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Title: US5378282: Robotic tool manipulating apparatus
[ Derwent Title ]


Country: US United States of America

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9 pages

 
Inventor: Pollard, Willard L.; St. Petersburg, FL 33710

Assignee: None

Published / Filed: 1995-01-03 / 1993-06-28

Application Number: US1993000082714

IPC Code: Advanced: B05B 13/04; B23Q 1/60; B25J 17/02; F16H 25/02; F16H 25/20;
Core: B05B 13/02; B23Q 1/25; F16H 25/00; more...
IPC-7: B05C 11/00; B25J 11/00; B25J 17/02;

ECLA Code: B05B13/04D; B23Q1/60A7; B25J17/02F2; F16H25/02;

U.S. Class: Current: 118/697; 074/490.06; 118/323; 118/698; 901/023; 901/029; 901/043;
Original: 118/697; 118/698; 118/323; 901/023; 901/029; 901/043; 074/490.06;

Field of Search: 118/696,697,698,323 901/014,23,25,29,43 414/749 074/479 B,479 BJ,479 BW

Priority Number:
1993-06-28  US1993000082714

Abstract: Three traveling blocks confined to rectilinear paths are propelled to and fro in those paths in coordinated programs of motion by program-controlled motors. A leg member for each of said blocks is flexibly connected at one of its ends to its respective traveling block. The three legs are flexibly interconnected at locations on the legs away from the blocks. The three legs combine the programmed rectilinear movements of the blocks to produce a corresponding programmed three-dimensional movement of a tool carried by one of said legs.

Primary / Asst. Examiners: Warden, Robert J.; Dawson, E. Leigh

Maintenance Status: E3 Expired  Check current status

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 3 claims
I claim:     1. Apparatus for automatically moving a tool in a predetermined program of motion in three dimensions comprising:
  • a frame;
  • a control signal generator producing three individual coordinated programs A, B and C of motion control signals;
  • three screw-threaded shafts M, N, and O journalled in bearings mounted on said frame and separated from each other;
  • three signal-controlled motors D, E and F connected to receive respectively the programs A, B and C and to rotate the shafts M, N, and O correspondingly to said programs, the shafts M, N, and O being connected to be rotated by said motors D, E and F respectively;
  • three traveling blocks G, H and I having female screw threads formed therein and threaded respectively onto the threads of the shafts M, N and O, so as to be propelled to and fro in rectilinear paths along the axes of, and proportionately to the rotations of, the shafts M, N and O respectively;
  • three leg members J, K and L each connected at one end to a respective one of the blocks G, H and I by a respective on of three rotational hinge connections P, Q and R;
  • said leg members J, K and L being connected together by rotational connections at locations thereon remote from their respective rotational hinge connections P, Q and R to the blocks G, H and I;
  • a tool supported by the leg member J at a location thereon remote from the rotational hinge connection P;
  • said rotational hinge connections P, Q and R having axes of rotation U, V and W respectively, and confining the relative rotational motion between each one of the respective leg members J, K and L and its corresponding respective one of the blocks G, H and I exclusively to rotational motion about its corresponding respective one the axes U, V and W;
  • each of the axes U, V and W being disposed at an angle of at least 45 degrees to the axis of its corresponding respective one of the shafts M, N and O;
  • each of the rotational hinge connections P, Q and R being the sole rotational connection between its respective one of the leg members J, K and L and its corresponding respective one of the blocks G, H and I;
  • each of said leg members J, K, and L being free and unconfined to rotate about an axis at an angle of at least 45 degrees to the axis of its corresponding respective one of the shafts M, N, and 0; and
  • each of said blocks G, H, and I being free and unconfined, except as constrained by its respective one of the rotational hinge connections P, Q, and R to the assemblage of the leg members J, K, and L, to rotate about an axis parallel to the axis of its corresponding respective one of the shafts M, N, and O.


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Description: Show description

Forward References: Show 31 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (31)   |   Backward references (4)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 12pp US4407625  1983-10 Shum  Westinghouse Electric Corp. Multi-arm robot
Get PDF - 11pp US4806068  1989-02 Kohli et al.   Rotary linear actuator for use in robotic manipulators
Get PDF - 11pp US4819496  1989-04 Shelef  The United States of America as represented by the Secretary of the Air Force Six degrees of freedom micromanipulator
Get PDF - 9pp US5266115  1993-11 Taccon et al.  Taccon Construzioni Meccaniche S.D.F. di A. Gironi & C. Servocontrolled axis manipulator with programmable spraying heads
       
Foreign References: None

Other Abstract Info: DERABS G1995-051142 DERABS G1995-051142

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