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Patent No. 6637447

Beerbrella

A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.

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Class 327/189 - Storage diode (e.g., step recovery, etc.)


Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter including a two-terminal unidirectionally
No. of patents: 8
Last issue date: 09/04/2007


NumberTitleIssue Date
7265598Narrow ultra wideband pulse generator
A circuitry for generating a narrow impulse including an input device coupled to a matching circuitry that is coupled to a step recovery diode (SRD). The input device is configured to receive a succession of digital input signals, each characterized by having high l...
09/04/2007
7199633Electric pulse generator and method for generating short electric pulses
A method for generating short electric pulses, comprising the steps of generating a control pulse, feeding the control pulse to a bipolar transistor, which subsequently emits an output signal with a steep switch-off side by exploiting the charge storage effect of th...
04/03/2007
6087871Pulse generating circuits using drift step recovery devices
A pulse generating circuit utilizes a drift step recovery transistor to apply power from a direct current power supply to a pulse forming network when a trigger pulse is applied thereto. The pulse forming network comprises a storage inductor connected in ...
07/11/2000
4115763Electrical switching system
An electrographic writing system including an electrographic writing head operatively connected to a switching system is disclosed. The electrographic writing head includes a plurality of electrically conducting styluses arranged to produce an electrostat...
09/19/1978
4070654Bipolar read-only memory
A bipolar read-only memory comprising a matrix circuit having selection input lines, digit output lines and Schottky barrier diodes connected between the selection input lines and the digit input lines according to information contained in the memory, a s...
01/24/1978
4060739Circuit arrangement for amplifying pulsed signals
A circuit arrangement for amplifying pulsed signals comprises a step recovery diode charged by signals from a signal source through a diode biased in forward direction, the step recovery diode being discharged by a current flowing in the reverse direction...
11/29/1977
4035670Transistor stored charge control using a recombination layer diode
The on-to-off switching time of a junction transistor is reduced by forward connecting a recombination layer diode between the base and collector of the transistor. Preferably, the diode comprises a semiconductor abrupt junction of the type having a relat...
07/12/1977
3983416Short pulse sequential waveform generator
A sequence of short pulses are produced from a single input pulse of longer duration by use of a plurality of step recovery diodes connected in shunt across a transmission line. The number of individual pulses produced in response to each applied longer p...
09/28/1976
 
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