Motor vehicles – Special driving device – Stepper
Patent
1995-07-31
1998-08-04
Boehler, Anne Marie
Motor vehicles
Special driving device
Stepper
180 81, B62D 37032
Patent
active
057880026
ABSTRACT:
A transport device being movable automatically inside a pipe includes at least two clamping units to be displaced counter to one another and braced mechanically independently of one another in a pipe. Each of the clamping units has a base with a variable length and ends, as well as a plurality of clamping elements joining the ends together, for radial moving the clamping elements by varying the length of the base.
REFERENCES:
patent: 4674949 (1987-06-01), Kroczynski
patent: 5351626 (1994-10-01), Yanagisawa
Boehler Anne Marie
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
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