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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 4359067 | Single control proportioning valve for liquids A simplified, economical and improved single control proportioning valve for liquids which is devoid of a conventional valve body and which responds accurately to actuation of the single control despite no requirement for close tolerances in the component... | 11/16/1982 |
| 4358902 | Thrust producing shoe sole and heel A thrust producing shoe sole and heel having fluid-proof cavities located in the heel portion and in the sole portion which underlies the metatarsal ball area of a foot for which the sole and heel is sized, the cavities being connected by restricted passa... | 11/16/1982 |
| 4324433 | Knockdown arm chair A knockdown arm chair comprising a pair of double leg members each including two legs, two seat assembly supports and a connecting spacer all disposed in a generally common plane; the pair of double leg members interfit rigidly at right angles with the sp... | 04/13/1982 |
| 4303365 | Continuous chain stacker/unstacker A stacker/unstacker for receptacles such as bread pans or baskets or the like includes a pair of laterally spaced-apart endless chains having receptacle carriers mounted therebetween for conveying receptacles between an infeed-outfeed conveyor and the top... | 12/01/1981 |
| 4302724 | Pickup probe for engine timing A pickup probe for engine timing which is responsive electrically to an indicator on a rotating engine part. The free end of the probe is adapted to extend through an access opening in an engine member into proximity with the indicator on the rotating eng... | 11/24/1981 |
| 4301942 | Insulated container An insulated container with a double wall construction having a removable partition centrally located within the container dividing the container into two compartments. A top is pivotally mounted on the partition and is constructed to close one of the com... | 11/24/1981 |
| 4288295 | Coke oven with apparatus for partially drying and preheating coal A coking oven having a coking chamber and a combustion chamber with a high temperature flue gas outlet connected to a first heat exchanger for heating cool air to cool the flue gases to an intermediate temperature, a coal dryer using the intermediate temp... | 09/08/1981 |
| 4288270 | Heat-sealing strapping machine There is disclosed a strapping machine for applying a plastic strap around an object, tensioning the strap and heat-sealing together overlapping portions of the strap, including a retractable heating member movable between the overlapping strap portions a... | 09/08/1981 |
| 4287999 | Secondary seal for floating roof storage tank A floating roof storage tank having an upstanding tank shell for containing liquid to be stored and having therein a floating roof floating on the surface of the stored liquid, a metal shoe carried by the floating roof and extending around the tank shell,... | 09/08/1981 |
| 4287517 | Circuit for eliminating low battery voltage alarm signal at night A battery-operated smoke alarm includes an alerting signal means for indicating when the battery voltage is low by comparing a first signal which is a function of the battery output voltage with a relatively fixed reference signal and producing an alertin... | 09/01/1981 |
| 4287432 | Valve position detecting apparatus A hopper valve module is adapted to be removably mounted in the well of a hopper of a hopper dredge vessel and includes a housing and a valve member movable with respect to the housing for opening and closing the hopper outlet. A transmitter tube containi... | 09/01/1981 |
| 4286843 | Polariscope and filter therefor The filter comprises a multiplicity of light polarizing elements which polarize light in a plurality of planes, and a multiplicity of filtering means associated with the light polarizing elements. In a polariscope, light is directed from a source through ... | 09/01/1981 |
| 4286193 | Starting and operating circuit for gas discharge lamp Starting and operating power is provided to a gas discharge lamp by a circuit which includes a constant-voltage current-limiting ferroresonant transformer connected to an AC source and having high and low voltage output terminals. A full-wave rectifying b... | 08/25/1981 |
| 4283756 | Flashing-light belt The belt includes the usual flexible strip and buckle. Flashing-light means is mounted in the buckle and is powered by a portable supply which may be located in the wearer's pocket. Preferably the light means takes the form of two associated flasher circu... | 08/11/1981 |
| 4278625 | Field transplant systems and methods and components thereof A field transplant system including a machine for sequentially forming groups of polymerized soil plugs having seed receiving recesses in one end thereof and supported on a carrier, and in certain cases interconnected by strips, the carrier being used to ... | 07/14/1981 |
| 4278361 | Channel interconnection apparatus A rectangular channel member has coplanar spaced-apart wall portions defining a slot therebetween and each having a flange extending from the slot inwardly of the channel member and away from the other wall portion at an acute angle. A generally U-shaped ... | 07/14/1981 |
| 4277710 | Control circuit for piezoelectric ultrasonic generators A high power ultrasonic generator for driving a transducer/horn assembly includes a transistor bridge inverter power output circuit connected to a DC source for producing an alternating output current. A pulse generating circuit produces a bipolar train o... | 07/07/1981 |
| 4274659 | Adjustable book cover There is provided a protective and adjustable book cover for paperback books and magazines and the like, which has two complimentary sized cover sections having opposed and spaced apart plies connected along three edges thereof forming a pocket with the r... | 06/23/1981 |
| 4267917 | Article transfer mechanism Article transfer mechanism or apparatus for changing the direction of movement of articles while maintaining the orientation of the articles, including an infeed conveyor conveying articles in a first direction while in a predetermined orientation, a tran... | 05/19/1981 |
| 4266659 | Accumulating roller conveyor An accumulating roller conveyor for conveying articles including a frame and a plurality of conveyor rollers, means rotatably supporting each conveyor roller on the frame and movable upwardly and rearwardly with respect thereto, each conveyor roller norma... | 05/12/1981 |
| 4263731 | Desk set A desk set of all plastic material with a base having front and rear surfaces and spaced apart openings therein with an instrument holder near one end of the base. The instrument holder has three hoops, one extending forwardly of the base and the other ex... | 04/28/1981 |
| 4263684 | Observation hive An observation hive including a main frame containing a standard frame and a shallow frame and having a hinged cover closing the top thereof, the main frame having dovetail grooves on the inside thereof extending from the upper end and terminating at supp... | 04/28/1981 |
| 4263501 | Variable proportioning control apparatus The apparatus may be used to control heater elements for an over chamber. The heater elements are operated in accordance with the output of a comparator having on one input a voltage representative of the temperature in a chamber. The voltage on the other... | 04/21/1981 |
| 4262955 | Storage partition A storage partition for a motor vehicle and particularly a station wagon which provides a compartment for storing material that is hidden from view from the casual onlooker, thereby to permit storage of valuable articles in an unattended vehicle while red... | 04/21/1981 |
| 4262809 | Slotted beam and loadlock therefor The loadlock and beam of the present invention are for use with a pallet rack structure in which the beam is connected to an upright of an end frame with the loadlock. The loadlock has a right angled-shaped bolt with a shank slidably extending through an ... | 04/21/1981 |
| 4262567 | Device for cooling microtome blade A small container contains a frozen liquid or other coolant and is magnetically adhered to a metal microtome blade either by means of a permanent magnet disposed within the container or a magnetized metal wall portion on the container, for cooling the bla... | 04/21/1981 |
| 4262527 | Self-adjusting engine timing pickup probe A self-adjusting engine timing pickup probe adapted to be received in a tubular engine mounting bracket, the probe extending into close proximity with a position indicator on a rotating engine part to provide an air gap. An elongated sensor assembly exten... | 04/21/1981 |
| 4259832 | Grass collection apparatus Grass collection apparatus for attachment to a rotary power mower includes a platform mounted behind the mower and carrying thereon a grass container comprising an open-ended wire mesh cylinder, the lower end of which has removably attached thereto in sur... | 04/07/1981 |
| 4258261 | Electrode assembly for combustion products detector This electrode assembly includes two relatively large-diameter, parallel conductive discs spaced apart by an annular insulator which has peripheral flanges respectively encompassing the perimeters of the discs. The assembly is adapted to be disposed in an... | 03/24/1981 |
| 4257730 | Stand device for boom-type working implements A device for a boom-type working implement which has a working member and a connector both attached to a boom and which is connectable to a tractor by the connector. The device comprises a stand member having one end pivoted to the boom and the other end ... | 03/24/1981 |
| 4256156 | Multi-tension hacksaw A multi-tension hacksaw including a longitudinallly extending frame member having a first blade support member on one end and a bracket on the other end extending laterally therefrom a second blade support member pivotally mounted on the bracket, a tensio... | 03/17/1981 |
| 4254604 | Cartoner and product infeed conveyor therefor A cartoner for inserting a product into an expanded carton having at least one open end and side flaps and an end panel with tuck flap thereon, and thereafter closing the open end, the cartoner accommodating a wide variety of carton shapes and sizes; a pr... | 03/10/1981 |
| 4250215 | Cooking utensil with non-stick cooking surface A cooking utensil having a body sheet of iron base metal with a non-stick coating tenaciously secured to the surfaces thereof that are presented toward foods to be cooked, the non-stick coating being of composite construction including an inner layer and ... | 02/10/1981 |
| 4250164 | Method of treating psoriasis of the nails and composition An improved method of treating psoriasis of the nails comprising applying nail polish containing an anti-psoriasis effective amount of a topical steroid effective against psoriasis therein and composition useful in said method.... | 02/10/1981 |
| 4248407 | Cast house emissions recycle system A cast house emissions recycle system for a blast furnace including a housing surrounding and enclosing the lower portion of the blast furnace and the tap holes and runners therefor and the hot metal ladle associated therewith, structure collecting the em... | 02/03/1981 |
| 4246838 | Multi-row dough slitting apparatus Apparatus for slitting the upper surfaces of a plurality of parallel rows of proofed dough pieces on a conveyor, including a plurality of spray nozzles respectively in general vertical alignment with the longitudinal midline of the path of each row of pro... | 01/27/1981 |
| 4245749 | Safety device A safety device for a pressure vessel having an opening therein in which is positioned an upstanding base secured around the vessel opening with a frangible diaphragm covering the opening. A protective cap covers the base with the frangible diaphragm and ... | 01/20/1981 |
| 4242420 | Selective chromizing in a molten lead medium A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.... | 12/30/1980 |
| 4240865 | Apparatus and method for applying plastic strap A manually operable combination strapping tool for applying plastic strapping around an object includes a strap-tensioning and gripping mechanism for holding the strap in a tensioned loop around the object with the supply portion of the strap overlapping ... | 12/23/1980 |
| 4240634 | Elastic band for pinball game The band is an endless band of one-piece construction which is adapted to be stretched around a set of posts extending upwardly from the playfield board of a pinball game. The band has an annular elastic body having inner and outer annular portions which ... | 12/23/1980 |
