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...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!

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Assignee: Hitachi Industries Co., Ltd.


Location: Tokyo, JP
No. of patents: 15

NumberTitleIssue Date
7882632Industrial pump and manufacturing method thereof
In an industrial pump, a bearing provided in a pump main body rotatably supports both end sides of a rotating shaft to which an impeller is attached. A shaft seal apparatus is arranged in adjacent to the bearing. The shaft seal apparatus is cooled by a cooling water...
02/08/2011
7559742Inlet casing and suction passage structure
A prewhirl type inlet casing for inducing a spiral stream in fluid has a suction passage arranged on an upstream side, being orthogonal to a rotary shaft of fluid machinery, and an internal passage connected to the suction passage, the internal passage being formed ...
07/14/2009
7341441Nanoprint equipment and method of making fine structure
Provided is a nanoprint apparatus in which a substrate and a mold formed on its surface with fine concavities and convexities are heated and pressed with each other through the intermediary of a buffer member interposed therebetwen, including a mechanism for success...
03/11/2008
7338255Turbo-type fluid machine and a stepped seal apparatus to be used therein
A turbo-type fluid machine comprises a mouth ring part provided between a shroud of an impeller and a pump casing and having a seal function. The mouth ring part comprises an impeller ring on a side of the shroud of the impeller and a casing ring provided on a side ...
03/04/2008
7210895Turbo compressor and method of operating the turbo compressor
A turbo-compressor being driven by an electric motor has an inlet guide vane and a blow-off valve. The surge limit line of the compressor is amended depending upon seasonal changes of temperature and pressure of a working gas to be sucked into the compressor. Upon t...
05/01/2007
7198457Single-shaft multistage pump
A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft on which impellers are disposed at multiple stages, bearings and for supporting the rotary shaft, and a balance device a...
04/03/2007
7128523Drainage pump and underwater bearing unit
A drainage pump has a pump part in which blades mounted on a rotary shaft are arranged in a pump casing and an underwater bearing unit which uses pumped water mixed with hard particles as a lubricant and has a sliding bearing for journaling the rotary shaft. A porti...
10/31/2006
7111652Mixed liquid manufacturing apparatus
A mixed liquid manufacturing apparatus comprises: an information input unit, in which information of an object, to which a mixed liquid is offered, is input; a material storage system that stores a plurality of materials for a mixed liquid; a product information sys...
09/26/2006
7052250Reciprocating compressor
A reciprocating compressor, being small-sized and compact, for compressing hydrogen gas to be used in a fuel-cell car, has a crankshaft, to which an end of a connecting rod is connected. The other end of the connecting rod is connected to a crosshead. To the crosshe...
05/30/2006
7044724Screw compressor and method of manufacturing rotors thereof
A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetwee...
05/16/2006
7040845Screw compressor and method of manufacturing rotors thereof
A screw compressor comprises a casing, and a male and a female rotor formed with axially twisted screw grooves and accommodated in the casing, the both rotors being rotated by timing gears fixed to the respective rotors while a desired minute gap is kept therebetwee...
05/09/2006
6991324Solution injector head, functional layer forming apparatus and liquid crystal display
In a solution emitting head for emitting a solution through an outlet, having a main body including a cavity, a cover attached to the main body in such a manner that the cover covers the cavity to form a chamber so that the solution is stored in the chamber temporar...
01/31/2006
6922229Manufacturing method of liquid crystal display apparatus and substrate assembling apparatus
One substrate is supported by an attracting and adsorbing operation and by an adhesive means provided inside a pressurizing plate; the other of substrate, on which a liquid crystal agent is dropped, is supported on a table by an attracting and adsorbing operation or...
07/26/2005
6793456Turbo-compressor and capacity control method thereof
A turbo-compressor comprises a compressor main body for compressing an operation fluid, an inlet guide vane apparatus being provided on a suction side of the compressor main body and having guide vanes, and a blow-off valve being provided in a discharge said compres...
09/21/2004
6752019Vibration testing apparatus and vibration testing method
In a hybrid vibration experiment of the structure, while shaking an actual model simulating a portion of the structure, vibration response analysis of a numerical model simulates the remaining portions of the structure using a computer. Loading members are provided ...
06/22/2004
 
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