Abstract: A light weight, one piece molded cot which has a contoured sleeping surface with four downward extending walls for supporting the sleeping surface above the floor. The bottom edges of the side walls flange outward and trap air below the cot.

Abstract: A light weight, two piece cot comprising first and second rectangular shaped molded members which form a contoured surface for supporting a person when fitted together. Each member has two sides and two ends and an upward facing surface with a ridge formed around said surface along two sides and one end. The first member is elongated having four walls along its two sides and two ends respectively for supporting its upward facing surface and the second member has three walls along its two sides and along said one end respectively for supporting its upward facing surface. The ridge free end of the second member is supportable by the ridge free end of the first member.

Abstract: This specification discloses method and apparatus for treating subsurface layers of the earth to build strength of the subsurface layers and control movement of the subsurface water characterized by slaking quicklime (CaO) in a mixing tank to form an elevated temperature, hydrated lime [Ca (OH).sub.2 ] slurry and injecting the resulting elevated temperature lime slurry at a predetermined plurality of spaced apart locations and at predetermined depths into the earth subsurface layers. This achieves a cost reduction, has greater reliability in obtaining materials, achieves better results, saves energy and extends the injection-stabilization season into cold weather previously considered prohibitive. Also disclosed are the details of preferred embodiments for admixing the unslaked lime for the various uses.

Abstract: An improvement in a heating and air conditioning system for a mobile home or the like including a system of air ducts for distributing the air within the mobile home, a heating unit, a cooling unit; and characterized by a plenum chamber that includes respective connected hot and cold air inlet apertures and valve seats, and at least one outlet opening connected with the air ducts; and a large hollow lightweight poppet disposed intermediate the hot and cold air valve seats. The large hollow poppet is moveable responsive to respective directions of air flow to and away from the hot and cold air valve seats so as to permit flow from one of the heating and cooling units and to block reverse flow into the other. Also provided are guide means for freely and accurately guiding the hollow poppet between its respective seating engagement positions.

Abstract: A method and composition for controlling odor emission from toilet holding tanks for prolonged intervals of at least 48 hours consisting essentially of adding to the toilet holding tank an effective amount of an additive composition consisting essentially of a quaternary compound selected from the class consisting of alkyl dimethyl benzyl ammonium chloride and alkyl diethyl benzyl ammonium chloride where the alkyl group contains 12-18 carbon atoms, inclusive; formaldehyde; and an acid buffer sufficient to buffer the composition in the toilet system to a pH in the range of 4-5. The effective amount is that which is sufficient to maintain a concentration of at least 100 parts per million of the additive composition throughout the prolonged interval.

Abstract: This specification discloses an improvement in a solar system having one or more collectors for receiving and using radiant energy from the sun and at least one and preferably a plurality of respective reflector means for reflecting the radiant energy onto the collectors. The improvement is characterized by having each reflector in the form of a heliostat that can be moved to maximize the radiant energy reflected onto its collector, driving motor for so moving each heliostat; firmly anchored support structure carrying each heliostat; and sensor connected by suitable controls with each drive motor for so moving each heliostat; the respective sensor being mounted on the same support structure as the heliostat and aligned in a straight line from the heliostat to its collector. With this construction, the sensor does not require an expensive and firmly anchored separate support structure to prevent receiving small surface movements different from those received by the heliostat.

Abstract: An improved air conditioning system of the type wherein a conditioned fluid is conveyed from a central plant to a remote location where the fluid exchanges heat prior to being returned to the central plant for reconditioning. The system is provided with storage means for the fluid at the central plant and the remote location with a single conduit extending therebetween. Nonsimultaneously, pumps convey fluid through the single conduit from the central plant to the remote location and from the remote location to the central plant. In one embodiment, phase change may be employed to augment heat exchange capability at the remote location, or satellite.

Abstract: An improved method and combination facilitating interchanging attachments on an adaptable off-road vehicle characterized by, in addition to the usual vehicle and its controls, prime mover, power source, drive apparatus, steering apparatus and the like, a first portion of attachment apparatus carried by the vehicle including a plurality of mounting stations on respective front pair of elongate substantially horizontal tracks and front and rear pairs of vertical tracks; the tracks being spaced apart a first predetermined distance; each mounting station having a plurality of apertures that are laterally aligned for even mounting of the attachments; a plurality of attachments, each having respective second portion of attachment apparatus, each second portion including a pair of track engaging clevises laterally spaced apart the first predetermined distance and having a plurality of apertures adapted to align with the apertures at the mounting stations; a plurality of pins for inserting through the aligned apertur

Abstract: An improved apparatus for indicating that an acceleration greater than a predetermined acceleration has occured; the apparatus being of the type having a liquid reservoir and an adjacent gas region; the liquid-gas surface resisting deformation due to surface tension. The liquid, gas and surrounding structure are chosen such that the surface tension prevents a rupture of the liquid-gas barrier until an acceleration greater than a predetermined acceleration occurs; at which time at least a portion of the liquid enters the region of the gas. Electrical contacts within the gas region are bridged by the liquid, which liquid is electrically conducting. Means are provided to conduct electricity to and from the contacts such that communication of the forming of the bridge is possible.

Abstract: What is disclosed is a heat exchanger-accumulator for vaporizing a refrigerant or the like, characterized by an upright pressure vessel having a top, bottom and side walls; an inlet conduit eccentrically and sealingly penetrating through the top; a tubular overflow chamber disposed within the vessel and sealingly connected with the bottom so as to define an annular outer volumetric chamber for receiving refrigerant; a heat transfer coil disposed in the outer volumetric chamber for vaporizing the liquid refrigerant that accumulates there; the heat transfer coil defining a passageway for circulating an externally supplied heat exchange fluid; transferring heat efficiently from the fluid; and freely allowing vaporized refrigerant to escape upwardly from the liquid refrigerant; and a refrigerant discharge conduit penetrating sealingly through the top and traversing substantially the length of the pressurized vessel downwardly and upwardly such that its inlet is near the top of the pressurized vessel so as to prov

Abstract: The bracket comprises two support members adapted to be secured to a wall or the like at spaced apart positions and two shaft means, each adapted to be removably coupled to one of the support members for supporting a roll of material for rotation between the two support members. Each support member comprises a body having a slot formed therein from one side to an opposite side. Each shaft means comprises a shaft portion adapted to be inserted into the axial opening at one end of the roll of material and a coupling portion having a slot formed therein from one side to an opposite side. A portion of the coupling portion of each shaft means is adapted to be removably received in the slot of one of the support members and a portion of the body of the corresponding support member is adapted to be removably received in the slot of the coupling portion of the shaft means whereby the shaft means may be removably interlocked with the support member.

Abstract: This specification discloses an off-road type vehicle employing an improved hydrostatic drive system having a variable displacement pump having an actuating member for varying displacement in at least one direction, wheel motors representing actuatable devices operable by fluid from the pump, hydraulic reservoir, serially interconnecting supply and return lines and an improvement comprising an over control compensation that includes high pressure relief valves on the high pressure supply lines; a neutralizing means for moving the actuating member back toward its neutral position responsive to hydraulic pressure released by the relief valves, and a bleed-off means connected with the neutralizing means and adapted to bleed-off high pressure hydraulic fluid to allow restoring operation and a bleed-off return for returning the bleed-off hydraulic fluid to the reservoir.

Abstract: A receptacle having an open ended cavity for receiving a toothbrush and a sponge carrying a sterilizing fluid for sterilizing the toothbrush. Two removable caps are provided for closing opposite ends of the receptacle. The toothbrush when located in the cavity of the receptacle has a portion extending beyond one end of the receptacle. The cap employed for closing this end of the receptacle has a cavity for receiving the extending end of the toothbrush.

Abstract: Guard apparatus for a window or the like in a building characterized by a guard element that is hingedly mounted to a wall adjacent the window and adapted to prevent entry into the window from the exterior and having a releasable fastener that is releasable interiorly of the building without tools to allow emergency egress through the window but resists force exteriorly of the building. The releasable fastener has a lock housing that is inaccessible from outside the building when the lock bar on the guard element is inserted into its normal latched position. Also disclosed are specific structural details and preferred embodiments of the releasable fastener.

Abstract: This specification discloses a jack capable of raising an object from ground level height to a predetermined height characterized by a superstructure that includes a base and a strong member above the base and connected thereto, the strong member having the plurality of stations at predetermined heights therealong; a lift bar for lifting the superstructure and the attached object; top fastener for fastening the lifting bar so as to prevent movement upwardly past the predetermined station on the superstructure; connecting means for connecting the superstructure with the object; extensible leg having a plurality of stations therealong and being slidably disposed in an aperture through the base; bottom fastener for fastening the base along the leg at a predetermined station to prevent downward movement past the station; a jacking means for raising the object by forcing the extensible leg and the lift bar apart so that by one or more cycles the object can be raised at a predetermined height by the jack.

Abstract: An incinerator urinal having an annular catalyst chamber for holding heat activated catalyst particles for removing odor from the gases during incineration and an upper reservoir chamber for supplying heat activated catalyst particles to the annular chamber as the particles therein erode due to the effects of heating and cooling upon repeated use of the heater of the urinal. A sleeve extends through the upper chamber and a removable drain tube extends from the outlet of the upper bowl of the urinal through the sleeve for allowing the flow of liquid effluent to a lower pan.

Abstract: A container for holding articles and a method for forming this container. The container comprises a support structure having a first bag disposed inside of the support structure and a second bag sealed closely about the outside of the support structure. The first bag is sealed about the articles and bonded to the second bag to hold the container in one piece after the bags have been opened to reach the articles. The method comprises the steps of sealing the first bag about the articles and placing it in the support structure; sealing the second bag about the support structure; shrinking, by heating, the second bag until it forms a closely fitting sealed surface about the support structure; and forming a bond between the first and second bags to hold the container in one piece after it is opened.

Abstract: A trailer assembly for carrying overwidth loads such as large rectangular concrete slabs. The trailer includes two separate units, a front unit and a rear unit. Each unit includes a frame mounted on a set of tandem wheels. The front unit has upper and lower frames rotatably connected together, allowing the wheels to turn with respect to the upper frame. A tongue is hingedly connected to the front unit. It has a hitch for connection to the towing vehicle and a compression device to apply weight to the hitch for compressive connection with the towing vehicle. Longitudinal cross members are mounted across the front and rear units to support the load. The cross members can be removed and stored parallel to the length of the units for legal width return trip towing. On return trip, the rear unit is towed reverse to the direction towed while loaded. Also disclosed is an embodiment employing two units the same or similar to the front unit to enable being moved laterally to facilitate parking in close space.

Abstract: A multiple piece torch tip and a method of making a multiple piece torch tip. The multiple piece torch tip comprises an inner piece disposed interchangeably within an outer piece. The inner surface of the outer piece has a plurality of regularly spaced slots which decrease in size radially outward and which combine with the smooth exterior of the inner piece to form preheat orifices. The method of making the multiple piece torch tip comprises a swaging step which in one step forms the outer piece. In the swaging step a tubular blank is swaged about a ribbed mandrel. The mandrel presents a monotonically decreasing radial cross-sectional area with respect to the blank for facilitating removal of the swaged outer piece without damage thereto. Also provided is a step of forming an inner piece of a size such that the inner surface of the outer piece and the outer surface of the inner piece combine to form preheat orifice configurations.

Abstract: A method of producing dry, pulverulent, low-density, high-porosity, high-permeability, highly-reactive carbonaceous fuel from slurries of coal and alcohol or stabilized suspensoids of coal and alcohol by single stage flashing. The slurries or suspensoids are heated under pressure to a temperature sufficient to effect single stage flashing of substantially all of the alcohol. The product resulting from flashing then is separated into vapors and solid particulate carbonaceous material. The vapors are condensed into alcohol for reuse and the particulate carbonaceous material is processed further or used as desired.