Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 5208976 | Apparatus and method for assembling circuit structures Apparatus and method for assembling circuit structures in an assembly line process. The apparatus responds to a set of program instructions by selecting components in a predefined sequence from a plurality of components and aligns each selected component ... | 05/11/1993 |
| 5125024 | Voice response unit A voice response unit for transmitting voice prompt messages to customers and for receiving messages generated by customers in response to the voice prompt message. The unit has a speech recognizer for recognizing customer commands used to control operati... | 06/23/1992 |
| 5088601 | Circuit board shipping carton A carton for use in shipping circuit boards. The carton has a pair of side members separated by top and bottom members configured to surround a circuit board with a closed end opposite an open end for receiving the circuit board. The closed end consists o... | 02/18/1992 |
| 5051816 | Pixel generator test set Apparatus and method for testing video controller devices used with a monitor terminal to generate display configurations on the terminal monitor. The disclosed apparatus and method is embodied in test apparatus arranged to prerecord a count of pixel tran... | 09/24/1991 |
| 5044990 | RF coaxial connector A connector assembly for interconnecting conventional RF equipment with a connector having a cylindrical ground conductor with a signal conductor male member insulated from and extending outward from the cylindrical ground conductor. The assembly comprise... | 09/03/1991 |
| 5033083 | Telephone line switch apparatus A telephone line switch actuating mechanism includes two identical parts, each having a portion which makes up a plunger, while the remaining portion is pivotally mounted for enabling the two parts to be assembled in an opposing relationship to each other... | 07/16/1991 |
| 5024415 | Tilt and swivel apparatus for a display monitor Apparatus is disclosed for mounting a display monitor on a base and for permitting and limiting the extent of tilting and rotating of the monitor. The apparatus is made up of a spherical projection extending from the bottom of the monitor and a cavity for... | 06/18/1991 |
| 5017986 | Optical device mounting apparatus Apparatus for mounting and interconnecting optical devices. The apparatus comprises generally rectangular members constructed of optical transparent material formed with recesses having sides positioned at angles with respect to a line perpendicular to a ... | 05/21/1991 |
| 5017815 | Sense amplifier with selective pull up A sense amplifier includes two cross-coupled pull down field effect transistors, each connected to a respective pull up field effect transistor and to respective bit lines for receiving sensed signals from a memory cell. During a sensing operation, two in... | 05/21/1991 |
| 5011418 | Computer terminal cover assembly A quick release backplane or cover assembly for use with a computer terminal to shield feature card slots of the computer terminal card cage. The assembly comprises a ground strap member releasably secured to the computer terminal card cage with filler me... | 04/30/1991 |
| 4511201 | Module mounting assembly Apparatus for mounting an integrated circuit module (2) on a printed wiring circuit board (3). The apparatus assembly (1) comprises a ring member (13) for use in assembling a generally rectangular insulating member (11) having a plurality of electrical co... | 04/16/1985 |
| 4460236 | Test apparatus for electrical circuit boards Test apparatus for testing the circuits carried by an electrical circuit board (11) through receptacles (10) for mounting electrical components such as dual inline circuit packs (DIPs) (20). The two rows of contacts (16) for receiving the terminals (19) o... | 07/17/1984 |
| 4451704 | Switching system auxiliary line transfer circuit A line circuit for use in coupling lines with an automatic call distributing switching system. The line circuit (1, 2) responds to a calling customer seizure of a line by connecting the seized line through the switching system (3) to attendant positions 3... | 05/29/1984 |
| 4410223 | Module mounting assembly Apparatus for mounting an integrated circuit module (2) on a printed wiring circuit board (3). The apparatus assembly (1) comprises electrical conducting members (10) for interconnecting the module with the circuit board and an insulating base (11) transv... | 10/18/1983 |
| 4384266 | Fuse apparatus An alarm indicator fuse (1) for large current and high temperature applications. The fuse assembly comprises apparatus (16, 121, 162) slidably engaging alarm indicator apparatus (14, 15) coupled between one conducting member (12) and a fuse element (13) e... | 05/17/1983 |
| 4322119 | Circuit module mounting assembly Apparatus for mounting a circuit module on a circuit board. The mounting apparatus comprises an insulating base member (10,20) mounting electrical conducting members (102,202) each having a portion (1020,2022) positioned in a plane along side of and paral... | 03/30/1982 |
| 3967074 | Telephone station identification system A telephone station identification system arranged to identify directory numbers assigned a plurality of telephone stations concurrently served by telephone offices of a switching system. Groups of telephone office lines are asynchronously scanned to dete... | 06/29/1976 |
| 3950619 | Message charge control telephone answering device A call answering arrangement for enabling a calling subscriber to control the charging of a telephone call directed to a called telephone line equipped with an automatic telephone answering device. Incoming call signals appearing on the telephone line ena... | 04/13/1976 |
| 3937908 | Network path test circuit A network path test circuit for testing call connections established through the switch network of a telephone toll switching office. Common control equipment of the telephone toll switching office momentarily applies a tone signal to the transmit and rec... | 02/10/1976 |
| 3934090 | Telephone message timing system A timing arrangement for use with a telephone switching system equipped with automatic message accounting equipment to adjust call charging times to compensate for delays in obtaining access to the automatic message accounting equipment. Timing circuitry ... | 01/20/1976 |
