Abstract: An intrusion sensing device includes a sound frequency discriminating micophone having a diaphragm coupled to the atmosphere through a closed end resonating chamber having a length equal to one quarter the median wavelength of a relatively narrow band of sound frequencies peculiar to the act of intrusion into a building or the like. The diaphragm has a layer of piezoelectic material bonded thereto for generating an alarm signal only when sounds within such narrow band of frequencies are received within the resonating chamber. A linear amplifier connected to the microphone has an extremely low current drain, permitting continuous operation of the device while using small, low power batteries.

Abstract: An inexpensive anti-theft control device for an ignition fired internal combustion engine comprising a resistor and settable switch connected in series between the interruptor circuit from the ignition coil and ground whereby, when the switch is closed, a portion of the current normally necessary to induce sufficient voltage in the coil to properly fire the spark plugs is drained off.

Abstract: The usual relatively long induction passage connecting the compressor of a supercharger between the carburetor and the intake manifold of an internal combustion engine is bypassed during idling condition by a relatively small idle mixture transfer passage which directs the idling fuel/air mixture directly against a heated section of the intake manifold, thereby preventing precipitation of the fuel during idling. An opening between a part of the induction passage upstream from the compressor and a portion thereof downstream from the compressor limits the boost pressure developed by the compressor to a predetermined upper limit.

Abstract: A cup formed of a cylindrical vessel and a hollow carrying handle attached to the vessel containing a liquid fuel reservoir from which fuel in a gaseous state is conducted to a burner located beneath a domed portion of the bottom wall of the vessel.

Abstract: The stabilizer includes telescoping members, one comprising a bracket attachable to a vehicle body and the other comprising an extendable ground engaging post. Two oppositely operating one-way ball clutches are selectively controlled to lock the post in stabilizing position or in retracted position, and a third one-way ball clutch which cooperates with the post and one of the first two ball clutches is operated by a hand actuated rocking lever to raise the vehicle body for levelling or like purposes.

Abstract: Explosive fumes in the lower portion of a power boat are detected by providing a manually collapsible elastomeric bulb, forming a one-way pump, adjacent a remote station on the boat, the bulb having its inlet remotely connected by a long inlet tube to a lower portion of the boat hull where such fumes normally collect. The outlet of the bulb is connected to a nose mask having an orifice therein to increase the velocity of air passing into the mask. By placing the mask over a person's nose and successively and quickly collapsing the bulb, high velocity bursts of air are directed into the person's nose so that he may readily detect any fumes.

Abstract: A cash register drawer releasing device wherein the drawer latch is pivotally supported for movement to unlatching position, but normally blocked from such movement by a toggle device which may be released by a relatively weak electromagnet.

Abstract: The carrier has a stiff wire bent to form belt-receiving loops and a frame for supporting a wire mesh fabric bait container having an opening therein. A flexible cloth fabric, such as the upper 4 to 6 inches of a man's heavy nylon stocking, covers the opening and has an access opening therein bordered by a pair of opposed lip portions. Tension springs secured to respective lip portions hold the lip portions together to normally close the access opening and thus prevent escape of the bait, while permitting ready access thereto.

Abstract: A one-piece heel cushion formed of homogeneous elastomeric material adapted to conform to the insole of a wearer's shoe to relieve the pain of a heel spur. The cushion tapers toward its forward end and has an elongate cavity in the lower surface thereof extending directly under the heel bone, and a slight concavity in the upper surface located over the cavity. The cavity is approximately one-third the height of the cushion at it's rear end resulting in a bridging section over the cavity which flexes under the weight of a person's heel while the portions of the cushion surrounding the cavity bear the major portion of the wearer's weight.

Abstract: An automatic voltage regulating system for an integrated circuit having a plurality of enhancement mode metal oxide semiconductor field effect transistors on a common semiconductor crystal, the regulation system including a group of series connected metal oxide semiconductor field effect transistors on the same crystal, wherein the combined threshold voltage of such regulating transistors forms a reference to control the bias voltage for the remaining transistors.

Abstract: A fixed data printer is associated with a variable transaction data printer to print a customer receipt and includes a pivoted tape guide member having a tear-off edge by which the tape is severed after passing through the transaction data printer. When the tape is severed over the tear-off edge, a platen section on the guide member presses the tape against a printing member having type thereon representing fixed data, such as a store name, advertising material, etc. to transfer an impression of such fixed data to the tape.

Abstract: A surgical scrub soap in liquid form that kills both Staphyllococcus aureus and Pseudomonas aerogenosa bacteria. The soap is nontoxic to humans and animals, nonirritating to the skin and biodegradable, and it rinses clean without leaving a residue. The soap is a formulation of ingredients, including a minor amount of pectin as a thickening agent, a minor amount of methanol or ethanol, glycerol, propylene glycol, a trace of a suitable dye, a minor amount of the disodium salt of ethylene diamine tetraacetic acid as a pH adjuster, 0.09% by weight of the cis isomer of 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride as a germicide, dodecylbenzene sulfonate of triethylamine as a biodegradable detergent, a trace amount of a suitable fragrance and 55.85% by weight of deionized water. The formulation is prepared at ordinary room temperature, without the addition of any heat, in accordance with the following procedure. The pectin and alcohol are stirred for five minutes to solubilize the pectin.

Abstract: A removable insulating cover for a display type refrigerating cabinet is formed of spaced sheets of flexible plastic secured along their edges and along spaced seam lines extending parallel to the length of the cover to form narrow contiguous panels. Relatively thick layers of loosely packed glass fibers fill the panels. The cover is adapted to be suspended across the opening of the cabinet to prevent a transfer of heat through the opening and into the interior of the cabinet during certain periods of time.

Abstract: A rotatably adjustable orthodontic bracket assembly for correcting improperly positioned or angled teeth. A tooth band or bonding base is provided with a bearing in which a pivot element is mounted having at one end a flexible friction flange engaging the posterior side of the band or base and having an arch wire bracket at the other end engaging the anterior side of the band or base so that the bracket may be readily adjusted to a desired angular setting and retained in such setting during handling. Thereafter, the bracket is welded to the band or base and subsequently the band or base is cemented to the tooth. A gage is provided to readily adjust the bracket to any predetermined angular setting or to indicate the angle to which the bracket has been previously set.

Abstract: A game board is provided with a center area and a plurality of squares surrounding such area and over which playing pieces, one for each player, are advanced as directed by a suitable randomly operable selecting device. Randomly situated ones of the squares form open ended cells having entrances which open in different directions, arranged at random to enable scoring and advancement of the playing pieces about the center area according to prescribed rules.

Abstract: A solar heating system including a large number of nested thin wall cylindrical collector-convertors disposed in vertical positions and housed within an insulated housing having a window therein to allow light rays from the sun to strike the collectors at any of different angles regardless of the latitude or altitude of the sun. Ultraviolet and other shorter wave length rays are converted into heat upon striking the inner surfaces of the collectors to heat the walls thereof, and infra-red and other longer wave length rays are absorbed by coatings on the collectors to likewise heat the walls thereof. Those rays which are reflected strike the opposite collector wall surfaces to again be converted to heat. The collectors are of such length as to enable multiple reflections under practically all conditions.