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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 5334815 | Apparatus and method for producing a printing screen An apparatus for inking or printing on the surface of an item, such as a badge or emblem, is described. The apparatus incorporates a number of sub-systems including: an apparatus for holding and positioning blank screen material; a laser ablation system f... | 08/02/1994 |
| 5327828 | Clamp and process for protecting printing screens and frames An attractive, economical, dependable frame protector and process are provided to minimize tearing, puncturing, scratching, and loosening of printing screens as well as to protect and extend the useful life of a printing screen frame. The frame protector ... | 07/12/1994 |
| 5322763 | Process for making metal ledge on stencil screen A process for making a metal ledge on one side of a metal screen involves exposing through the stencil screen a photoresist layer, removing unexposed photoresist areas, plating the metal stencil screen where the unexposed photoresist has been removed and ... | 06/21/1994 |
| 5251567 | Stencil making device having means for controlling dot perforation density A stencil making device capable of controlling numbers of perforations formed by a thermal head. A perforated image is formed by the thermal head in a heat sensitive stencil sheet. An ink in an ink pad passes through the perforated image for providing an ... | 10/12/1993 |
| 5245932 | Heat-sensitive stencil master sheet A heat-sensitive stencil master sheet having good perforation properties, having prevented reduction in the resolution and setting-off of ink to the surface of printed matters and affording a good printed image is provided, which sheet is prepared by laminatin... | 09/21/1993 |
| 5243906 | Thermal stencil master plate and method for processing the same In the thermal stencil master plate and the method for processing the stencil master plate according to the present invention, since swelled and solidified unprocessed regions formed by film lumps or a part thereof produced from the melted film are provid... | 09/14/1993 |
| 5240816 | Method of producing a screen for printing a heating line pattern and a method of forming a heating line pattern on a glass plate A method of producing a screen for printing a heating line pattern which comprises the steps of: depositing a first photosensitive emulsion layer on a screen, masking a predetermined portion of the first photosensitive emulsion layer corresponding to a he... | 08/31/1993 |
| 5235908 | Apparatus for making stencils for use in screen printing machines Apparatus for making stencils of the type having a rectangular frame and a woven fabric stretched upon and affixed to the frame for use in a screen printing machine has a table which supports four rows of neighboring fabric stretching devices surrounding ... | 08/17/1993 |
| 5233918 | Reusable screen printing process and apparatus A screen printing process and apparatus for automatic coating, exposing and developing of a continuous belt-type printing screen. A segment of the belt is coated with photoemulsion, then dried, selectively exposed, and developed. After drying again, the s... | 08/10/1993 |
| 5232544 | Apparatus for producing an emulsion layer on a mesh screen of a screen printing plate A dual-purpose apparatus for selectively applying an emulsion onto a mesh screen of a screen printing plate and attaching an emulsion layer-containing film to the screen, comprises a printing plate support for supporting the screen printing plate, a film ... | 08/03/1993 |
| 5224419 | Stencil master plate making printing device In a stencil master plate making printing device which can lay out duplicated images on printing paper on either side of a central line thereof without regard to the size of the originals or the printing paper that is used so that each sheet of the printe... | 07/06/1993 |
| 5220867 | Adjustable tension silk screen frame Adjustable tension silk screen frame (10) of the floating bar type is disclosed. Retensionable stretch and glue screen printing frame (10) uses screen attachment members (13) of specific cross section to maximize the available printing surface provided by... | 06/22/1993 |
| 5216951 | Thermal plate making apparatus A thermal plate making apparatus including a thermal head having a plurality of heating elements arranged in a line. Each element has a shape having substantially four corners. And a protruding portion for enhancing heat generation is formed at each of at... | 06/08/1993 |
| 5207157 | Control device for a stencil duplicating machine A control device for a stencil duplicating machine having a stencil or master making section, printing section, paper feeding section and discharging section in an integrated assembly. Whether or not a master sheet is wrapped around a drum included in the... | 05/04/1993 |
| 5201027 | Electronic apparatus for the laser imprinting of screen-process printing stencils and the like Electronic apparatus for imprinting screen-process printing stencils, comprising: an electronic device for the color acquisition of the image of a color design so as to obtain information in a digital format which can be stored on a magnetic support; a co... | 04/06/1993 |
| 5186102 | Printer using a stencil A printer using a stencil is disclosed which has a function of forming the images carried on a plurality of documents in any desired positions of a single stencil in combination. The printer also has a function of printing a document image in a desired po... | 02/16/1993 |
| 5172633 | Printing screen plate making process and the device therefor A printing screen plate making process and the device therefor, the device comprising a box having a transparent film, a screen holder and a rubber pad contained therein. By drawing the desired pattern on said transparent film and covering a screen on sai... | 12/22/1992 |
| 5156089 | Method and apparatus for making a painting screen using an ink jet printer for printing a graphic on the screen emulsion A method for making a printing screen wherein a screen having an unexposed emulsion layer applied thereto is placed in a printing device, such as an ink jet printer, and a graphic is printed directly on the emulsion layer. The graphic is precisely and aut... | 10/20/1992 |
| 5147762 | Process for preparing a rotary silk-screen printing stencil for printing Disclosed is a process for preparing a cylindrical rotary screen printing stencil to made it suitable for use in a screen printing machine. In the process the steps of application of a photosensitive coating, drying, pattern-wise exposure, development and hard... | 09/15/1992 |
| 5140898 | Stencil duplicator capable of immediate restart Stencil duplicator comprising a stencil master plate processing unit for perforating a stencil master plate according to a desired print pattern, a printing drum unit including a rotary cylindrical printing drum for wrapping a processed stencil master pla... | 08/25/1992 |
| 5061565 | Film for heat-sensitive mimeograph stencil A film for heat-sensitive mimeograph stencil and a heat-sensitive mimeograph stencil comprising a porous support and the film laminated thereon are disclosed. Since the film of the present invention has an energy of crystal fusion ƊHu of 3-11 cal/g and h... | 10/29/1991 |
| 5050498 | Stencil manufacturing and printing process and apparatus A stencil manufacturing and printing process reduces printed image distortion by matching screen deflection in the photostencil preparation phase with stencil deflection in the printing phase. The usual squeegee is replaced by atmospheric pressure and scr... | 09/24/1991 |
| 5048417 | Compact apparatus for screen preparation and printing and method of use A compact, multi-function screen printing table is provided which, with the exception of the emulsion rinsing step, permits all of the steps of a screen printing process to be carried out at a single, space-saving work station. The upper side of the table... | 09/17/1991 |
| 5003870 | Antistretch screen printing arrangement A screen printing arrangement is disclosed including a mesh or screen attached to a frame, the screen having a pattern area defined therein. Strips of thin rectangularly shaped material are glued to the bottom surface of the screen, outside the pattern ar... | 04/02/1991 |
| 4975136 | Method of filler taping screen frame and method of filling screen frame Disclosed are a method of filler taping a screen frame and a method of filling a screen frame. The screen frame is held in such a manner as to be indexable 90 degrees, a tape is attached simultaneously on opposing two sides of the screen frame through lin... | 12/04/1990 |
| 4957378 | Printing-plate preparation apparatus employed in screen printing machine including a non-adhesive platen surface and a manuscript reading unit. In a printing-plate preparation apparatus employed in a screen printing machine comprising a thermal printhead provided with a heating-element portion, a rotatably supported platen roller for delivering a stencil paper and urging the same against a surfac... | 09/18/1990 |
| 4946763 | Method for providing a design pattern on a metal stencil and metal stencil having a patternable covering layer The present invention relates to a method for forming a pattern in a metal stencil or screen which is covered by a covering layer in the form of a resist material. The pattern is formed by locally removing the lacquer or resist from the screen's perforati... | 08/07/1990 |
| 4903595 | Arrangement for producing a plurality of printing forms automatically and in sequence Printing forms are produced by arranging in a magazine a plurality of printing frames, each including a stretch cloth and a light-sensitive coating. The printing frames are arranged in parallel relationship and parallel to an outlet slit of the magazine. ... | 02/27/1990 |
| 4887168 | Thermally operated apparatus for making a plate A thermally operated plate making apparatus with a capability of producing a plate which carries a plurality of images of a small-size original document side by side thereon by a continuous operation includes a document transport roller pair for transport... | 12/12/1989 |
| 4876957 | Apparatus for applying an emulsion screen film of screen-printing An apparatus for applying an emulsion screen film of screen-printing is disclosed, which includes a support frame for vertically supporting a screen-printing plate and for holding a rolled emulsion screen film above the screen-printing plate, a film guidi... | 10/31/1989 |
| 4878127 | Laser engraving machine for preparing rotary screen printing screens A laser engraving machine for engraving rotary printing screens includes a shaft (1) having one end connected to a rotary drive (3)for rotating the shaft (1), two end ring assemblies (7, 8) at least one (8) of which is movable along the shaft (1) and whic... | 10/31/1989 |
| 4869165 | Silkscreen process for producing a design and proximate inscription A process for producing designs on canvas and/or other articles which are adapted to be printed by a silk-screen process. The process involves printing inscriptions around a framed design, with the inscriptions having a color different from the color of t... | 09/26/1989 |
| 4856424 | Apparatus for filler taping screen frame and apparatus for applying filling liquid to screen frame Disclosed are an apparatus for filler taping a screen frame and an apparatus for applying a filling liquid to a screen frame. The screen frame is held in such a manner as to be indexable 90 degrees, a tape is attached simultaneously on opposing two sides ... | 08/15/1989 |
| 4843961 | Stencil printing with vacuum support frame A stencil manufacturing and printing process reduces printed image distortion by matching screen deflection in the photostencil preparation phase with stencil deflection in the printing phase. The usual squeegee is replaced by atmospheric pressure and scr... | 07/04/1989 |
| 4794542 | Sign generating apparatus with input of second sign information while cutting a first sign A sign generating apparatus comprises a keyboard for entering first sign data and second sign data, a processor for supervising the data input during intervals, and a cutting apparatus for cutting a first sign based on the first sign data and a second sig... | 12/27/1988 |
| 4789621 | Screen emulsions comprised of diacetone acrylamide Screen emulsions in accordance with the present invention include a poly vinyl alcohol and poly vinyl acetate or a poly vinyl acetate copolymer emulsified in water along with appropriate amounts of diacetone acrylamide and an acrylic monomer. The emulsion... | 12/06/1988 |
| 4761364 | Screen printing stencil for making elastomer sealing layers on flat gasket plates and method for making same Screen printing stencil for making sealing layers of elastomer material on a flat gasket. A screen carrying a photoresist layer exhibits areas of increased height on the side with which it is made to contact the flat gasket, in order to simultaneously pro... | 08/02/1988 |
| 4718340 | Printing method A printing system incorporating a re-usable ink image transfer surface. A material which forms a thin hydrophobic layer is arranged by various techniques over a substantially hydrophilic transfer surface in a configuration which defines the desired latent... | 01/12/1988 |
| 4702783 | Adhesive technology A process for chemically bonding a screen fabric material to a frame structure for serigraphic printing purposes. The bonding or fastening process includes, providing a screen fabric material in taut communication to peripheral portions of a frame structu... | 10/27/1987 |
| 4649817 | Stencil manufacturing and printing process A stencil manufacturing and printing process reduces printed image distortion by matching screen deflection in the photostencil preparation phase with stencil deflection in the printing phase. The usual squeegee is replaced by atmospheric pressure and scr... | 03/17/1987 |
