Machine element or mechanism – Mechanical movements – Reciprocating to or from oscillating
Patent
1980-05-09
1982-10-19
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Reciprocating to or from oscillating
74 41, 74582, 267141, F16H 2132, G05G 300
Patent
active
043543979
ABSTRACT:
A shock absorber apparatus connected in series relationship respective to the polished rod and bridle of a pumpjack unit. The shock absorber includes a housing within which there is supported a plurality of resilient packer members stacked in sandwiched relationship. The packer members have an axial passageway formed therethrough, with the passageway of each packer member being aligned with one another, so that the polished rod is telescopingly received therethrough. The bottom of the housing is supported by the bridle, while the polished rod is supported by a plate member which bears against the uppermost packer member. This places all of the resilient packer members in compression, with the force of the compression being proportional to the weight of the sucker rod.
REFERENCES:
patent: 2038527 (1936-04-01), Eaton
patent: 2230029 (1941-01-01), Eaton
patent: 2241409 (1941-05-01), Mason
patent: 2925266 (1960-02-01), McAllister
patent: 3144247 (1964-08-01), Szonn et al.
patent: 3363475 (1968-01-01), Foster et al.
patent: 3480268 (1969-11-01), Fishbaugh
patent: 3606295 (1971-09-01), Appleton
patent: 3831923 (1974-08-01), Meldrum
patent: 4085832 (1978-04-01), Gaines et al.
patent: 4176714 (1979-12-01), Case
Dyna-Pak Inc. Brochure, "Sucker Rod Shock Absorber-Dynamometer Test Results", Jun. 22, 1976.
Bates Marcus L.
Staab Lawrence J.
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