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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 4832213 | Baby bottle A baby bottle employs a curved shape along its length and a beveled top to facilitate drinking therefrom.... | 05/23/1989 |
| 4793092 | Fly trap A fly trap comprises a funnel housed in a container which guides flies from a portal in the container to the container interior wherein they are unable to wend their way back out.... | 12/27/1988 |
| 4712820 | Document carrier A carrier for conveniently storing, transporting and viewing documents, such as blueprints, is provided through two durable, pliable flaps affixed to one another at one end, between which the documents are placed. The bottom flap is longer than the top fl... | 12/15/1987 |
| 4685149 | Meteor scatter burst communication system The specification discloses a meteor burst communication system including at least two spaced apart master stations, in association with a plurality of groups of remote stations spaced at locations remote from the master stations, with each group being as... | 08/04/1987 |
| 4674877 | Opto-electronic color sensor An automatic digital light source adjustment procedure is disclosed wherein a computer calculates a correction factor for each of a plurality of light sources and adjusts the light sources such that each of the light sources meets an optimum performance c... | 06/23/1987 |
| 4651158 | DME morse code identity decoder A multichannel DME ranging circuit is described which is capable of simultaneous multistation operation. A microprocessor is coupled to control associated peripheral devices and the receiver/transmitter of a DME to produce a multiplexing for receiving fre... | 03/17/1987 |
| 4642639 | Multichannel DME ranging system A multichannel DME ranging circuit is described which is capable of simultaneous multistation operation. A microprocessor is coupled to control associated peripheral devices and the receiver/transmitter of a DME to produce a multiplexing for receiving fre... | 02/10/1987 |
| 4555789 | Equalizer circuit suitable for adaptive use with fiber optics An equalizer circuit wherein the equalized signal is at the output of a summing network; one input to the summing network is the signal to be equalized, and the other input is from a feedback network. The output of the summing network serves as an input t... | 11/26/1985 |
| 4549283 | Digital time delay circuit with high speed and large delay capacity A delay circuit including an even number of memory devices, for example two, reading from one memory device, while writing to the other. Sequences of bit addresses are generated for writing and reading, with an offset between the sequences. For the case o... | 10/22/1985 |
| 4538283 | Adaptive equalizer suitable for use with fiber optics A circuit for adaptively equalizing a digital signal to compensate for distortion introduced by a transmission medium. The circuit includes a first feedback path for modifying the input signal which is to be equalized to an extent controlled by a control ... | 08/27/1985 |
| 4528697 | Broadband quadrature phase modulator for control loop error generation in an IF combiner Circuitry for use in an IF combiner, where main and diversity receiver path signals are combined. The circuitry generates an error signal for the purpose of controlling the phase of one of these signals by deriving a broad-band phase-modulated feedback pa... | 07/09/1985 |
| 4513383 | Separation of communication signals in an adaptive antenna array Method and apparatus are disclosed for separating radio frequency signals incident upon an array of antenna elements which has available from each of the elements an input signal capable of being processed by the method and apparatus. The processing inclu... | 04/23/1985 |
| 4507775 | Optical transmitter with light source and optical amplifier combination A transmitter for fiber optics communication having a solid state light source device biased to emit light and a solid state optical amplifier device positioned adjacent the source device to receive the emitted light and amplify it. A modulation current i... | 03/26/1985 |
| 4503562 | Maintaining frequency accuracy in single sideband repeaters A system for maintaining an accurate frequency source in a single sideband repeater employs an ultra stable station control reference (SCR) frequency generator. A first frequency synthesizer for a local oscillator of the repeater phase locks to the output... | 03/05/1985 |
| 4475109 | Inflatable antenna An inflatable antenna for use with a buoy at sea is disclosed. Webs in the inflatable compartment of the antenna have parts metallized to form the feed portions of the radiating elements. Areas of the top inner surface of the inflatable compartment are me... | 10/02/1984 |
| 4473816 | Communications signal bypass around power line transformer A circuit for bi-directionally bypassing a delta-wye transformer with a balanced phase-to-neutral power line communications signal, using passive components. The circuit includes a set of three capacitors connected in a wye configuration, each having one ... | 09/25/1984 |
| 4473817 | Coupling power line communications signals around distribution transformers A circuit is described for bi-directionally coupling a communication signal around a distribution transformer. The circuit includes a single-phase coupling transformer with a primary to secondary voltage ratio approximately equal to that of the distributi... | 09/25/1984 |
| 4472787 | System for transferring words on a bus with capability to intermix first attempts and retrys A system is disclosed for transferring words from an input source to a computer bus which can issue an acknowledge or a negative acknowledge signal. The system includes registers for storing the words to be transferred. It further includes control circuit... | 09/18/1984 |
| 4467293 | Ferrite type directional coupler A directional coupler with a first and second transformer, having their primary windings connected in series, provides a sample of the current flow through the series connected primary windings. A third transformer provides a voltage sample of the voltage... | 08/21/1984 |
| 4459546 | Electronic kilowatthour meter An electronic meter is disclosed, for measuring functions such as power and energy of an alternating current and voltage. For measuring electrical energy, the meter includes an analog integrator for computing the integral of the voltage and of the current... | 07/10/1984 |
| 4458236 | Communications signal coupling around wye/delta power transformation A circuit is disclosed for coupling a power line communications signal between two three-phase power lines, with the signal being transmitted in a balanced phase-to-neutral mode on the first line and in a phase-to-phase mode on the second line. The circui... | 07/03/1984 |
| 4455729 | Fiber optic connector tool A service tool is provided for a fiber optic connection system in which a pair of facing fiber optic connector ends are collinearly aligned by a tubular alignment insert therearound, all within an outer concentric tubular connection sleeve. After withdraw... | 06/26/1984 |
| 4443660 | System and method for encrypting a voice signal A system and method are disclosed for encrypting a voice signal. The input signal is filtered to provide a signal in a first path with components in a higher frequency band and a signal in a second path with components in a lower frequency band. Analog-to... | 04/17/1984 |
| 4439835 | Apparatus for and method of generation of ripple carry signals in conjunction with logical adding circuitry A logical AND and logical OR gate are utilized in conjunction with two signals forming bits to be added for ascertaining the value of generate and propagate signals. The generate signal is passed to the output whenever the carry input is a logic zero and ... | 03/27/1984 |
| 4435737 | Low cost capacitive accelerometer A capacitive transducer is disclosed which provides a measurement of acceleration. The transducer includes a semiconductor element having a mass ring suspended from an elastic diaphragm which is retained by a support. The mass ring is formed to have oppos... | 03/06/1984 |
| 4435029 | Slide lock handle A locking handle is provided for mounting a circuit card module to a card cage or rack. The module is released from the cage by pulling the handle to flex and bow the latter to a release position disengaging the cage to allow removal of the module. Upon r... | 03/06/1984 |
| 4434485 | Drop and insert channel bank with reduced channel units A drop and insert channel bank is provided for receiving data from and inserting data onto a multichannel digital transmission line, such as a microwave radio link, between end terminals. The channel bank has a plurality of single channel units which shar... | 02/28/1984 |
| 4434474 | Single pin time-sharing for serially inputting and outputting data from state machine register apparatus Synchronously clocked gating apparatus is illustrated for time multiplexing signals into and out of a register simultaneously whereby a single pin can be utilized for the two sets of data transfer rather than the two pins required in the prior art.... | 02/28/1984 |
| 4433412 | Method and apparatus for testing and verifying the operability of register based state machine apparatus When a state machine such as a computer is inoperative, the flow of data can occur in so many different ways that it is at times difficult to ascertain the portions of the state machine that are causing the problems. Whether the problems are caused by ori... | 02/21/1984 |
| 4433284 | Power line communications bypass around delta-wye transformer Circuits for bi-directionally bypassing a delta-wye transformer with a balanced phase-to-neutral power line communication signal, using passive components. The circuits include a set of three capacitors connected in a wye configuration, each having one si... | 02/21/1984 |
| 4431974 | Easily tuned IMPATT diode module An improved microwave circuit is disclosed for enabling impedance tuning for power coupling in IMPATT diode and other similar oscillator and amplifier circuits. An electrically conductive support plate forming a ground plane is machined to form a channel ... | 02/14/1984 |
| 4425704 | Extraction tool for electrical connector latch An extraction tool is provided for removing a locking latch from a snap-in socket of an electrical connector housing. The tool has a fork-like portion insertable into the socket for spreading the latter, and has an extendable hook portion for engaging and... | 01/17/1984 |
| 4426630 | Electronically tunable band reject filter An electronically tunable band reject filter rejects only frequencies of a signal that are in the reject band around its center frequency. The band reject filter includes an input directional coupler for sampling of the signal that is to be filtered and p... | 01/17/1984 |
| 4425623 | Lookahead carry circuit apparatus Lookahead carry circuitry is provided for use with the consecutive bit stages of a digital adder whereby the computational throughput of an arithmetic logic unit can be increased (in other words reduced in time of operation). This is accomplished by reduc... | 01/10/1984 |
| 4424460 | Apparatus and method for providing a logical exclusive OR/exclusive NOR function Circuits are illustrated using CMOS design techniques for incorporating N and P channel transistors into a circuit to obtain the functions of exclusive OR and exclusive NOR signal generation. This is accomplished by utilizing a given logic value signal as... | 01/03/1984 |
| 4422139 | Transformer coupled up-down converter A transformer coupled DC-to-DC converter provides a regulated output with only one active switch. The converter includes a switch, a diode and an inductor coupled to the primary of a transformer in a way which provides symmetry to the transformer as the d... | 12/20/1983 |
| 4419832 | Aircraft attitude display instrument An aircraft attitude indicator employing a gyro driven tape display. The tape takes the form of a closed loop stretched about a carrier mechanism, and includes a viewable horizon indication. The tape further includes a set of perforations which, preferabl... | 12/13/1983 |
| 4419633 | Phase lock loop A variable voltage control oscillator can have its output frequency varied over a wide range of frequencies with a high degree of accuracy at each frequency and a rapid tune time is achieved when there is a reference signal source that runs at a constant ... | 12/06/1983 |
| 4417316 | Digital binary increment circuit apparatus A circuit is illustrated for performing an increment function wherein a savings of parts is obtained by using an inverter for two different functions thereby decreasing land area required for implementing the integrated circuit on a chip.... | 11/22/1983 |
| 4417315 | Method and apparatus for incrementing a digital word A circuit is presented designed specifically for use in complementary symmetry design techniques such as CMOS/SOS wherein inverting gate types are a preferred design. This design is obtained with a minimum of delay by changing gate types in the ripple car... | 11/22/1983 |
