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| Number | Title | Issue Date |
| 4344473 | Means for separating light reflective fabrics This invention relates to dynamic devices for insulating wall surfaces and especially surfaces including a window. A self-inflating solar curtain may be automatically raised and lowered in response to the direction of heat flow into or out of a confined s... | 08/17/1982 |
| 4313484 | Self-inflating solar curtain This invention relates to a self-inflating solar curtain and to the mechanism for automatically raising and lowering same between its operative and inoperative positions in response to the direction of heat flow into and out of a confined space within whi... | 02/02/1982 |
| 4303074 | Method for applying therapeutic heat A method for applying therapeutic heat by a therapeutic heating pad which is not hot to the touch provides substantial infrared radiation to a user. Accordingly it can be used for extended periods without feeling uncomfortable to the skin, while imparting... | 12/01/1981 |
| 4302779 | Methods of reducing blooming in the drive of charge-coupled image sensors Signal charges are accumulated in photosensitive elements of an integrated semiconductor imaging matrix, the charges being divided into two parts. Responsive to first and second pulse signals, the first or preceding part of the charge from each of the ele... | 11/24/1981 |
| 4302687 | Semiconductor switch A semiconductor (preferably a thyristor) switch has characteristics that can be represented by an equivalent circuit including an interconnected pair of opposite conductive types of transistors. The base terminals of these transistors represent anode and ... | 11/24/1981 |
| 4293737 | Ringing decoder circuit A telephone system automatic ringing code decoder useful to provide single party ringing on a multi-party telephone line. The decoder counts the number of ring bursts and detects the length of the last ring burst in the first ring burst code sequence and ... | 10/06/1981 |
| 4293739 | Circuit with crosstalk elimination capability A switching network has a group of incoming lines respectively connected to the terminal equipments of a plurality of subscriber stations. A group of outgoing lines are respectively connected to a plurality of trunk circuits. A plurality of crosspoints ar... | 10/06/1981 |
| 4291690 | Means for performing an emergency cricothyrotomy A self-contained, presterilized trocar assembly, with an outer cannula and cutting stylet, is just long enough to penetrate the skin of the throat and the cricothyroid membrane and reach the posterior third of the lumen of an average adult trachea. Its sh... | 09/29/1981 |
| 4292651 | Expansion and compression of television signals by use of differential coding The encoding of television signals, to be either processed or transmitted in numerical form, uses a modulation of differential code impulses (PDCM). There is a quantizing characteristic which makes it possible to reduce the numerical flow of signals to be... | 09/29/1981 |
| 4292662 | Photographic exposure chamber An integrally constructed light stage is formed with a chamber having three translucent and interior reflective panels and a light reflective unit forming the back and floor. Hoods with light reflective interior surfaces cover the panels. Light sources ar... | 09/29/1981 |
| 4292609 | Recursive filter for transfer of charge deposits A CTD recursive filter includes a single channel with two side-by-side CTD delay lines wherein charges are transferred in opposite directions. Each electrode of the first delay line forms a pair with a corresponding electrode of the second delay line. Eac... | 09/29/1981 |
| 4290538 | Fuel-dispensing system with self-checking means A processor is used to control a price display unit for a fluid-dispensing system. The amount of fluid dispensed by the system in measured and information responsive thereto is fed to the processor. The processor calculates the cost of the dispensed fluid... | 09/22/1981 |
| 4290041 | Voltage dependent nonlinear resistor A "varistor" or voltage-dependent nonlinear resistor employs a ceramic base body having a voltage-dependent nonlinearity. First and second lead-out electrode layers are formed on first and second external surfaces, respectively, of the ceramic base body. ... | 09/15/1981 |
| 4289926 | Transmitter for a telewriter The invention improves the signal-to-noise ratio of a telewriter transmitter without requiring a change in preexisting telewriter transmission equipment. The individual crosspoints of an orthogonal matrix of wires are identified by high-frequency X and Y ... | 09/15/1981 |
| 4290062 | System for digital transmission and text display A system for transmission and display of texts on a television screen enables a display of a magazine made up of several pages. The packets of data relative to one page are transmitted without being multiplexed with the packets from another page of the sa... | 09/15/1981 |
| 4290037 | Flat electromagnetic relay A flat electromagnetic relay which includes a base member having at least two projections extending from a flat surface thereof. At least one hole (or indent), fitting a pertinent one of the projections, is formed in each supporting block that holds a con... | 09/15/1981 |
| 4288753 | Muting circuit with operational amplifier An FM muting circuit has a common input terminal and uses an operational amplifier which has a pair of input terminals. The two amplifier input terminals are coupled to the common muting circuit input terminal. An electronic switch is connected between gr... | 09/08/1981 |
| 4288751 | Wave translating circuit A wave translating circuit includes a capacitor supplied with an input signal, a first resistor connected between a first potential point and the output of the capacitor, a second resistor connected between a second potential point and the output of the c... | 09/08/1981 |
| 4288820 | Time-axis picture-signal converter for facsimile and the like For a medium- or low-speed facsimile, a solid-state image sensor is now usable and scans each line on the sheet a plurality of times for a one-scan-line picture signal output to the circuit line. The sensor output, of high bit rate, is distributed alterna... | 09/08/1981 |
| 4286609 | Hot oil fingernail and cuticle treatment The invention provides a hot oil treatment for fingernails which involves a fingertip soak in a hot oil treatment bath for a period of three to five minutes. Then, the cuticle of the nail is pushed back. The oil treatment bath includes an emulsion formed ... | 09/01/1981 |
| 4287558 | Sampled data processing system having memory with areas alternately dedicated to data I/O and data processing A system for processing data received in the form of sample pulses has a memory with first and second major memory areas. A buffer register stores data temporarily to enable an interface between the timing of the system and of a sampled analog signal. A c... | 09/01/1981 |
| 4281333 | Ink-on-demand type ink-jet printer with coordinated variable size drops with variable charges An ink-jet printer uses droplets of conductive ink to print on a recording medium. The ink is in a chamber having a nozzle and a piezoelectric member attached to one wall of the chamber. The droplets are driven out of the nozzle in response to a driving p... | 07/28/1981 |
| 4280079 | Driving system for a plasma display panel Upon applying a discharge voltage between opposed electrodes of a plasma display panel, all electrodes other than a selected electrode are clamped at a fixed potential. To that end, a toggled voltage is supplied from a toggled voltage source and applied v... | 07/21/1981 |
| 4271504 | Frequency modulators for use in microwave links Frequency modulators for use in microwave link transmission systems include acoustic surface wave (ASW) oscillators. Each frequency modulator comprises two voltage control quadripole ASW oscillators. Control inputs of the two ASW oscillators receive modul... | 06/02/1981 |
| 4270081 | Constant-current circuit A constant-current circuit is especially well-suited for construction as a semiconductor integrated circuit, and it is stable over a wide range of variations in power potential. The constant-current circuit produces first to third biasing potentials. A fi... | 05/26/1981 |
| 4266825 | Mounts for attachment of devices to wheelchairs A mounting device of the described type may be viewed as being somewhat similar to a camera tripod, for example. Four extendible legs are adapted to be secured to the arms of a wheelchair. Two of the legs terminate in flat pad mounts which may be attached... | 05/12/1981 |
| 4267224 | Plastic material for simulating engraved metal plates A plastic material which is suitable for simulating engraving on metal has a substrate which is not deformed by the heat or pressure of a hot stamping process. A sheet or layer of thermoplastic material of limited thickness is laminated to the upper surfa... | 05/12/1981 |
| 4262633 | Means and methods of reclaiming and processing biodegradable waste into poultry products and humus-like substances An integrated waste reclamation and processing system converts biodegradable liquid and solid waste into poultry products (or the like) and humus-like substances. The system uses earthworms and poultry in a manner in which biodegradable waste is first com... | 04/21/1981 |
| 4261799 | Electrolytic process for generating erasable pictures on a solid substrate An electrolytic process generates erasable pictures on a solid electrolyte substrate to electrically record data without consumption of energy. The substrate is electrically erasable at will, and then is capable to record data again, and usable as well in... | 04/14/1981 |
| 4261292 | Milking installation for animals According to a characteristic feature of the present invention, the conve moves in an alternating fashion, and the milking operation takes place over two outward and two inward journeys. During the first outward journey, the sheep join the conveyor and r... | 04/14/1981 |
| 4262311 | Device for automatically returning sub-scanning carriage of facsimile apparatus According to the present invention, there is provided an automatic carriage-returning device for a facsimile apparatus comprising a rotary drum for performing the main scanning, a carriage for performing the sub-scanning along the axis of the drum, a belt... | 04/14/1981 |
| 4257434 | Heated hair curling brush A heated hair curling brush having a single tubular heating surface and a plurality of comb rings. The comb rings are placed over the heating element. Locking projections on the inner periphery of the comb rings fit into apertures in the surface of the he... | 03/24/1981 |
| 4256927 | Space division switching system for communication networks using optical signal frequencies According to a feature of this invention, there is provided a space-division and control system for a network operating with space-division switching of information modulating optical carrier frequencies, wherein the switches are arranged between a plural... | 03/17/1981 |
| 4255210 | Method for manufacturing a read-only memory device A read only-memory (ROM) is manufactured by a process which produces memories having customized codes from partially completed semiconductor chips. The chips are manufactured to a step where a matrix of apertures or windows are formed in an oxide layer at... | 03/10/1981 |
| 4253341 | Water meter comprising a ferromagnetic magnetoresistor coupled to a rotatable permanent magnet A water meter eliminates the usual conversion gear trains by using a permanent magnet which rotates in proportion to the volume of water to be measured. A magnetic field sensor, comprising a ferromagnetic magnetoresistor, produces a sensor signal which va... | 03/03/1981 |
| 4251836 | System for broadcasting facsimile signals A system for broadcasting data makes it possible to broadcast facsimile d toward a plurality of telecopying apparatuses, using an asynchronous broadcasting network. To each telecopying device there is joined a reception juncture device which develops a g... | 02/17/1981 |
| 4250354 | Telephone day count traffic observing and data accumulating equipment Meters accumulate peg count signals occurring in an observed telephone system. These signals are subtotaled on a daily basis, and totaled on a weekly or similar basis, for the seven-day period (for example) immediately following an initial start or reset.... | 02/10/1981 |
| 4249684 | Removably anchored box The invention provides an easily transportable, general purpose box which may be carried about by hand and then anchored to rails and locked in place. Once the lid is locked on the box, no one without a key can move the box from the anchor rails. The inve... | 02/10/1981 |
| 4247787 | Power switching apparatus This invention relates to the arrangement of a switching network intended to be used within an electrical utility station switchyard, which improves the security of power delivery to various loads while at the same time allowing a reduction in the number ... | 01/27/1981 |
| 4245779 | System for increasing heating efficiency A conventional forced air furnace is provided with a source of outside air for use in combustion. The amount of outside air admitted to the furnace and the amount of heated air lost through the chimney are regulated by simultaneously operable dampers sync... | 01/20/1981 |
