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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 |
| 4503440 | Thin-film magnetic writing head with anti-saturation back-gap layer Apparatus for producing a magnetic image in a magnetic image storage medium. The apparatus includes a thin-film magnetic web with a pole-defining face and a second thin-film blanket magnetically spaced from the first magnetic web and having a second surfa... | 03/05/1985 |
| 4503439 | Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure A thin-film, floppy and compliant, electromagnetic, read/write head structure which is adapted to be pressed against a magnetic imaging medium during reading and writing. Individual heads and associated structure are distributed like "bumps" on one face o... | 03/05/1985 |
| 4500872 | Method for encoding Chinese characters A method of encoding, uniquely, different characters in the Chinese language. The method includes the steps of (1) associating with a selected character a phonetic tag formed with no less than one and no more than three of the recognized Chinese phonetic ... | 02/19/1985 |
| 4495725 | Seed germinating apparatus and method An apparatus is provided for growing plants having a floor with a plurality of raised projections defining trough regions therebetween and being adapted to hold plant watering fluid at a level relative to the upper periphery of the projections. An insert ... | 01/29/1985 |
| 4494125 | Differential-permeability field-concentrating magnetic read/write head A magnetic-image read/write head including inner and outer, substantially co-planar, symmetrically arranged pole portions. In one embodiment, the head is disclosed with the inner pole portion presenting a substantially full-circular facial expanse, and wi... | 01/15/1985 |
| 4494009 | Method and apparatus for capturing an electrical potential generated by a moving air mass A method and apparatus for making available an electrical current, which comprises placing a conductive airfoil in a moving air mass, sinking a conductive element subsurface, and insulating the airfoil from the conductive element and producing an electric... | 01/15/1985 |
| 4493989 | Container end-code redemption scanning A method and apparatus for reading coded information formed on the lid of a carbonated beverage container. The coded information takes the form of spaced linear code elements, such as indentations, and reading of the information contained in the arrangeme... | 01/15/1985 |
| 4490329 | Implosive consolidation of a particle mass including amorphous material A method for the implosive consolidation into a solid body of a mass of free particles, which mass consists, selectively, entirely of amorphous particles, or a mixture of amorphous and nonamorphous particles. During the consolidation act, pressure and tem... | 12/25/1984 |
| 4489868 | Luggage rack A vehicle luggage rack is provided which includes the following components: a pair of longitudinally extending, parallel frame members, each having a first and a second end and being adapted to be fixed to a vehicle; a pair of longitudinally extending, pa... | 12/25/1984 |
| 4487736 | Method for forming a hand-hewn look on a laminate A method of producing a hand-hewn look in a false wood beam. The beam is formed from a planar laminate composed of a foam core sandwiched between an outer cover and an inner multiply paper backing. The laminate is rolled along its length, with the outer c... | 12/11/1984 |
| 4484675 | Board turner apparatus and method capable of multiple turn inspection The board turner apparatus and method is capable of turning a board over several times for repeated inspection of both sides of such board for more accurate grading of such board before allowing the board to be conveyed forward past a retractable stop. Th... | 11/27/1984 |
| 4479545 | Well-cementing stage collar A dual-operating mode stage collar adapted to form part of a conduit string positionable in a well bore. Included is a tubular body having a side port with inner and outer openings. A first sleeve is axially shiftable relative to the body during one opera... | 10/30/1984 |
| 4479409 | Open-end ratchet wrench An open-end ratchet wrench including a handle joined to a crescent-shaped head portion. A jaw member is detachably received within the head portion, the jaw member being removed by axial displacement. Spring-biased, indent-detent means resists axial displ... | 10/30/1984 |
| 4475151 | Switching amplifier circuit A switching current supply circuit, in response to a control voltage, controls the current flowing in an inductive load. Included is a pair of terminals adapted for connection to such a load and a bridge network connected to the terminals for producing a ... | 10/02/1984 |
| 4474211 | Pressure and vacuum relief valve with debris-catching feature A liquid-flow control valve with pressure-sensitive gas-bleed apparatus having a debris-catching feature. Included is a disc sealingly seatable selectively against a valve seat to open and close the valve. Apertures, which extend through the disc, remain ... | 10/02/1984 |
| 4473958 | Filing guide A filing guide for saw chain which includes a plate having a flat expanse joining with a curved expanse at the forward end of the guide which forms a cylinder. The guide is useable, with one side facing upwardly and the cylinder seated in a pocket defined... | 10/02/1984 |
| 4473913 | Therapeutic support cushion An elongate cushion for therapeutically supporting a person in an arched face-down prone position. The cushion has an upper surface which slopes upwardly from each end toward the middle. At least one end has a channel the sides of which support a person's... | 10/02/1984 |
| 4470924 | Nontoxic, immunologically crossreactive toxin A protein from Pseudomonas aeruginosa A nontoxic, immunologically crossreactive toxin A protein produced by a PAO-PR1 mutant strain of Pseudomonas aeruginosa. The protein, in activated form, has substantially no adenosine diphosphate-ribosylating activity, and is nontoxic to cells known to be... | 09/11/1984 |
| 4470051 | Multiple head magnetic recording array Apparatus for producing a preselected final image in a travelling magnetic image-storage medium, which image is formed of an arrangement of individual magnetic image units and line segments formed of a plurality of linearly disposed contiguous units havin... | 09/04/1984 |
| 4469151 | Fluid layering device A fluid layering device for use with a syringe to facilitate layering a liquid from the syringe onto a denser liquid contained in an open-top centrifuge tube. A fitting in the device is releasably attachable to the syringe for receiving liquid therefrom. ... | 09/04/1984 |
| 4468371 | Immunoassay test slide A test slide for the performance of a series of immunoassay tests having: a substantially elongated and thin body of solid material; a plurality of individual test wells formed in said body; alignment means formed in said body in association with each of ... | 08/28/1984 |
| 4468325 | Apparatus for effecting clarification of liquid provided with filter cleaning means Apparatus for effecting clarification of liquid having particulate material entrained therewithin includes a filter screen and a filter-cleaning device disposed adjacent thereto operable for removing particulate material from the filter screen which has b... | 08/28/1984 |
| 4467668 | Reciprocating arc-drive mechanism A device providing reciprocating drive for a vehicle having a sprocket or drive wheel rotatably mounted on a frame. The mechanism is operable to reciprocally rotate a pair of independent hubs which impart a torque on such a wheel in a known direction when... | 08/28/1984 |
| 4462439 | Chain saw with single-wedge, chain-protecting chain support A chain saw mountable on a powered vehicle having a chain support with a loop-defining chain run including an exposed cutting run portion. The chain support has a lower surface which defines a lower tree-cutting surface along which the lower support surfa... | 07/31/1984 |
| 4462171 | Inflatable sole construction A compartmentalized, variable cushioning sole construction in footwear having a top attached to an inner sole. The construction includes an outer sole and a flexible wall structure joining the peripheral edges of the inner and outer soles to form an enclo... | 07/31/1984 |
| 4461720 | Fire-retardant treatment composition A composition for treating wood to impart fire retardance prepared by converting dicyandiamide to an aqueous guanyl urea solution, methylolating the guanyl urea and introducing phosphoric acid to produce a phosphate salt of the methylolated guanyl urea.... | 07/24/1984 |
| 4459782 | Belt grinding with controlled coolant flow A belt grinder cooling method and apparatus featuring specially controlled flows of a coolant liquid--one in the interface region between the working run of the belt and a supporting platen, another in the interface region between a workpiece and the belt... | 07/17/1984 |
| 4458465 | Structural member A structural member including a chord member and a web joined through an edge to the chord member. The web has a multi-layered laminated construction with opposite plies forming the faces thereof having grain which is perpendicular to the grain of the cho... | 07/10/1984 |
| 4453642 | Carriage-mounted skidding line take-up apparatus Apparatus for use in a skyline logging system. A carriage mounted for reversible travel on a skyline is transported by a skidding line connected to a hoisting line which feeds through the carriage for attachment to logs. A tagline is attached at one end t... | 06/12/1984 |
| 4453311 | Scissors with thumb retainer Scissors with thumb retainer for receiving the two phalanges of the thumb. The thumb retainer integrally joins and is generally in line with the shank of the thumb-actuated blade. It includes a cup portion against which the outer end of the distal phalanx... | 06/12/1984 |
| 4452263 | Cart washing and sanitizing apparatus Apparatus for washing a delivery cart of the type having an open side. The apparatus includes a chamber and a floor-mounted platform defining a chamber washing station. A pair of side-by-side, vertically disposed spray booms are mounted within the chamber... | 06/05/1984 |
| 4449042 | Redeemable container with end closure redemption code A redeemable carbonated beverage can on the lid of which there is provided a pair of spaced, redundant, arcuately distributed code patches containing regional redemption information. The code patches are read by a scanning laser beam. These patches may be... | 05/15/1984 |
| 4447299 | Use of alcohol for increasing the current efficiency of chromium plating Plating bath solution usable in the electrodeposition of chromium on a cathode which includes methyl and/or ethyl alcohol.... | 05/08/1984 |
| 4446601 | Squid cleaning method and apparatus A method and apparatus for cleaning squid bodies which have been separated from the heads and tentacles, employing upstream and downstream, partially overlapping, facially confronting, perforate conveyor belts, through the perforations in which a vacuum a... | 05/08/1984 |
| 4445853 | Positive release face-bow/mouth-bow mechanism A positive-separation, orthodontic, face-bow/mouth-bow mechanism, wherein a spring device effects sure separation of a disengageable face-bow and mouth-bow under circumstances when, during normal usage, compression transmission through these devices relax... | 05/01/1984 |
| 4444542 | Vehicle with double booms An earth-working vehicle with a pair of articulated booms mounted side-by-side adjacent the forward end of a turntable in the vehicle. The booms pivot in parallel vertical planes that parallel the longitudinal axis of the turntable. An operator's station ... | 04/24/1984 |
| 4444357 | Differing-temperature liquid-mixing apparatus and method using pulsed, duty-cycle temperature control A method and apparatus for producing from two different liquid input streams which are at different temperatures, a single output stream with a selectable, low-thermal-noise, regulated temperature which is intermediate the input streams' temperatures. The... | 04/24/1984 |
| 4442621 | Self-propelled troller A self-propelled troller having an elongate hull which is powered by a rear propeller for movement in a forward direction in water. An elongate tube in the troller extends from the bow of the hull rearwardly of, and below, the propeller. A fishing line ad... | 04/17/1984 |
