Abstract: There is disclosed a spray head for an airless spray gun. The spray head has a tubular housing for removable attachment to the discharge end of an otherwise conventional airless spray gun, adjacent the valve member of the spray gun. The housing is counterbored to form an inner annular shoulder and contains a removable plug that is slidably received within the housing. The annular shoulder is stop for the plug which is retained in the housing at the preselected location by a retainer member that is removably threaded into the discharge end of the housing. The plug has, on its upstream end, a valve seat to engage the valve member of the spray gun and, on its downstream end, a discharge orifice formed by divergent angular bores which intersect a through bore of the plug.

Abstract: There is disclosed a method and an apparatus for treatment of water in an electrolytic cell having stacked plates of magnesium and copper in alternating array, separated by thin metal, brass washers. The stacked plates are disposed transversely across a cylindrical treatment chamber, preferably with four stacks aligned on equally angular spacings within the chamber. The water to be treated is introduced into the chamber tangentially to the inner wall thereof and is directed over the stacked plates. The tangential introduction of water into the treatment chamber generates a vortex flow of the water across the electrolytic cells which accelerates clarification of the water by forced separation of the precipitates which are collected in the bottom of the separation chamber and periodically removed. The clarified water is removed from the treatment chamber and passed through subsequent processing.

Abstract: There is disclosed a method for the removal of impurities, particularly organic impurities from granular solids, having its greatest immediate application for the regeneration of spent adsorbents which are used to purify waste water. The spent activated carbon is immersed in an aqueous bath which preferably contains a surface active agent, and water is circulated over the activated carbon while ultrasonic vibration is applied to the aqueous bath at a frequency from about 1 to about 100 kHz to desorb the organic adsorbate from the activated carbon. The desorbed organic compounds are washed from the activated carbon by the circulating water stream and are decomposed by introducing ozone into the water stream and, most preferably, while subjecting the water stream to ultraviolet radiation, thereby producing a wash water which can be safely discharged to the environment.

Abstract: Disclosed is a chiropractic belt 10 having two belt segments 16 and 18 joined together by a central elastic section 12. There is an elastic cross-structure 26 which overlies and is connected at the intersection of the cross-structure to the mid-section of the elastic member. The ends of the cross-structure are connected to the belt segments. Right hand and left hand tensioning members 58 and 60 are attached at the midsection at the intersection of the cross structure, with free ends of the tensioning members being adapted to be connected or disconnected, respectively, to the left and right hand belt segments.

Abstract: Disclosed is a safety feature for wall beds which provides for jamming of the linkages of a counter-balancing mechanism if anchors for the mounting frame of the counter-balancing mechanism accidentally dislodge.

Abstract: A digital-to-analog converter is disclosed which employs a ladder configuration comprising a series of R1-R2-R3 stages in which resistors R2 and R3 are selected so that mathematically the combined resistance of R2 in parallel with R3 is equal to twice the resistance of R1. The resistance of resistor R3 is on the order of 3 to 30 times greater than the resistance of resistor R2. These resistors are configured in stages with FET switches.

Abstract: Disclosed is a track fitting for an airplane seat leg which has a unitary bearing section and wall element that carries the pin holding the seat leg in position. The bearing section comprises an opening defined by two truncated conical walls with the abutting truncated sections providing a bearing site. The open ends of the opening are surrounded by segmented spherical bearing surfaces which carry caps having conforming internal, spherical bearing surfaces. The pin passes through the assembly of caps and bearing section to secure the leg in position. A plastic, box-like anti-rattle device to prevent rattling is mounted to the rear of the track fitting and bears against the top of a track receiving the fitting.

Abstract: A restraining and support device for infants bottles and the like to prevent the bottle from being accidently or intentionally thrown to the ground or the floor is disclosed. The device consists of a flexible resilient elongated member, one end of which (the attachment end) is adapted to be attached to a fixed object and the opposite end (the grasping end) is adapted to hold an infants bottle. The attachment end of the elongated member carries adjustable loop for removably securing the device to a fixed object. The grasping end of the device carries a resilient annulus which is fitted around the neck of the bottle to be restrained. Stand-off connectors connect the grasping annulus and the strap to respective ends of the elongated member and serve keep the elongated member away from the fixed object to which it is secured to avoid entanglement of the device.

Abstract: Disclosed is a method of making garment protector that is of high quality, having an envelope structure made of cloth fabric with an easy access opening in one of its sides covered by a flap member.

Abstract: A golf club container and cart combination comprises a frame on which is carried the container element for the golf clubs and ancillary golf equipment. The container, interior, is divided into two coaxial spaces, a center space and an outer circumferential club containing space. The center space may be further divided into two or more compartments. The upper compartments are accessed through the upper end of the container and a wheel container is defined at the lower end of the bag and is accessed through the bottom of the bag.The frame carries a pivotal handle which may be folded back against the bag of the container or extended when utilizing the device as a pull-cart. A foldable strut assembly is also carried by the frame and is adapted to be folded flat against the frame or extended in a cantilever fashion to carry a wheel and axle assembly.

Abstract: Disclosed is a medical valve comprising a pair of plates holding in tension a membrane folded over to form a chamber with an elongated, slit-like opening along adjoining edges. The plates include interlocking members which interlock the plates together. An inlet tube in communication with the chamber extends outwardly from the plates. The preferred configuration of the chamber is trapezoidal. Also disclosed is a surgical instrument that is a needle-like member having an elongated slot in the wall of this member. A method of using this instrument to implant a tubular element in the body of a patient is also disclosed.

Abstract: Disclosed is a valve used in the water drainage system of an aircraft having a pressurized cabin. The valve includes a housing with a water inlet and outlet and in which a float is mounted by a spring. The float includes a stopper element adapted to engage the water outlet in the housing. The water inlet is in communication with the cabin pressure and the water being discharged and the outlet is in communication with atmospheric pressure outside the aircraft. The spring normally biases the float so that the stopper element is away from the water outlet when the plane is on the ground. As the plane gains altitude, the differential in pressure between atmospheric pressure and cabin pressure closes the valve, with the spring moving the stopper element into engagement with the water outlet. This occurs in response to the changing differential in pressure between the cabin pressure and atmospheric pressure.

Abstract: Disclosed is a machine for manufacturing bakery products wherein a main drive motors powers feeding means for advancing rows of individual dough packets step-wise along an assembly line to a Ferris-wheel type conveyor including rows of cups into which individual dough packets are deposited row by row. The Ferris-wheel type conveyor is driven by the main drive motor to advance the rows of cup means step-wise row by row. The novel machine includes an inclined table with a surface over which the individual dough packets slide as the dough packets are advanced by the feeding means to the Ferris-wheel type conveyor. The table terminates at a lower end thereof near the Ferris-wheel type conveyor. A gate comprising a roller member with receptacles is positioned to receive the individual dough packets as the packets fall off the table member and into aligned receptacles. The roller has three rows of receptacles, with each row spaced apart from adjacent rows by 120.degree.

Abstract: With reference to FIG. 3, the sloping roof (250) of a building (10) incorporates inner and outer juxtaposed metal panels, (15, 16) spaced from each other to define passageways (20) which serve as heat exchangers. A closed-loop water circulation system (18) connects the passageway (20) with low, medium and high grade heat store chambers (21, 23, 25) disposed within the building foundation structure (13). The water circulation system (18) employs sub-systems (22, 29 and 31) which comprise, respectively, primary, secondary and tertiary sub-systems. The heat store chamber (21) comprises a portion of the primary circulation sub-system (22) whereby water is re-circulated through the panel passageways (20) so as to be raised in temperature 20 by solar heat. In addition to the heat store chamber (21), the primary sub-system (22) comprises a heat pump unit (27).

Abstract: There is disclosed an instrument for the continuous monitoring of emergency stand-by batteries during operation of the batteries. The invention monitors the emergency batteries during all discharge operations and records the usage and conditions of the batteries as well as alerts the operators when the discharge voltage of the batteries falls below the minimum required for the particular application. The instrument includes voltage, current and temperature sensors which generate signals that are applied through gain amplifiers to an analog to digital converter and then to a central processing unit. The central processing unit receives a reference voltage and has an independent emergency power supply. The central processing unit outputs signals to a liquid crystal display as well as to a printer and receives commands from a key pad. The central processor unit is supplied with a software operating program which is recorded on a ROM and has system RAM for non-volatile storage and a clock.

Abstract: There is disclosed a solids collection and removal system for a settling tank. It is particularly designed for installation in generally rectangular, in-ground settling tanks such as is commonly used for water treatment. The collection device includes a plurality of bottom-travelling collectors which have elongated, open-bottomed channel housings, each with a scraper blade pivotally supported by a pin-in-slot attachment to provide a modified pendulum suspension. The collectors, which span the width of the tank, are mounted on a track or other suitable mechanical linkage for oscillatory travel across preselected portions of the bottom of the settling tank. Each collector is divided by a longitudinal baffle into a lowermost collection chamber and an upper evacuation chamber. The latter is connected through a conduit to a vacuum system for the evacuation of the solids from the collectors.

Abstract: There is disclosed a method for the treatment of confined bodies of water such as a swimming pool to remove scale deposits from the surfaces of the vessel containing the water. The water is acidified with a mixture of hydrochloric acid, sulfamic acid and sodium bisulfate to eliminate its total alkalinity, as determined by a standard neutralization test. The water is continuously or repeatedly monitored for total alkalinity following the initial addition of acid, to insure that sufficient acid has been added. The acidified water has a tendency to gain total alkalinity as the scale deposits are removed during the treatment, and monitoring detects this change, permitting correction by addition of acid. After the treatment with the acid, which can last from several hours to several days, any excess treatment acid is neutralized by the addition of a neutralizing agent which is preferably magnesium oxide or magnesium hydroxide.

Abstract: Disclosed is a device for locating the open side of an electrical outlet box comprising a flat locater plate having a pair of positioning pins extending outwardly from one side of the plate and a pair of template alignment pins extending outwardly from the other side of the plate. The template alignment pins are offset inwardly from the marginal edges of the locater plate to allow for clearance.

Abstract: An improved press-on bottle cap is disclosed in which the cap comprises a top disk and a thin-walled outer skirt dependent therefrom with an annular tear band which, when separated from the cap, divides the cap into a lower ring and an upper reclosure cap. An annular lip is provided about the outside wall of the cap, approximately in the middle of the reclosure cap and the tear tab, which is integral with the tear band, extends upwardly into contact with the underside of the annular lip. Preferably, the lip is discontinuous with an open sector above the tear tab, and the cap is fabricated without the necessity to use a split-cavity mold, and a preferred mold construction is also disclosed. A compressible, plastic foam gasket is employed in the cap to seal the container contents. A foam gasket is seated on the undersurface of the cap in a position to bear against the upper end of the neck of the container which is received in the cap.