...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 |
| 8092071 | External vibratory grout consolidator for vertically reinforced concrete masonry A vibratory grout consolidator device for eliminating gaps and voids in grout by attaching to reinforcing bars extending within masonry block walls and encapsulated within the grout. The device includes a clamp including a bar sleeve having a first part attached to ... | 01/10/2012 |
| 7153058 | Apparatus for finishing concrete A vibratory screed apparatus includes a vibrator, a screed, and a coupler for coupling the vibrator to the screed. The vibratory screed apparatus may be provided as a concrete-finishing kit which is capable of being assembled and disassembled in the field. A number ... | 12/26/2006 |
| 7063144 | Acoustic well recovery method and device An electro acoustic device and related method for increasing the production capacity of wells that contains oil, gas and/or water is disclosed. The electro acoustic device is submerged in the well producing zone, and includes an electric generator, one or more elect... | 06/20/2006 |
| 7059403 | Electroacoustic method and device for stimulation of mass transfer processes for enhanced well recovery An electro acoustic device and related method increase production capacity of wells that contain oil, gas and/or water. The electro acoustic device produces vibrations stimulating occurrences of mass transfer processes within the well. The resultant acoustic flow ge... | 06/13/2006 |
| 6973972 | Method for reduction of scale during oil and gas production and apparatus for practicing same Scaling may be reduced during oil and gas production using a device having a sound transducer. The device can be used downhole and functions independently of an external power supply. Use of the device allows for the reduction or elimination of anti-scaling chemical... | 12/13/2005 |
| 6960013 | High frequency immersion vibrator comprising a cooled electronic frequency converter An electronic frequency converter is used with a high frequency immersion vibrator in order to compact concrete. The frequency converter comprises a cooling circuit containing a cooling medium; a first heat exchanger which is integrated into said cooling circuit and... | 11/01/2005 |
| 6958047 | Chest vibrating device A chest vibrating device including a frame, shoulder pads, chest pad and back pad. The frame being configured to fit around an upper body of a user. The shoulder pads extending from the frame to rest the frame on shoulders of the user. The chest pad extending from a... | 10/25/2005 |
| 6733169 | Poker vibrator with frequency transformer The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, an electric ... | 05/11/2004 |
| 6619832 | Poker vibrator with frequency converter The invention relates to a poker vibrator for compressing concrete. The poker vibrator comprises a vibrating housing that accommodates an unbalanced mass and an electromotor, an insulating plastic tube that links the vibrating housing to a switch cover, a... | 09/16/2003 |
| 6543926 | Adapter for power tools An adapter for coupling to a power tool having a motor with about 2000 W power, the adapter including a transmission for coupling the motor of the power tool to a poker, so as to convert the power tool to the power supply for a concrete vibrator, and a me... | 04/08/2003 |
| 6224826 | Sterilizing method and apparatus A method and apparatus for sterilizing water containing pathogen protozoa having shells in a simple manner without negative influencing the environment is disclosed. Ultrasonic waves are applied to drinking water to form fine cavitation bubbles which are ... | 05/01/2001 |
| 6015225 | Vibration input to moving aqueous cementitious slurry The method of treating an aqueous, cementitious slurry, to enhance fluidity, that includes providing a container for the slurry and effecting movement of the slurry via an impeller, in the container, and locating at least one vibrator in the interior of t... | 01/18/2000 |
| 5829874 | Backpack mounted pivoting motor for concrete finishing A portable concrete finishing system comprising a backpack-borne, pivoting engine that powers a selected tool. A rigid frame supporting a four cycle motor is connected to the tool by a flexible power shaft. A removable vibration absorption system isolates... | 11/03/1998 |
| 5725304 | Battery concrete vibrator A concrete vibrator 10 having a direct current motor 3 and a battery pack 19 mounted in a handle housing 17. The battery pack 19 is attached to a hook 75 provided in an opening of the handle housing 17, and a battery cover 80 is attached to completely cov... | 03/10/1998 |
| 5716131 | Portable four cycle backpack pendulous vibrator A portable concrete vibrator system comprising a backpack-borne four cycle engine that powers a pendulous vibrator. The backpack comprises a rigid frame mounting a four cycle motor that is connected to the vibrator by a flex-shaft and isolated therefrom b... | 02/10/1998 |
| 5556199 | Vibrator with covering and related method A vibrator for immersion in wet concrete includes a relatively rigid shell with an internal vibrating mechanism. A cover is provided on the shell formed of a material softer than the shell whereby to lessen the effects of the impact of the shell on any en... | 09/17/1996 |
| 5484202 | Aerosol containment system A sonicator apparatus having a signal generator for generating high frequency sound waves to a convertor which transforms electrical energy into mechanical energy in the form of oscillations to a horn having a probe immersed in a sample disposed in a samp... | 01/16/1996 |
| 5466570 | Sonic micro reaction zones in silver halide emulsion precipitation process The present invention is a method for producing a silver halide emulsion. The precipitation of the emulsion is carried out away from the rotary agitator. The reactant solutions are introduced into the reactor very close to the tip of one or more ultrasoni... | 11/14/1995 |
| 5449493 | Stirring device Piezoelectric elements are attached to both sides of a flexible metal thin plate, thus forming a bimorph-type piezoelectric vibrator. A portion of the metal thin plate is extended to form a stirring blade. A suitable weight is attached to a part of the me... | 09/12/1995 |
| 5403395 | Reel for applying topical substances to base products An arrangement for the application of topical substances to base products. A rotatable star-shaped reel structure is rotated, in which a flowable base product is tumbled while being coated with the topical substance so as to ensure an appropriate uniform ... | 04/04/1995 |
| 5032027 | Ultrasonic fluid processing method An ultrasonic fluid processing method is provided for cavitation and processing a first fluid with a second fluid in a sonication or cavitation zone. The method is useful for preparation of emulsions for chemical and pharmaceutical applications, to gasify... | 07/16/1991 |
| 5026167 | Ultrasonic fluid processing system An ultrasonic fluid processing system is provided for cavitation and processing a first fluid with a second fluid in a sonication or cavitation zone. The system, in a preferred embodiment, includes a converter with a power supply, a vibration means connec... | 06/25/1991 |
| 4913234 | Fluid driven screw type sonic oscillator-amplifier system for use in freeing a stuck pipe A Moyno type oscillator having a screw shaped rotor and stator is lowered down by means of a cable within a section of drill pile which has become stuck in a bore hole. The rotor of the oscillator is rotatably driven by means of a liquid stream at a speed... | 04/03/1990 |
| 4824258 | Fluid driven screw type (moyno) sonic oscillator system A screw shaped rotor is freely mounted for rolling rotation in a mating screw shaped stator which is mounted in a housing. The rotor is rotatably driven by means of a fluid stream to generate sonic energy in the housing with a lateral mode of vibration at... | 04/25/1989 |
| 4752137 | Poker vibrator A poker vibrator includes an extra weight which is mounted on the hose accommodating the power supply of the vibrator of the poker vibrator assembly connected to the end of the hose. The extra weight is mounted on the hose in the vicinity of the casing. t... | 06/21/1988 |
| 4682896 | Device for generating vibrations The invention provides a device for generating mechanical vibrations, preferably a sound-type vibrator having a cylindrical housing with a coaxial stationary shaft, on which a sleeve-shaped working body is suspended, driven by a compressed fluid to a vibr... | 07/28/1987 |
| 4293231 | Bearingless vibrator A pneumatic vibrator is provided which operates without the use of bearings. The vibrator includes a generally cylindrically formed housing and a cylindrical shaped rotor contained within the housing. The housing includes an inlet for receiving pressurize... | 10/06/1981 |
| 4221521 | Apparatus for loosening frozen coal in hopper cars Frozen lumps of coal in conventional hopper cars are loosened by lowering an assembly of vertically oriented probe elements into the car while simultaneously vibrating the assembly. The vibratory structure is mounted on a gantry arrangement which also sup... | 09/09/1980 |