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| Number | Title | Issue Date |
| 4513216 | Multi-pole rotor particularly for small and miniature electric generators and motors A rotor for small motors, or generators, having circumferentially arranged segmental poles which extend over the entire axial length of the rotor can be fabricated by molding a pair of elements from particulate magnetic material of high coercivity with a ... | 04/23/1985 |
| 4449095 | Process and apparatus for recording hysteresis curves of magnetic materials A process for measuring the hysteresis curve of magnetic materials comprises the generation of a magnetic field of varying amplitude, placing the sample to be measured into that field with a measuring coil and a potential coil attached thereto, integratin... | 05/15/1984 |
| 4155406 | Protection and wearing device for equidae hooves This plastic protection and wearing device for equidae hooves comprises a sole element attached to an upper element engaging the outer surface of the hoof and characterized in that the upper is open at its rear end, the rear end covered with a heel-piece ... | 05/22/1979 |
| 4153403 | Machine for automatically making plaster slurry and dispensing it to dental molds Apparatus for automatically mixing dry powder supplied in a quantity determined by a size of a pair of dental molds with liquid to form a slurry, dispensing the slurry to the dental molds and for cleaning the apparatus after the slurry has been dispensed ... | 05/08/1979 |
| 4148497 | Semi-trailer lifting and coupling gear for tractor vehicles This device for lifting the pole of a trailer of the semi-carried type and coupling same to a tractor vehicle comprises a supporting bracket secured beneath and at the rear of the tractor in alignment with the center line thereof, a lever having a hook po... | 04/10/1979 |
| 4142281 | Magnetic roller for electrographic developing and/or reproducing devices The magnet carrier assembly of an electrographic copying device is fabricated from a number of separate parts instead of being machined from a single block of metal. The assembly can consist of a tubular body which supports the magnets either on the outsi... | 03/06/1979 |
| 4139913 | Extensible maternity slacks The invention relates to extensible maternity slacks having a front flap adapted to be joined to the edge of a rear flap by a button-hole co-operating with a plurality of buttons, the front flap further comprising on its upper edge a waist-band containing... | 02/20/1979 |
| 4139154 | Rail for center-flange wheels The present invention relates to a rail intended to constitute a tread for heavy duty rolling stock, such as gantry cranes, mounted on wheels or rollers and concerns more specifically a guide rail on which both center-flange wheels or rollers, and lateral... | 02/13/1979 |
| 4137498 | Magnetic flux standard and method for calibrating fluxmeters A magnetic flux standard and method for calibrating magnetic fluxmeters includes the use of a device for measuring changes in the flux of an air gap produced by the insertion into the gap of a magnetically saturable body of known dimensions and magnetic c... | 01/30/1979 |
| 4131119 | Ultrasonic cigarette-holder or pipe stem This cigarette-holder or pipe stem comprises a duct connecting the combustion area to the mouthpiece, and means for generating ultrasonic vibration directed across said duct, said means consisting essentially of a battery-operated integrated circuit opera... | 12/26/1978 |
| 4130470 | Method for generating a pH-function for use in electrophoresis Method for changing the pH value of a compound used in electrophoresis which comprises the generating of the pH-function along at least part of the separation path from the protolysis equilibrium with the separation method and/or chargeable groups immobil... | 12/19/1978 |
| 4125807 | Magnetic thickness gauge having convertible scales A thickness gauge for measuring the thickness of a layer applied to a ferromagnetic base by measuring the attractive force of a permanent magnet in contact with the applied layer is provided with easily removable, interchangeable scales to permit direct r... | 11/14/1978 |
| 4121340 | Oral implantology A combination bladevent subperiosteal implant in which the abutment post which bears an artificial tooth or a tooth in a full arch splint is isolated from and only indirectly attached to the bladevent body through a subperiosteal portion of the implant. T... | 10/24/1978 |
| 4119311 | Combination trampoline and rebounding device with detachable support means A pair of detachable L-shaped auxiliary supports attachable to a conventional trampoline for supporting the trampoline bed in an upright position to convert the trampoline into a rebounding device. The L-shaped supports are used to pivot the trampoline fr... | 10/10/1978 |
| 4112809 | Stringed instrument for play training A stringed instrument for training purposes resembles the usual instrument but comprises a body of sound-damping material which replaces the resonance-box to reduce exterior sound, the sound of the strings being transmitted to the ears of the user by a li... | 09/12/1978 |
| 4113400 | Impact resistant tongue-and-groove coupling for highway traffic barricades The vertical tongue-and-groove arrangement which is integrally molded on the ends of a concrete traffic barricade includes an impact resistant insert to protect the coupling against chipping, cracking or breaking caused by repeated use when the barricade ... | 09/12/1978 |
| 4092013 | Mixer with no moving parts A mixing device for combining two or more components, at least one of which is a fluid, comprises a cylindrical housing having a tangentially arranged tubular inlet for a liquid, a second inlet for another component to be mixed with the fluid, and a centr... | 05/30/1978 |
| 4083083 | Machine for cutting poultry into selectively variable portions A machine originally constructed for the automatic cutting of fowl, such as chickens or the like, into nine portions can be modified by the selective removal and/or addition of elements to produce fowl cut into any number of symmetrical pairs of portions ... | 04/11/1978 |
| 4082046 | Display unit This display unit comprises a plurality of superposed shelves or trays and is adapted to be extended from a minimum storage or shipping height to a maximum or operative height by simply pulling one of the endmost shelves or trays, each shelf or tray carry... | 04/04/1978 |
| 4080766 | Demountable partition structure A demountable partitioning system for offices and the like includes an elongated floor channel member provided with teeth which engage the carpeting to ensure stability, with a series of snap-in supporting members which define a floor level raceway for se... | 03/28/1978 |
| 4076972 | Liquid contact switch having plural compartments and electrical heater An electrical switch of the liquid contact type having a housing divided into three compartments: (1) a power compartment having electrodes, (2) a control compartment containing a resistor and (3) an intermediate compartment communicating with the power c... | 02/28/1978 |
| 4076591 | Method in microbiological analysis In microbiological analysis wherein microorganisms are grown on an elongated substrate, a method which makes it possible to simultaneously study the effect of a number of different nutrition components on the growth of the organisms consists of dividing t... | 02/28/1978 |
| 4075659 | Electronic door announcer Electronic door announcer for apartments of a multi-family dwelling having a community television antenna in which the signals due to sound and video operation of the announcer are carried by at least part of the community antenna coaxial cable system, sw... | 02/21/1978 |
| 4072075 | Cake cutter Apparatus for cutting a circular cake into a number of equal, segmental pieces consists of a series of superposed horizontal band cutters arranged to intersect a central axis at equal horizontal angles, the cutters being arranged over a vertically movable... | 02/07/1978 |
| 4072318 | Baby carriage A carriage for carrying a baby or child is disclosed wherein a wheeled chassis has attached to it a body for carrying the child, the body being adjustable to facilitate various sizes of children. The body is adjustably attached to the chassis to readily m... | 02/07/1978 |
| 4065140 | Ski seat A collapsible seat for skiers comprises a narrow, elongated web provided with a centrally facing pocket at each end so that the handle portions of a pair of ski poles can be inserted into the respective pockets to suspend the central portion of the web fo... | 12/27/1977 |
| 4063706 | Pinch valve formed from a wire helix A wire helix having adjacent turns normally spaced so that the wall of a flexible tubing will be pinched closed when placed between them has at least one pair of turns spaced far enough apart to allow the tubing to pass between them without being pinched;... | 12/20/1977 |
| 4063970 | Method of making permanent magnets Method of making an anisotropic permanent magnetic body which has a (B.H)max of at least 1.4 × 106 Gauss . Oersted and a remanence of at least 2500 Gauss, utilizes magnetic powder particles having a coercivity J HC | 12/20/1977 |
| 4059362 | Concrete highway traffic barricade having integrally formed coupling A highway traffic lane barrier is composed of precast, reinforced concrete barricades which are joined together in alignment with each other by a horizontally and vertically tapered, vertical tongue-and-groove arrangement which is integrally molded on the... | 11/22/1977 |
| 4059752 | Trophy lamp An ornamental trophy consists of a base upon which are mounted a three dimensional trophy and one or more receptacles for displaying a memento of the trophy such as a certificate, or a photograph; a light source, such as an ornamental lamp, is also suppor... | 11/22/1977 |
| 4058763 | Apparatus for automatically magnetizing permanent magnet bodies, measuring their magnetic retentivity and sorting them An elongated generally U-shaped ferromagnetic yoke has a series of coils embedded in its leg portions at spaced positions along its length so that a magnet body can be moved along the length of the air gap of the yoke so that that it can be magnetized and... | 11/15/1977 |
| 4056192 | Display device for spectacles A display device for supporting spectacles comprises a core member which is arranged to be straddled by a frame of the spectacles to be displayed and the width of which equals or slightly exceeds the center-to-center distance between hinges of the frame, ... | 11/01/1977 |
| 4054056 | Calorimetry probe A calorimetric probe for measuring heat produced in a fluid consists of a tube through which the measured fluid flows and having two thermoelements at intervals spaced along the tube, each being connected between the tube and a surrounding element having ... | 10/18/1977 |
| 4050539 | Exhaust apparatus for internal combustion engine An exhaust apparatus for internal combustion engines comprises an outer pipe having an enlarged intermediate portion and at least one end portion having nearly the same diameter as the exhaust pipe from the engine for connection thereto, an inner pipe of ... | 09/27/1977 |
| 4049295 | Couplings for metal tubes A fluid-tight coupling for the end to end connection of metal tubes consists essentially of a conical male element and a conical female element fixed to the end of a respective tube, at least one of said elements being constituted by a permanent magnet.... | 09/20/1977 |
| 4046515 | Diluting and agitating device Apparatus for simultaneously adding liquid to a test tube and agitating the resulting contents consists of a mounting for a pipette to discharge liquid into the test tube, with a vibratory agitator also supported by the mounting, and having its lower end ... | 09/06/1977 |
| 4043275 | Chain length adjuster and locking device To facilitate adjusting the length of a heavy cargo hold-down chain on a transport vehicle and for positively and safely locking the chain after adjustment, a pair of identical slotted plates are employed in reverse overlapping relationship and are detach... | 08/23/1977 |
| 4037504 | Device in a piano mechanism A piano mechanism for correlating the movement of the damper with the movement of the hammer consists of a hammer lifter connected between the hammer arm and the damper arm at a location on the side of its axis opposite to that of the damper itself.... | 07/26/1977 |
| 4037108 | Ion source with capability of changing between operation modes A combined ion source capable of operating either in an electron-impact-ionization mode or in a chemical ionization mode and being quickly shiftable from one mode to the other, consists of a cavity into which either a sample gas can be introduced to be io... | 07/19/1977 |
| 4031571 | Hip endoprosthesis with stepped load-transferring surfaces The thigh portion of an endoprosthesis for hip joints is provided with stepped projecting surfaces to distribute forces in the bone tissue.... | 06/28/1977 |
