Pivotal lift apparatus

Details Pivotal lift apparatus Pivotal lift apparatus

1983-01-24

1985-08-27

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating to or from oscillating

74 99R, 74107, 901 37, F16H 2144

Patent

active

045370850

ABSTRACT:
Apparatus for lifting a load through an arc includes two pivotally connected, overlapping housings which are pivoted relative to each other by a fluid operated piston disposed between the housings. The housings have overlapping sides provided with oppositely inclined cam tracks. Rollers driven by the piston and captured within the cam tracks transmit force between the sidewalls of the housings, thereby causing the housings to pivot relative to each other. One of the housings is adapted to have the load mounted thereon.

REFERENCES:
patent: 2648351 (1953-08-01), Curtis et al.
patent: 3440933 (1969-04-01), Sutton
patent: 3482830 (1969-12-01), Sendoykas
patent: 3570835 (1971-03-01), McPherson
patent: 3672262 (1972-06-01), Karr
patent: 3797324 (1974-03-01), Sheesley et al.
patent: 4265132 (1981-05-01), Robertson

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