walls spaced outwardly from the end panel, top panel and opposite side walls, respectively, of the firebox. The lower marginal edges of the opposite side and end walls of the housing are generally horizontally registered with the lower ends of the legs and the firebox includes a grate spaced above the bottom panel. A fuel door opening is provided in the front wall above the grate and a draft door opening is provided in the front wall below the grate and above the bottom panel.

Abstract: A roof mounted air conditioning system is disclosed for motor vehicle use, particularly for use with vans and recreational vehicles, comprising a preassembled unit which can be easily installed in any convenient location upon the roof of a motor vehicle. The air conditioning system comprises, preferably in preassembled form, a condenser and associated compressor precharged with refrigerant, an auxiliary internal combustion engine, and an evaporator, where the evaporator depends from a base plate mounted upon the vehicle roof. An alternator with regulator, as well as a starter motor and storage battery, are used in combination with the internal combustion engine. Fuel is supplied to the engine by a standard electric fuel supply pump connected with the vehicle fuel supply tank or a specially provided fuel tank when installed on a travel trailer. The roof mounted air conditioning system is encased in a protective, streamlined cowling.

Abstract: A variable mosaic pattern formed from interfitting blocks formed into standard shape is disclosed groups with curved or serpentine shapes. Interchangeability of the groups of the standard shapes permits easy installation, and production machinery presently available permits low cost manufacturing of the interchangeable components, which can be made of a suitable plastic molded from suitably shaped molds or stamped out on presses, cut from slabs of stone, or formed by other suitable means. The interchangeable components can be assembled indefinitely in any direction in an ever-changing mosaic pattern creating a random decorative effect.

Abstract: Lifter blades are mounted for rotation by a rotor assembly within a foraminous housing to centrifugally dry pellets impelled upwardly through the housing by the blades. Accumulation of pellets on the rotor is minimized by elimination of vertical entrapping surfaces in favor of spokes made of vertically positioned flat bars from which blade attachment arms extend at obtuse angles.

Abstract: A method is disclosed for producing a decorative and artistic effect on a flat surface, preferably a clear, flat surface, by brushing or spraying a colored coating material, such as paint thereon, placing a sheet of flexible film on the coated surface, pressing in place until the coating dries, and then removing the film to leave a decorative patterned coating. The resultant monoprint can be used as a room divider, lamp shade, window presenting the effect of stained glass, or for other purposes. When a clear, flat surface is used, the monoprint formed can be sprayed with a contrasting color and arranged to present the uncoated side for viewing in use. The flexible film can optionally be initially distorted by application of heat, creasing, or otherwise to produce variations in the decorative or artistic effect.

Abstract: A tapered plug gauge is disclosed for making graduated determinations of the inside diameter of a pipe, permitting rapid and effective determination of those pipe lengths which are oversize. The invention has particular utility for certain applications such as in the setting of oil field production casing. Pipe diameter is determined by insertion of a gauge into the pin end of a length of pipe, the outside diameter being noted by the depth of penetration, as indicated by a referenced circumscribed ring on the frustoconical surface of the device, the reference scribe being correlated by calculation assuming a pipe thickness which relates the measurement to the outside diameter to determine whether the pipe is oversize, and accordingly, the suitability of the particular pipe segment for use. The invention can be constructed in a plurality of sizes to correspond with pipe diameters and thicknesses standard in the petroleum industry.

Abstract: A wrap for flower pots for use by florists and the like having a central portion of metallic foil with a lace pattern edging extending from at least one of the edges of said foil and possibly from both edges. Normally, the lace pattern edging will be provided on a layer of plastic which is of greater dimension in at least one direction than the metallic foil to which it is adhered. The lace pattern may be printed or embossed upon the plastic material while the metallic foil material may be in various colors. The foil to film lamination may be embossed or creped. The wrap offers a quick and economical material for greatly increasing the appearance and attractiveness of conventional type flower pots.

Abstract: The device comprises modular parts with one module being an airtight casing shaped to approximate the shape of the limb needing circulation assistance. A pressure module may be attached to the end of the casing. This module includes a diaphragm which is operated by control circuitry responsive to a first sensor positioned to provide an indication of the entry of a blood pulse to the extremity. This sensor provides a timing pulse which activates a solenoid attached to the diaphragm. The timing pulse is passed through a variable time delay which time delay is controlled by a second sensor connected at a point on the extremity. The second sensor provides an indication of the amplitude of the blood pulse which passes through the extremity. The time delay period is varied to provide maximum amplitude of the pulse blood flow within the extremity. Furthermore, an exercise module may be connected to the casing in order to provide the patient with a means for actively stimulating his own blood circulation.

Abstract: The apparatus resurfaces the interior of a tubular pipe or other constant radius cylindrical structure by depositing a series of contiguous, coaxial weld beads on the surface of the structure. The apparatus comprises a chuck for holding and rotating the structure to be resurfaced while a weld head is positioned within a free end of the structure. Upon each 360 degree rotation of the structure, the weld head deposits a continuous circular bead on the structure surface and upon the completion of each bead, the head is moved a predetermined increment axially within the structure whereupon a further bead is drawn in a similar manner.

Abstract: Cloth, such as cotton, burlap, or canvas, has a photographic emulsion laminated thereto, along with an outer protective film. The composite laminate formed is permanent, and sufficiently firmly affixed to the cloth that the cloth is machine washable without substantial damage or alteration of the laminated image. The method of making the cloth laminated with photographic emulsion comprises applying the photographic emulsion facedown on a protective film, coating with adhesive and applying the cloth, drying the emulsion and cloth and pressing between plates, at least one of which is heated. By dipping the emulsion in a stripping solution prior to applying to the protective film, adherence and permanence of the laminate formed is substantially increased.

Abstract: A shower boot to be worn by a person when taking a shower for washing and scrubbing the feet. The shower boot includes a hollow body of waterproof material shaped to generally conform with and enclose the foot, ankle and lower leg region with the upper end thereof flaring or tapering outwardly to funnel water into the interior of the boot. A soft resilient lining is provided in the boot with the lining having a plurality of small projecting knobs, prongs or nipples engaging the exterior skin surface of the foot, ankle and lower leg regions of the person wearing the boot, whereby normal movement of such a person when taking a shower and towel drying will effectively wash, scrub and massage the foot and adjacent regions of the ankle and lower leg, thereby enabling such areas to be maintained in a clean and healthy condition.

Abstract: A device is disclosed which is designed to hold animals in a completely immobile state to enable total freedom of an operator to perform various operations on the animal, such as castration, innoculations, surgery, tattooing, or the like. The invention is particularly useful with pigs or other animals of comparable size, which can be transferred to the device of the present invention by a single person without injury to the animal. When used for immobilizing a pig, a flexible cone adjusted to approximate the size of the pig's head retains the animal's head as it is placed on its back in the device. A horizontal bar then slides down to apply firm pressure on the back legs of the pig, now securely immobilized for performing of veterinary operations.

Abstract: A system for injecting fluid into underground formations for various purposes including the secondary and tertiary recovery of oil or other hydrocarbons from underground formations, storage of fresh water in underground formations, recharging depleted or insufficient fresh water underground strata from rainfall run off or other sources of fresh water to provide fresh water supply during low rainfall periods or the like, disposal of brine or saline solutions into underground formations where such solutions will be purified by filtering through porous media and disposal of contaminated fluids resulting from industrial, chemical processes, and the like.

Abstract: A sun tracking solar energy boiler comprising a solar radiation collector and tracking assembly for collecting and focusing solar radiation upon a surface maintained precisely normal to its direction of incidence, in combination with boiler means comprising a preheat tank and steam pressure tank arrangement to maintain a predetermined water level in boiler tubes. The collector and tracking system is provided with means for tracking the sun in its hourly travel from sunrise to sunset, and means is provided for matching seasonal changes of the sun from the summer maximum height to the winter maximum dip with use of a completely automatic apparatus requiring a minimum of manual attention. Means are provided to prevent or remove any lens obscuration, and liquids other than water can be successfully used in the boiler means. Properly adjusted, the system is operable anywhere on earth with a latitude of 5 degrees or higher; special adaptation can be made for locations nearer the equator.

Abstract: A round trampoline having a sectional, substantially circular frame to which a circular mat is resiliently attached to the frame by a plurality of radially arranged springs. The mat comprises a pair of strips arranged perpendicularly to one another to form a reinforced center jumping area. The frame sections advantageously fit together in a double joint arrangement which affords great rigidity to the structure. .Iadd.The trampoline has sections forming the annular frame which are detachably connected to each other. At the ends of each section there is a portion of a generally U-shaped support member attached thereto and which extends downwardly below the frame rail. The portions of the generally U-shaped support that extend below the frame are detachably connectable with each other and secure the connection of the sections when joined with each other. .Iaddend.