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Class 307/145 - WITH CURRENT COLLECTION OR TRANSFER


Subclass of Class 307 - Electrical transmission or interconnection systems
Definition: Subject matter having a current collector or transfer device.
No. of patents: 17
Last issue date: 01/24/2012


NumberTitleIssue Date
8102083Atmospheric electrical generator with change of state
A mechanism to tap an electrical source which uses an aircraft (10) (preferably a lighter than air balloon) tethered by a conductive line (12). The conductive line (12) is extended/withdrawn by a winch motor (13, 14) to adjust the altitud...
01/24/2012
8102082Atmospheric static electricity collector
An antenna for the collection of atmospheric static electricity in which an electrically conductive hub is suspended from a balloon or blimp via a tether. The hub is either solid or uses a spoke/arm arrangement. A number of rods extend from the hub enhance the colle...
01/24/2012
7855476Atmospheric electrical generator
A mechanism to tap an electrical source which uses an aircraft (preferably a lighter than air balloon) tethered by a conductive line. The conductive line is extended/withdrawn by a winch motor to adjust the altitude of the aircraft. The conductive line is isolated f...
12/21/2010
7312686Split core sensing transformer
Separable toroidal segments reduce the size of a sensing transformer that can be installed on an electrical conductor while connected to a device. ...
12/25/2007
7221495Thin film precursor stack for MEMS manufacturing
This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ...
05/22/2007
7191269Method for multiple sensors to communicate on a uni-directional bus
The present invention provides a system of and a method for multiple transmitters to communicate data over a single uni-directional communication bus. In one form of the present invention, a data communication system using time-domain multiplexing includes a uni-dir...
03/13/2007
7164520Packaging for an interferometric modulator
A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul...
01/16/2007
7126738Visible spectrum modulator arrays
Light in the visible spectrum is modulated using an array of modulation elements, and control circuitry connected to the array for controlling each of the modulation elements independently, each of the modulation elements having a surface which is caused to exhibit ...
10/24/2006
6621183Supply of power to primary conductors
Apparatus for providing effective amounts of high-frequency AC power to a long primary trackway (1102), used for inductive power transfer includes transconductance-pi filters (1105) for deliberate mismatching; resulting in independence of current flow and...
09/16/2003
5917252Load control system
Lamps LP1-LP9 are connected in a matrix form. Control devices Tr1-Tr6 are installed on connecting wires of the lines and rows of the matrix used for connecting the lamps LP1-LP9, respectively. Each of the connecting wires L1-L3 on each line is connected t...
06/29/1999
5162678Temperature compensation control circuit for exponential gain function of an AGC amplifier
A temperature compensation control circuit to maintain a constant control gain in an AGC (automatic gain control) amplifier. The present invention compensates for the inherent temperature dependence without using any special processing or non-standard dev...
11/10/1992
4926063Square root digital-to-analog converter
A twenty four bit digital-to-analog converter comprising three eight bit digital-to-analog converters. The outputs of the two least significant converters are proportioned and summed together into one amplifier to form a sixteen bit converter. The most si...
05/15/1990
4445050Device for conversion of light power to electric power
This invention relates to a high efficiency device for the direct conversion of light power to electrical power. Present photocells for accomplishing this purpose are well known to the art and have a theoretical efficiency not exceeding about 20%. In prac...
04/24/1984
4386280Removable contactless transmission clamp assembly system
A method and apparatus for electrical transmission, wherein an electric current is applied to the primary winding of a mains transformer the secondary winding of which consists of at least one spiral, and a corresponding electric current is collected at t...
05/31/1983
4293889Device for grounding an elevator winder
A device for grounding an elevator winder including an electric motor controlled by a semiconductor switching element and a first rotary element coupled to the electric motor. A main rope is wound on the first rotary element and bearings are adapted to su...
10/06/1981
4287551Elevator traction machine
An elevator traction machine including a main rope, a traction sheave, a DC motor controlled by a thyristor Leonard system, a brake wheel, bearings of motor shaft and a machine beam. The motor shaft is grounded through first grounding circuit including a ...
09/01/1981
3981611Electrical interconnection circuitry from a rotating body to a relatively stationary body
In an electrical system requiring an electrical interconnection between a rotating body and a relatively stationary body, a circuit provides a highly reliable electrical interconnection between the bodies through the use of multiple rotary electrical conn...
09/21/1976
 
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