Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7314440 | Former for a strip-producing or strip-processing machine A former is provided for a web-producing or a web-processing machine. The former is structured with a porous material through which a fluid can pass. The porous material is positioned or located on at least one region of the former that is cooperating with a strip o... | 01/01/2008 |
| 7270873 | Anti-marking coverings for printing presses In a printing press and attached onto the transfer cylinders, an anti-marking system that uniformly supports the transport and the release of the wet printed sheet from one station to the next. The anti-marking sheet consists of a two plus layer system, the outer la... | 09/18/2007 |
| 7258067 | Drying equipment for high speed printer Drying equipment to aid drying of a web of freshly printed media, the equipment having a feed path along which the freshly printed web is fed by a drive means, and a drying fluid supply means that directs drying fluid across the web along the extent of the feed path... | 08/21/2007 |
| 7254902 | Sheet dryer A sheet dryer includes sprockets and a delivery chain, at least one heat-resistant glass plate, at least one lower-surface drying lamp, a guide plate, a plurality of first discharge holes, and a plurality of second discharge holes. The sprockets and delivery chain c... | 08/14/2007 |
| 7255776 | Paper product and method therefor using molten wax suspension A method including improving a property of a paper product precursor by adding a molten wax suspension to paper product precursor, the molten wax suspension including a suspension of liquid wax particles in a liquid solvent, the liquid wax particles being at a tempe... | 08/14/2007 |
| 7208045 | Powdering unit, powdering station and method for their operation A powdering unit for spraying printed products with powder has two box-shaped guiding elements following each other in the product-conveying direction. These guiding elements delimit, with mutually opposite parallel guiding sides, a guiding shaft leading to the prod... | 04/24/2007 |
| 7182813 | Production apparatus of multilayer coating film The coating construction has flexibility corresponding to the number of layers of multiple coating layers, by which a multilayer coating film can be produced with small film thickness without adherence of dust to a film surface, a drying fault such as unevenness ind... | 02/27/2007 |
| 7159963 | Image recording apparatus with wipe unit and nozzle maintenance unit An image recording apparatus is disclosed having a recording head including a plurality of nozzles for jetting an ink and a maintenance unit for performing a maintenance operation to the nozzles. The maintenance unit includes an absorbing member to wipe an ink adher... | 01/09/2007 |
| 7152527 | Module for sheet-fed perfecting multi-color printing press, printing unit and sheet-fed perfecting multi-color printing press, and manufacturing methods therefor An apparatus and a method in which when both of two-stage type and impression cylinder connecting type sheet-fed perfecting multi-color printing presses are manufactured, there is no need for a manufacture of extra parts or an extra stock, and also the replacement a... | 12/26/2006 |
| 7104195 | Packing for a sheet-guiding cylinder in a processing machine A printing and/or varnishing machine having a plurality of sheet-guiding cylinders in which at least one of the cylinders has an outer detachable packing which has enhanced ink repellent characteristics and which significantly reduces wear. The packing has a layered... | 09/12/2006 |
| 7097297 | Ink jet printer, and image printing apparatus having the printer This invention relates to an ink jet printer including a printing-head which discharges photo-curing ink toward a printing sheet, and a light irradiation unit which irradiates the ink landing surface of the printing sheet with light, wherein the light irradiation un... | 08/29/2006 |
| 7082875 | Dust collection apparatus of printing press A dust collection apparatus of a printing press comprises: delivery chains equipped with gripper devices for holding a printed sheet; spray nozzles for spraying a powder toward a printed surface of the sheet being transported by the delivery chains; a blowing device... | 08/01/2006 |
| 7021210 | Printing press cylinder A multipart printing press cylinder. A pair of hubs have an inner bore for mounting on a press shaft. Each hub is made in two parts which may be positioned about the press shaft and attached to each other by, e.g. screws. Each hub has a profile section. A pair of pa... | 04/04/2006 |
| 7014309 | Ink drying system for high speed printing An ink drying system for high speed printing. A plurality of plenums are in fluid communication with a source of pressurized gas, mediated by respective fast acting valves. In a first embodiment of the invention, each plenum contains a plurality of small orifices gr... | 03/21/2006 |
| 6983696 | Apparatus for cooling material to be printed and printing units at sheet fed printing machines with cooled compressed air The present invention relates to an apparatus for cooling material to be printed and printing machine elements at sheet-fed rotary printing machines by means of cooled compressed air. It is an object of the present invention to provide an apparatus which requires li... | 01/10/2006 |
| 6938544 | Belt drive A belt drive for a machine for printing images on a flat printing material, having a continuous belt revolving during operation, includes a belt guide having stops for two protruding edges of the belt, the edges being oriented in a longitudinal direction of the belt... | 09/06/2005 |
| 6936111 | Method and device for washing a rubber blanket During a washing cycle of a rubber blanket on a blanket cylinder some revolutions of the blanket cylinder are initially performed during which the cleaning element is lifted off the blanket cylinder temporarily when the clamping channel passes under the cleaning ele... | 08/30/2005 |
| 6923534 | Ink type recording device and method for cleaning control of the same The printer moves printing paper (12) toward an ejecting direction and a feeding direction in order to clean a notched rollers (28). Next, the printer moves the printing paper (12) toward the feeding direction under conditions where a cutting pa... | 08/02/2005 |
| 6902267 | Ink-jet image forming method A method of forming an ink-jet image, comprising the steps of: ejecting droplets of an ink onto an ink-jet recording media which includes a support having thereon an outermost layer containing a thermoplastic resin; and then applying pressure onto the outermost laye... | 06/07/2005 |
| 6802256 | Method and device for preventing uncontrolled spread of powder in a printing machine A method for conveying sheets, which have been printed in a printing machine, through a sheet delivery system above a sheet deposit pile by a sheet conveying device and, at the same time, dusting the sheets with a powder, and preventing uncontrolled spread of excess... | 10/12/2004 |
| 6732645 | Method of presetting ink In a first printing process in Steps S1 through S6, ink supply is controlled so that a measured printed density (Vn) is approximately equal to a first target density (V1). This provides a uniform amount of ink remaining on ink rollers after the ... | 05/11/2004 |
| 6718908 | Coating machine for upgrading sheet material A coating machine for applying a flowable coating substance to a sheet material to improve its surface. The coating machine has a series construction which lends itself to easy modification and versatile use. The coating machine includes, in a sheet conveyance direc... | 04/13/2004 |
| 6701841 | Sheet discharge unit A sheet discharge unit has a transfer passage 3 for transferring a sheet of printed paper 2 toward a sheet receiving tray 20, and a pair of left and right jump wings 11, 11 located at both sides of the transfer passage 3 and moveable between a guide posit... | 03/09/2004 |
| 6626429 | Method of setting guide elements for a flat material on the basis of printed-image information A method of setting guide elements for a flat material along a printing-material conveying path in a rotary printing machine includes determining a job-specifically optimized actuating position for a positioning of sheet-guiding elements and of sheet-conv... | 09/30/2003 |
| 6598874 | Method and device for contact-free retention of sheets A method of retaining a sheet on at least one of a transfer cylinder and a guide surface of a sheet-guiding device in a sheet-processing machine by pneumatically activatable nozzles for producing an air cushion beneath the respective sheet, which comprise... | 07/29/2003 |
| 6591751 | Powder apparatus for sheet-fed rotary printing press A powder apparatus for a sheet-fed rotary printing press includes a nozzle, valve, state detection unit, arithmetic operation unit, and controller. The nozzle sprays powder onto a printed surface of a sheet delivered after printing. The valve adjusts a qu... | 07/15/2003 |
| 6502506 | Stencil printing machine having moistener mechanism A stencil printing machine is provided with a paper feed section feeding a print sheet, which is allowed to have paper dusts thereon, in a paper feed path, and a print section to which the print sheet is transferred, and including a printing drum carrying... | 01/07/2003 |
| 6371044 | Wax coating device for a wet type electrophotographic color printer A wax coating device for a wet type electrophotographic color printer is capable of preventing the coating operation when printed matter is not supposed to be wax-coated. The wax coating device includes: a coating roller rotatably disposed so as to be par... | 04/16/2002 |
| 6371026 | Apparatus and method for collecting residual material dispersed during imaging Disclosed are apparatus and methods for protecting an optical system from residual material that is scattered and dispersed during the imaging of printing plates and collecting same. The apparatus includes a housing with upper and lower chambers and surro... | 04/16/2002 |
| 6349647 | Apparatus and method for drying printing composition on a print medium A printing device, inductive heating device, and method are disclosed. An embodiment of the printing device includes a printing mechanism for printing an image on a print medium, a metal belt for transporting the print medium, and an induction heater posi... | 02/26/2002 |
| 6335098 | Rotary press doctor An ink duct for use with a screen roller which comprises a working doctor blade and a closing doctor blade, wherein the working doctor blade has one or both sides partially or completely coated with an unreleasable coating of a low surface energy substanc... | 01/01/2002 |
| 6293196 | High velocity, hot air dryer and extractor A hot air dryer utilizes high velocity air jets which scrub and break up the moist air layer which clings to the surface of a freshly printed sheet. High velocity air is heated to a high temperature as it flows along a resistance heating element within an... | 09/25/2001 |
| 6250224 | Powder sprayer A powder sprayer unit which provides improved spraying of powder onto printed sheets of material produced in printing presses. The powder sprayer includes a source of pressurized fluid, a source of powder, a mixer and a distributor. The mixer includes at ... | 06/26/2001 |
| 6220161 | Chill roller which provides uniform temperature regulation A chill roller having in the interior thereof structural features selected from groups thereof consisting of mixing zones and transport pipes, and having at the exterior thereof a coolant supply pipe and a coolant discharge pipe, includes coolant supplied... | 04/24/2001 |
| 6182567 | Printing press with an actuator A printing press having an actuator, includes a chamber partly surrounding the actuator and having a pressure prevailing therein that is greater than the pressure in the outer surroundings of the chamber.... | 02/06/2001 |
| 6138565 | Method and apparatus for guiding sheets on a guide blade in printing machines A guide blade for guiding sheets in a printing machine in in-line or perfecting mode processes employing trailing edge turning, the guide blade has a front edge and an end piece, and air nozzels located in a flow surface extending from the front edge alon... | 10/31/2000 |
| 6119597 | Method and apparatus for handling printed sheet material A transfer cylinder for supporting freshly printed sheet material between printing units or at the delivery unit of a printing press is provided with an ink repellent, flexible jacket covering for supporting and transporting the sheet material without tra... | 09/19/2000 |
| 6105499 | Transport drum in rotary printing presses A transport drum in a rotary printing press, having a covering for preventing a fresh printed product from being smeared when the printed product is being transported through the press, the covering being secured to the jacket surface of the transport dru... | 08/22/2000 |
| 6106623 | Printed sheet coating apparatus In order to prevent a coating liquid from scattering outside the surface of a printed sheet, an on-demand coating head having plural jet sections is arranged along a direction parallel to the left and right edges of the printed medium, and jets only liqui... | 08/22/2000 |
| 6095047 | Web-fed rotary printing press with apparatus for diverting a wet printed web A lithographic web-fed rotary printing press (1) comprises an apparatus (8a, 8b, 8c, 8d) for diverting a wet printed web (4), e.g. in order to pass it around a downstream printing unit (2b) of the press (1). Each diverting apparatus (8a, 8b, 8c, 8d) inclu... | 08/01/2000 |