Load decoupler
AssigneeBettis Corporation
InventorsMichael E. Rembert, Robert W. Milner
Life of this patent
Estimating the term…
Abstract
Device for absorbing lateral forces generated as a result of a linearly reciprocating pin causing rotation of a scotch yoke, the device including a guide block guided along a guide rod, the guide block carrying a yoke engaging pin as well as having opposed connector-receiving cavities; connectors linking each cavity with opposed rod members, each connector having opposed curved surfaces and one or more flats intermediate adjacent such surfaces, the guide block positioning a plurality of annular members each having an arcuate surface slidably receiving one such curved surface, said block also including a locking device for engagement with each connector flat.
Claims14
A device for dissipating lateral forces generated on converting linear motion to rotary motion, said device comprising:
- a linearly movable first rod member linked at one end thereof to force transmitting means via connector means;
- means for restricting relative rotation between said first rod member and said force transmitting means;
- rotatable member engaged with said force transmitting means via a pin connection;
- said connector means including;
- hemispherically surfaced head linked to said first rod, and spherical washer means slidably engaging said head, said head and said washer means carried in a cavity of said force transmitting means, said head comprising oppositely facing curved surfaces and said washer means comprising oppositely facing, concave surfaced washers, each washer having a concave surface for slidably engaging said head;
- said rotation restricting means includes stop means provided the wall of said cavity and stop engaging means provided said head;
- and
- said stop engaging means comprises at least one flattened surface intermediate said curved surfaces.
An actuator for converting linear motion to rotary motion, said actuator comprising:
- a linearly movable first rod member linked at one end thereof to force transmitting means via connector means;
- means for restricting relative rotation between said first rod member and said force transmitting means;
- rotatable yoke member engaged with said force transmitting means via pin means carried by said force transmitting means;
- and
- said connector means includes a hemispherically surfaced head linked to said first rod, and said connector means also includes spherical washer means carried by said force transmitting means, said washer means having a concave surface for slidably engaging said head.
A valve actuator having force transmitting means with a device for dissipating side loads, said actuator including:
- linearly movable first and second rod members having facing first ends, each said first end being linked to force transmitting means via an associated connector means;
- means for restricting relative rotation between each of said rod members and said force transmitting means;
- rotatable yoke member engaged with said force transmitting means via pin means carried by said force transmitting means;
- and
- each said connector means including both a hemispherically surfaced head linked to its respective rod, and spherical washer means carried by said force transmitting means having a concave surface for slidable engagement with said head.
Dependencies are inferred from the claim text.