U.S. patents available from 1976 to present.
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...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 118/636 - Gravity flow of coating material


Subclass of Class 118 - Coating apparatus
Definition: Apparatus in which the additional or supplemental force
No. of patents: 21
Last issue date: 12/28/2004


NumberTitleIssue Date
6834612Method and apparatus for making particle-embedded webs
Provided is a dispenser for dispensing particles onto a surface comprising a hopper for receiving particles, wherein the hopper has an opening at its bottom, a screen having openings and located adjacent the opening of the hopper, wherein the screen openings are uni...
12/28/2004
6716286Electrostatically assisted coating method and apparatus with focused electrode field
A system for applying a fluid coating onto a substrate includes forming a fluid wetting line by introducing a stream of fluid onto a first side of the substrate along a laterally disposed fluid-web contact area. An electrical force is created on the fluid from an ef...
04/06/2004
6666918Electrostatically assisted coating apparatus with focused web charge field
A system for applying a fluid coating onto a substrate includes forming a fluid wetting line by introducing a stream of fluid onto a first side of the substrate along a laterally disposed fluid-substrate contact area. An electrical force is created on the...
12/23/2003
6045855Electrostatic coating of small falling objects
This invention relates to a process and a device for producing an even and homogenous coating of liquids or powders on small free-falling objects that are not earthed. The process and the device according to the invention are primarily intended for surfac...
04/04/2000
5865891Planarization process using artificial gravity
The time needed to planarize the surface of an integrated circuit is reduced by causing the planarization liquid to settle in the presence of artificial gravity that supplements natural gravity. A number of different ways to achieve artificial gravity are...
02/02/1999
5540776Apparatus for applying a powdered coating to a workpiece
Apparatus for applying powdered coating to a workpiece--particularly to electric motor armatures and stators--including features relating to handling and masking of workpieces before, during and after coating, is provided. A first feature of the invention...
07/30/1996
4881688Device for insulating the spray liquid source from the high tension voltage of an electrostatic spray system when using an electrically conductive spray liquid
A device for insulating the spray liquid source from the high tension voltage of an electrostatic spray system when using an electrically conductive spray liquid. The device comprises a spray gun (13), a supply line (12) which connects the spray gun (13) ...
11/21/1989
4775874Magnetic closing and conveying mechanism for non-mechanical printer or copier devices
A magnetic mechanism is provided for a non-mechanical printer or copier device comprising a conveying channel through which a developer mix including magnetic components contained therein flows, so that a plug of developer mix is generated via the magneti...
10/04/1988
4697545Dendrite generator
A generator is disclosed herein for producing dendriform patterns or designs on a substrate workpiece employing an electrical device for charging a liquid as it flows between the oppositely charged electrodes over the substrate. The dendriform pattern, sh...
10/06/1987
4676190Deflecting device for viscous coating material freely flowing in the form of a sheet
A deflecting device includes a deflecting electrode (13), which is disposed at a spacing below a lip nozzle (11.1), from which the viscous coating material (10.2, 10.1) flowing freely in the form of a sheet is emerging, and which extends over the entire w...
06/30/1987
4505224Apparatus for electrostatically coating elongated workpieces with flock
Apparatus for electrostatically flock-coating elongated workpieces on a conveyor belt, wherein flock charged by an electrostatic field drops upon a workpiece from a feed opening located above the workpiece to be flock-coated, and excess flock is collected...
03/19/1985
4489672Apparatus for coating semiconductive material
Excessive heat-generating current levels produced in semiconductive materials by electrostatically assisted coating apparatus employed to, for example, improve the uniformity of a coating applied to such materials are avoided by passing an auxiliary curre...
12/25/1984
4488505Electronic strip oiler
Oil is delivered by a single pumping means to an application header which extends across the path of movement of an electrically grounded metal strip requiring oiling. A perforated plate within the header divides it into two chambers and forms a diffuser ...
12/18/1984
4457256Precharged web coating apparatus
Improved electrostatically assisted coating apparatus for placing an electrostatic dipole-type charge, of a predetermined magnitude, on material to be coated before and/or remote from the location where the coating is actually applied to said material by ...
07/03/1984
4453492Magnetic developing unit with improved toner decorator for magnetic printing
Disclosed is a magnetic developing unit having a decorator for applying magnetic toner to a latent magnetic image in a downwardly moving magnetic imaging member. Preferably the imaging member is in the surface of a cylinder and the decorator is at the 3 o...
06/12/1984
4324198Device for the electrostatic application of material particles entrained in a stream of gas to an advancing, flat substrate
A device for the electrostatic application of particles entrained in a stream of gas to a non-conductive, flat substrate, typically a web or sheets of paper. The particles are electrically neutral in the stream. A charging electrode is located below the s...
04/13/1982
4312268Apparatus and method for coating of inks applied at high speed
This invention relates to apparatus and a method by which a liquid is applied in desired configurations to a continuous web which travels at a relatively high rate. The liquid may be that which is applied by jets or the like. According to this invention a...
01/26/1982
3999512Electrostatic development system with passive storage capacity
The developer storage capacity of a development system for an electrostatic processor is increased by adding a passive reservoir to supplement the system pump. Provision is made for maintaining a more or less continuous flow of developer into and out of t...
12/28/1976
3991712Cascade development station having a roughened development plate for enhancing developer mixture turbulence
A special inexpensive development electrode within a cascade development station is positioned closely adjacent to a xerographic drum to define a development zone therebetween. The electrode is roughened by producing deflection elements thereon forming a ...
11/16/1976
3948218Electrostatic copier device
In an electrostatic copier using a particulate developer mix the invention provides a source of the mix, a supply ramp having an inlet end located higher than the source, and a conveyor for conveying the developer mix from the source to the inlet end of t...
04/06/1976
3939800Apparatus and process for depositing electrostatically and magnetically responsive particulate matter on a conductive surface
An apparatus for depositing electrostatically and magnetically responsive particulate matter on a conductive surface having an electrostatically charged latent image comprises an elongate permanent magnet that is disposed adjacent to the conductive surfac...
02/24/1976
 
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