Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 4672602 | Control and routing system A telemetry system connects with a telephone system for communication of data via subscriber telephone lines to a provider of data services. Connection of multiplexing circuitry to a set of subscriber lines is accomplished at a main distribution frame by ... | 06/09/1987 |
| 4665516 | Information transport system employing telephone lines A data transport system connects with a telephone system for communication of data via subscriber telephone lines to a provider of data services. Connection of multiplexing circuitry to a set of subscriber lines is accomplished at a main distribution fram... | 05/12/1987 |
| 4647882 | Miniature microwave guide A miniature microwave guide is provided in a substrate made of successive superimposed layers of conductive and/or dielectric materials. Probes are provided at the extreme ends of the guide for injecting and extracting signals.... | 03/03/1987 |
| 4647878 | Coaxial shielded directional microwave coupler A substrate for mounting electronic devices is provided with a capacitive coupler as an interconnecting means. The coupler comprises two partially co-extensive conductors surrounded by a shield. The substrate is made from a plurality of superimposed layer... | 03/03/1987 |
| 4646342 | Test trunk access controller A test trunk access controller includes a test trunk interface controller accessed by a subscriber line assigned to a service provider, or other remote metering facility, and a test trunk interface device inter-connecting the test trunk controller with th... | 02/24/1987 |
| 4644348 | Apparatus for providing masterless collision detection An apparatus for providing masterless collision detection in a communication network includes a distinct data transmission bus and distinct collision detection reference bus. A voltage on the reference bus is monitored by each element to ascertain the exi... | 02/17/1987 |
| 4641301 | Telecommunication switching system and priority arrangement used therein A telecommunication switching system includes a number of control circuits each of which is common to a plurality of line circuits and is coupled through time division multiplex links with two processor controlled interface circuits which are further coup... | 02/03/1987 |
| 4639910 | Apparatus for establishing communication paths An apparatus for establishing a plurality of communication paths includes a plurality of ports each having different data rates associated therewith and a means for establishing simultaneous paths among the plurality of ports according to instruction sign... | 01/27/1987 |
| 4638474 | Communication system A communication system includes a digital switching network, a first apparatus for establishing communication paths interconnected thereto via a terminal element and a second apparatus for establishing communication paths interconnected directly thereto. ... | 01/20/1987 |
| 4638311 | Apparatus for providing masterless collision detection An apparatus for providing masterless collision detection in a communication network includes a distinct data transmission bus and distinct collision detection reference bus. A voltage on the reference bus is monitored by each element to ascertain the exi... | 01/20/1987 |
| 4638124 | Key telephone system with distributed control A system is presented for accessing a plurality of central office lines, PBX, etc. by a plurality of stations and for exchanging signals between the stations. Each station is provided with a self-sufficient microprocessor which controls all the functions ... | 01/20/1987 |
| 4633227 | Programmable keyboard for a typewriter or similar article There is disclosed a programmable keyboard apparatus for allowing a user to select any one of a predetermined number of different keyboard arrangements such as the Qwerty or the Dvorak arrangements. The keyboard contains a plurality of fixed input keys ar... | 12/30/1986 |
| 4608460 | Comprehensive automatic directory assistance apparatus and method thereof A comprehensive automatic directory assistance apparatus includes a means for receiving information from a caller via a specified number of DTMF signals, means for identifying another subscriber from the signals, means for vocally conveying information re... | 08/26/1986 |
| 4602362 | Information transport system A system for transporting data between equipment connected to a subscriber telephone line and a provider of services connects with subscriber telephone lines at a central office of a telephone company. The system includes a set of first multiplexers which... | 07/22/1986 |
| 4602130 | Dual voltage source feed circuit configuration for a telephone line circuit A dual voltage source feed circuit arrangement for a two-wire telephone line circuit includes an auxiliary voltage source placed across the two-wire line and switchably controlled to connect the voltage source across the line to thereby supply an addition... | 07/22/1986 |
| 4601029 | Communication switching system A time-division multiplexed switching system is disclosed with a transmit, and a receive bus. Communication ports are provided for transfer and conversion of signals between the lines and the buses. A control microprocessor is used for assigning appropria... | 07/15/1986 |
| 4598173 | Interface circuit for a subscriber line circuit An interface circuit for a subscriber line circuit employs a controllable amplifier including a switching converter. The switching converter includes a capacitor coupled across a two-wire subscriber line and supplies an auxiliary voltage to the line. The ... | 07/01/1986 |
| 4595844 | CMOS high current output driver A driver circuit is disclosed which is capable of supplying current at a relatively low range for a relatively large supply voltage range. The driver comprises a plurality of output stages designed to operate in parallel. At a low power supply level all t... | 06/17/1986 |
| 4591745 | Power-on reset pulse generator A circuit for generating a pulse is disclosed for resetting certain multi-state elements of an electronic system after the power supply of the system has been activated and said elements have settled. The circuit is composed of an R-C network and a latch.... | 05/27/1986 |
| 4588864 | Small key telephone system An intercommunication system makes use of existing quad wiring to provide intercom communication between the subsets of the system, as well as communication with a standard central office, or an "outside line". Each subset is provided with a control seque... | 05/13/1986 |
| 4296323 | Secondary emission mass spectrometer mechanism to be used with other instrumentation There is disclosed a secondary ion mass spectrometer to be used with other spectro analysis mechanisms where the sample holder is fixed in a main vacuum chamber having a secondary vacuum chamber communicating with the main chamber with a vacuum seal betwe... | 10/20/1981 |
| 4283934 | Pyrometric temperature measurements in flameless atomic absorption spectroscopy A method and circuitry for maintaining the precise temperature of atomic absorption spectroscopy graphite specimen tubes over wide temperature ranges independently of the tube emission factor. The infrared radiation of a heated tube is measured by a detec... | 08/18/1981 |
| 4268478 | Method and apparatus for generating and transferring a gaseous test sample Method and apparatus for generating a gaseous test sample from a liquid sample and for transferring this test sample into a measuring cuvette of an atomic absorption spectrometer, in which an inert gas flow is directed through a sample vessel and into a m... | 05/19/1981 |
| 4245210 | Thick film resistor element and method of fabricating A thick film resistor element capable of dissipating relatively large amounts of microwave energy comprises several distinct layers of resistive material overlying an electrically insulating thermally conducting substrate. The final dimensions of the elem... | 01/13/1981 |
| 4198640 | Reflectarray antenna A reflectarray antenna includes a primary feed that radiates a primary wave to a plurality of radiators where the wave is absorbed. A portion of the absorbed wave is resolved into first and second mutually orthogonal components at first and second feed po... | 04/15/1980 |
| 4163974 | Antenna feed system Eight radiators, disposed along a line, are coupled to a radar via a Butler matrix. In response to a transmitted signal from the radar, inverse transform signals that have amplitudes representative of values of a sinusoid in an angular range of zero radia... | 08/07/1979 |
