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Title: US4312276: Turntable joining tracks with linear induction motor control
[ Derwent Title ]

Country: US United States of America

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9 pages

Inventor: Cory, Stanley A.; Malibu, CA
Black, Millard G.; Santa Ana, CA
Scholtz, Gilbert J.; La Puente, CA

Assignee: Walt Disney Productions, Burbank, CA
other patents from WALT DISNEY PRODUCTIONS (617670) (approx. 22)
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Published / Filed: 1982-01-26 / 1979-10-09

Application Number: US1979000082692

IPC Code: Advanced: B60S 13/02; B61J 1/02; B61J 1/04;
Core: B60S 13/00; B61J 1/00;
IPC-7: E01B 7/00;

ECLA Code: B60S13/02; B61J1/02;

U.S. Class: Current: 104/038; 104/292; 246/227;
Original: 104/038; 104/292; 246/227;

Field of Search: 104/035,38,47,50,292,130 246/227,231,240

Priority Number:
1979-10-09  US1979000082692

Abstract:     A turntable bearing tracks at a switching point in an amusement ride course, or other vehicular path having tracks, utilizes two linear induction motors, one for rotating the turntable and one for latching the turntable at selected rotational positions. The linear induction motors are mounted beneath the turntable and operate with an extremely high degree of reliability.

Attorney, Agent or Firm: Fulwider, Patton, Rieber, Lee & Utecht ;

Primary / Asst. Examiners: Bertsch, Richard A.;

INPADOC Legal Status: None          Buy Now: Family Legal Status Report

Family: Show 2 known family members

First Claim:
Show all 14 claims
We claim:     1. A turntable mechanism comprising a fixed support, a turntable mounted by an axle upon said fixed support and rotatable relative to said fixed support in alternative angularly displaced positions, a bi-directional linear induction motor coupled to said turntable and to said fixed support and having a stator element and also an armature element which is linearly movable relative to said stator element in both of two opposite linear directions, and a first of said linear induction motor elements is connected to said fixed support at a support attachment radially displaced from said axle and a second of said linear induction motor elements is connected to said turntable at a turntable attachment radially displaced from said axle and angularly displaced from said support attachment, whereby said linear induction motor is actuable to rotate said turntable in either direction of rotation relative to said fixed support.

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Forward References: Show 4 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (4)   |   Backward references (3)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 7pp US1800722* 1931-04 Edson    
Get PDF - 11pp US4094252  1978-06 Pater et al.  Pater; Hendrik Self-controlled on-grade monorail track switch and method
  * some details unavailable
Foreign References: None

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