Pipe joints or couplings – Flexible joint – rigid members
Patent
1980-09-05
1982-11-23
Arola, Dave W.
Pipe joints or couplings
Flexible joint, rigid members
285264, 285268, F16L 2700
Patent
active
043602266
ABSTRACT:
The present invention relates to a connector for mechanically joining members having large force loading while enabling limited relative angular movement therebetween. The connector employs a plurality of stacked metal roll plates to provide rolling metal-to-metal contact while avoiding sliding movement of contacting members transmitting the force load between connector members. Each of the roll plates is provided with a concave and convex load carrying surface with the radius of the concave surface greater than that of the convex surface to provide rolling rather than sliding contact. To obtain universal angular movement, one embodiment of the connector employs a single stack of spherical surface roll plates while a second embodiment employs a plurality of roll plate stacks having substantially cylindrical load carrying surfaces. The roll plates are maintained in operating alignment by resilient members extending through the stack and may be enclosed for protection by a resilient cover forming a chamber that may be filled by a lubricant.
REFERENCES:
patent: 2536452 (1951-01-01), Leissler
patent: 2680005 (1954-06-01), Storm
patent: 3243209 (1966-03-01), Chertok
patent: 3323842 (1967-06-01), Hanson
patent: 3504902 (1970-04-01), Irwin
patent: 3504904 (1970-04-01), Irwin et al.
patent: 3636716 (1972-01-01), Castellanos
patent: 4183556 (1980-01-01), Schwemmer
Arola Dave W.
Dodge, II John H.
Hydril Company
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