Process Patents (Class 409/84)
  • Patent number: 4646590
    Abstract: A kit and method for constructing a temporary key template from a key code of a lock having pin tumblers is disclosed. The temporary key template is used as a master in order to make a permanent duplicate key having appropriate serrations from a suitable uncut key. The kit includes a converter blank key having an elongate bar in which a plurality of apertures are provided. These apertures are spaced at predetermined distances from one another which correspond to the respective distances between the pin tumblers of the lock. A plurality of different pins are provided which are adapted to be inserted into any of the apertures so that a predetermined upper portion of the pin extends above the elongate bar. The particular pin need for an aperture is determined by the key code so that by filling the appropriate apertures with appropriate pins, a temporary key template is constructed which is easily duplicated on a conventional key duplicating machine.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: March 3, 1987
    Inventors: Brian W. Jones, Richard L. Hagens
  • Patent number: 4643622
    Abstract: A machine tool is provided with a controller for computing, as a function of an established radius and a preset feedrate, a rotational speed for rotating the machine spindle to provide a uniform surface speed at the working edge of a tool as the tool alternates between linear movement along an X and/or Y axis and arcuate movement along the C-axis of the spindle. A method is provided for gauging straight surfaces and adjoining arcs at a constant feedrate without interruption.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: February 17, 1987
    Assignee: Moore Special Tool Co., Inc.
    Inventor: Dennis A. Winski
  • Patent number: 4623288
    Abstract: Apparatus for fabricating a compensating filter for use in radiation therapy includes a stylus for tracing the profile of a surface portion of a patient and a cutter for cutting a form. The stylus and cutter are positioned on first and second guides which are connected by a tie bar. A plurality of linkages translate movement of the stylus along its guide to the cutter along its guide. A mold is cut in the form which is filled with compensating material for forming the filter. The ratio of movement of the stylus to the cutter is established by the linkages in accordance with the ratio of radiation absorption of the compensating material to the radiation absorption of human tissue.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: November 18, 1986
    Assignee: Varian Associates, Inc.
    Inventors: Richard J. Brunelli, Scott J. Mestman
  • Patent number: 4621959
    Abstract: An area cutting method for cutting the interior of an area (AR) bounded by an external shape curve (OLC) including a number of straight lines (S1, S2, . . . S6) and a circular arc (A1). The method includes linearly approximating a circular arc portion (A1') of an offset curve (OFC) which is offset a predetermined amount from the external shape curve. Then an area bounded by the linearly approximated offset curve is divided into a plurality of convex polygons (PG1-PG3). The centroid (Wi) of each convex polygon and the mid-points (M1, M2) of boundary lines (B1, B2) of two mutually adjacent convex polygons are calculated, and a base line (BL) is generated by successively connecting each centroid and each mid-point.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: November 11, 1986
    Assignee: Fanuc Ltd
    Inventors: Hajimu Kishi, Masaki Seki, Takashi Takegahara, Yasushi Onishi
  • Patent number: 4599022
    Abstract: A clamp profiling control method in which a profiling feed operation, a profiling starting point return operation and a pick-feed operation are performed alternately, and in which a clamp feed is performed at a set clamp level (LCZ), which method includes specifying a clamp region (H1) by storing an initial position (A) at which clamp feed is performed and a position (B) at which clamp feed is no longer performed during the course of profiling feed, executing repetitive clamp profiling control within the clamp region while changing the clamp level (LCZ) and, when the clamp feed is no longer performed even once in the course of clamp profiling control, setting the clamp level to an initial value and proceeding to the next profiling region where the profiling feed operation, profiling starting point return operation and pick-feed operation are performed.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: July 8, 1986
    Assignee: Fanuc Ltd.
    Inventor: Etsuo Yamazaki
  • Patent number: 4596501
    Abstract: A method of flank milling complex surfaces comprising the steps of analyzing the design surface to determine discrete areas in which straight lines can be drawn, determining straight lines in the discrete areas, transposing the coordinates of these straight lines and comparing them with the flank tool cutter positions, determining the tool positions to said straight lines, back generating the contact lines of said surface and comparing these with the design surface, determining the number of passes of said cutter tool and generating data for numerical control machining.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: June 24, 1986
    Assignee: Pratt & Whitney Canada Inc.
    Inventor: Chung Y. Wu
  • Patent number: 4533286
    Abstract: A tool compensation method for cutting a surface on a workpiece having a slanted surface. A radius at a final point is determined by a path computing unit using coordinates of the final cutting point and a tool height. Based on these values thus determined, coordinates of a final offset position, which is aligned with a tool center, is also computed. Corrective values in the directions of the X and Y axes are determined using the computed coordinates and coordinates of a starting offset position, to thereby correct the movement of the tool center.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: August 6, 1985
    Assignee: Fanuc Ltd.
    Inventors: Hajimu Kishi, Masaki Seki, Masashi Kawasumi
  • Patent number: 4455113
    Abstract: A method and an article, produced by the method, of symbols arranged in a group, taken from a plurality of identifiable symbols, and which may be produced in one piece from a plate of metal with the aid of a set of separate master symbols, wherein selected of the master symbols represent the group of arranged symbols, and with the aid of a transfer-and metal-removing mechanism for transferring the contours of the master symbols onto the plate.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: June 19, 1984
    Assignee: Namecraft Manufacturing Corp.
    Inventor: Steve Liebman
  • Patent number: 4437150
    Abstract: A method and apparatus for manipulating an engraving tool in the processing of a plurality of jobs wherein an intelligent terminal processes data supplied by a user, the processed data being transferred to a control unit wherein the data is used to modify instructions from a master font located therein. Within the control unit, the modified master font instructions are transformed into drive signals which are then relayed to a mechanical tool manipulating means, wherein the mechanical tool is manipulated in response to the drive instructions.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: March 13, 1984
    Inventors: William V. Dahlgren, Jr., Lewis S. Silverstein, Edward W. Claire
  • Patent number: 4359302
    Abstract: An apparatus and method for cutting wallboards, such as gypsum wallboards or rock wallboards to an appropriate size and shape, and for locating utility boxes hidden behind a panelled wall and cutting of a section of the wall at the opening of the utility boxes. The apparatus of the invention comprises a portable hand tool having an adjustable rest for adjusting the depth of cut and a built-in ruler-guide arrangement permitting to cut parallel to a side of a wallboard or permitting to cut circles in a wallboard. The hand tool may be used in combination with a separate locator and cut-out template member positioned in utility boxes mounted behind an installed wall, which provides an indication of the location of each utility box by way of a wallboard puncturing prong, for cutting out an opening in the wallboard, following appropriate guide grooves in the face of the locator and cut-out template.
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: November 16, 1982
    Inventor: Bryan Payne
  • Patent number: 4355447
    Abstract: An arrangement for removing excess material from an object surface, to provide a desired finished surface. Holes are drilled into the object so that the bottoms of the holes lie on the desired finished surface. The holes have a shape so that the observed hole diameter at the prevailing surface of the object is dependent on the hole depth and thereby dependent on the amount of material remaining to be removed between the prevailing surface and the desired finished surface. The prevailing surface is continuously observed and measured, and the depths of material to be removed in a sequence of steps is calculated dependent on the measurements of the prevailing surface and the coordinates of the desired finished surface. As a result of the calculations, the depth of material removed during each step is controlled, so that upon carrying out a sequence of such steps, the surface exposed on the object after the last step has been carried out, coincides with the desired finished surface.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: October 26, 1982
    Assignee: Solid Photography, Inc.
    Inventors: Paul DiMatteo, Robert Segnini, Paul Rademacher
  • Patent number: 4337566
    Abstract: An arrangement for removing excess material from an object surface, to provide a desired finished surface. Holes are drilled into the object so that the bottoms of the holes lie on the desired finished surface. The holes have a shape so that the observed hole diameter at the prevailing surface of the object is dependent on the hole depth and thereby dependent on the amount of material remaining to be removed between the prevailing surface and the desired finished surface. The prevailing surface is continuously observed and measured, and the depths of material to be removed in a sequence of steps is calculated dependent on the measurements of the prevailing surface and the coordinates of the desired finished surface. As a result of the calculations, the depth of material removed during each step is controlled, so that upon carrying out a sequence of such steps, the surface exposed on the object after the last step has been carried out, coincides with the desired finished surface.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: July 6, 1982
    Assignee: Solid Photography, Inc.
    Inventors: Paul DiMatteo, Robert Segnini, Paul Rademacher
  • Patent number: 4178834
    Abstract: An improved machine tool includes an extendible ram or tool support arm. As the ram is extended, the outer end portion of the ram deflects downwardly under the influence of gravity. To compensate for the deflection of the ram, the angular orientation of the ram relative to upwardly extending tracks is changed to raise the outer end portion of the ram. This is accomplished by means of gibs or deflection compensation cams which are moved to rotate a carriage or saddle on which the ram is mounted. The extent of deflection of the ram varies as a function of the distance which it extends outwardly from the carriage. Therefore it is necessary to store data indicative of the deflection of the ram at various degrees of extension and to adjust the orientation of the ram in accordance with this data as the ram is extended. The data indicating the extent to which the ram deflects is stored by means of a cam mounted on the carriage. The cam is read by a transducer which moves with the ram.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: December 18, 1979
    Assignee: The Warner & Swasey Company
    Inventor: Paul E. Holmstrom