Supports – With condition responsive control means
Patent
1991-07-22
1992-09-29
Johnson, Blair M.
Supports
With condition responsive control means
188378, F16M 1300
Patent
active
051508753
ABSTRACT:
A linear mass actuator includes an upper housing and a lower housing connectable to each other and having a central passageway passing axially therethrough a mass linearly movable in the central passageway, rollers mounted in the upper and lower housings and being in frictional engagement with the mass, for translating the mass linearly in the central passageway and drive motors operatively coupled to the roller means, for rotating the rollers and thus driving the mass axially in the central passageway.
REFERENCES:
patent: 4643385 (1987-02-01), Sandercock
patent: 4795123 (1989-01-01), Forward et al.
patent: 4796873 (1989-01-01), Schubert
patent: 5052529 (1991-10-01), Sutcliffe et al.
Behun Vaughn D.
Crossley, Jr. Edward A.
Davis C. Calvin
Goodrich, Sr. Lewis R.
Holloway, III Sidney E.
Johnson Blair M.
Osborne Kevin B.
The United States of America as represented by the Administrator
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