Patents by Inventor Martin E. Dowzall

Martin E. Dowzall has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4941520
    Abstract: Apparatus for formulating pasty materials comprising a set of supply containers each containing a pasty material and each having an extrusion nozzle. A receiving tube is adapted to fit on each extrusion nozzle. An element is included for stimating the amount of material extruded from a selected container of the set into the receiving tube when the tube is fitted on one of the extrusion nozzles. The receiving tube is of flexible material to allow pasty material extruded into the tube to be ejected from the tube by application of a traveling pinching action along the tube. The apparatus may include a container for the receipt of such ejected material and an element for stirring or mixing to homogeneity material in the container.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: July 17, 1990
    Inventors: Martin E. Dowzall, Vazgen J. Houssian
  • Patent number: 4731149
    Abstract: A apparatus is described for producing optically satisfactorily laterally spaced letters which have been sequentially transferred from a dry transfer sheet. The sheet (28) is held in a holder (20) which incorporates a short free-motion linkage enabling the sheet so held to be moved horizontally over a short distance, the short distance being accurately repeated each time such movement is effected. By butting the letter next to be transferred to the letter just transferred and then moving the fixed distance away, visually pleasing letter spacing may be simply achieved without the use of extra transferable markings which need to be transferred to the working surface and subsequently removed, and without the need for excessively complex apparatus or for drawing alignment or spacing lines on the receptor.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: March 15, 1988
    Assignee: Esselte Pendaflex Corporation
    Inventors: Martin E. Dowzall, Vazgen J. Houssian
  • Patent number: 4564414
    Abstract: Magnetic devices are described which include a sheet of magnetic material having a relieved groove/ridge configuration, all the grooves and ridges being straight and parallel, and evenly spaced apart. Such devices can form part of apparatus for use in connection with a dry transfer sheet in assisting setting out a correctly spaced and aligned legend on a desired receptor surface. The apparatus can comprise a base member which, e.g. may be attachable to a designed receptor surface and a sheet-holder member. The sheet-holder member can consist of a bar to which a sheet of dry transfer material may be attached. One side of the bar of the sheet-holder member has a rib which may engage in the base member in one of the parallel grooves therein. The lateral spacing of the parallel grooves and the vertical spacing of lines of letters on the dry transfer sheet correspond to ensure accurate horizontal alignment of letters transferred from different rows on the transfer sheet to the final receptor.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: January 14, 1986
    Assignee: Esselte Pendaflex Corporation
    Inventors: Vazgen Houssian, Martin E. Dowzall
  • Patent number: 4542039
    Abstract: Colored legends are produced using a combination of dry transfer, preferably white, lettering, and the application of color thereto. The dry transfer is placed on an intermediate carrier to form the desired legend, the legend then e.g. sprayed over with colors, preferably using a felt tip marker as color source, or colored using a hot blocking foil and the so colored legend then lifted using an adhesive web and liquid treatment of the intermediate carrier to release the legend therefrom and positioned where desired on the final receptor. The adhesive web is then removed to leave the desired legend in the desired color.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: September 17, 1985
    Assignee: Esselte Pendaflex Corporation
    Inventor: Martin E. Dowzall
  • Patent number: 4539759
    Abstract: Apparatus is described which may be substituted for the vertical rule on a conventional drafting machine arrangement having a pair of rules set at right angles to one another. The apparatus includes a clamp for a transfer sheet which is movable in steps. Used with a dry transfer sheet with lines of letters on it, the interline spacing of which is an integral multiple of the stepped movement spacing of the apparatus, and fitted to a conventional drafting machine, the apparatus assists in applying accurate baseline legends to drawings using dry transfer rather than hand lettering.
    Type: Grant
    Filed: November 19, 1982
    Date of Patent: September 10, 1985
    Assignee: Esselte Pendaflex Corporation
    Inventors: Martin E. Dowzall, Vazgen J. Houssian
  • Patent number: 4513511
    Abstract: A drawing board for use with dry transfer materials is described. The board has a track along one edge and a paper clamp along an adjacent edge. The track bears a bar parallel to the paper clamp which in turn bears a carriage to which a dry transfer sheet can be affixed. The carriage may be racked up and down to bring an appropriate line of dry transfer letters over an appropriate place on a piece of paper held in the paper clamp. The carriage may be provided with a mechanism for holding it firm and then moving the dry transfer sheet clamp slightly. This mechanism enables words to be built up and which the letters are evenly spaced easily and quickly.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: April 30, 1985
    Assignee: Esselte Pendaflex Corporation
    Inventors: Martin E. Dowzall, Vazgen J. Houssian
  • Patent number: 4440590
    Abstract: A method of making a sign is described which comprises taking a transfer material and a temporary support sheet, the transfer material comprising a transparent or translucent carrier sheet bearing on one side a plurality of transferable indicia, which are either sufficiently adhesive as such to enable their transfer to the support sheet or which bear a layer of adhesive on their face remote from the carrier sheet, or which are non adhesive but transferable by virtue of a coating of adhesive on the temporary support sheet, the adhesive if present being adapted to adhere the indicia to the temporary support sheet more strongly than they adhere to the carrier sheet, and wherein the material of the indicia is adhesive under the application of heat and pressure, transferring indicia from the transfer material to the temporary support sheet in the desired order to build up the desired legend for the sign, and applying the transferred indicia under heat and pressure to the surface of a transparent or translucent she
    Type: Grant
    Filed: February 24, 1982
    Date of Patent: April 3, 1984
    Assignee: Letraset Corp.
    Inventors: Ronald B. Collins, Martin E. Dowzall, Brian J. Smith, Geoffrey R. Taylor
  • Patent number: 4364184
    Abstract: Apparatus for use in making signs, displays or artwork is described. The apparatus consists of a base board to which a receptor surface or, for example, a sign sheet may be secured. A sheet holder is movably mounted on the base board and removably supports a carrier sheet bearing horizontally aligned rows of indicia formed of dry transfer material in overlying relationship with the receptor surface. The carrier sheet may be slidable on the sheet holder back and forth horizontally across the receptor surface. The sheet holder is mounted to move vertically across the receptor surface in equal size steps between successive registered positions. The distance between the base line of successive rows of indicia on the carrier sheet is an integral multiple of the sheet holder step size so that when letters are successively transferred from different lines of the carrier sheet to the same line on the receptor surface, those letters are accurately level with one another and in proper horizontal alignment.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: December 21, 1982
    Assignee: Letraset Corporation
    Inventor: Martin E. Dowzall
  • Patent number: 4232452
    Abstract: A drawing board device is described of particular value in composing signs using dry transfer lettering sheets. The board has a base and a horizontal rule mounted thereon and capable of moving vertically and horizontally. The rule has one or more magnetic clamps for sheets of transfer material, and one or more sets of register pins for registering with e.g. a preprinted line on or preprinted holes in the sheet. The vertical movement of the rules is preferably stepped, the interline spacing between the lines of letters on the sheet being an integral multiple of the step length.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: November 11, 1980
    Assignee: Letraset International Limited
    Inventors: Martin E. Dowzall, Vazgen J. Houssian