Composite piston
View Patent ↗Devices, piston components, and methods are provided for an improved piston. One embodiment for a piston component includes a base having a side to receive a piston body. A tang is provided to the base and extends outward from the side of the base which is to receive the piston body.
1. A piston, comprising:
a tang having an elongate body with a proximal end and a distal end, the elongate body centered about an axis;
a spline on the elongate body of the tang, where the spline extends longitudinally along the elongate body; and
a polymer over molded on the tang to form a piston body, where the spline receives the polymer to prevent the piston body from rotational motion relative the tang.
2. The piston of claim 1 , where the tang includes a second elongate body centered about the axis.
3. The piston of claim 2 , where the elongate body and the second elongate body of the tang have different geometries.
4. The piston of claim 1 , where the proximal end of the tang includes a hinge for connection to a base structure.
5. The piston of claim 1 , including two or more splines longitudinally aligned along the elongate body of the tang.
6. The piston of claim 1 , where the spline provides a rotational grip and a longitudinal grip for the piston body.
7. The piston of claim 1 , where the spline includes a semi-circular surface to help prevent the piston body from rotationally moving with respect to the tang.
8. The piston of claim 1 , where the tang includes a lug to provide additional longitudinal grip for the piston body.
9. The piston of claim 1 , where the polymer is a thermoset material.
10. The piston of claim 9 , where the thermoset material includes a thermoset composite including at least one of: a phenolic, an unsaturated polyester, thermoset plastic, and a vinyl ester.
11. A piston, comprising:
a piston body having sectional portions with surfaces defining a first orifice and a second orifice; and
a tang, where at least a portion of the tang adjoins and conforms to the first orifice of the piston body and where a fastener in the second orifice attaches the piston body to the tang.
12. The piston of claim 11 , where the tang includes a threaded portion along its length to receive the piston body.
13. The piston of claim 11 , where the piston body includes two sectional portions.
14. The piston of claim 11 , where the tang extends from a yoke.
15. The piston of claim 14 , where the tang is hinged to the yoke.
16. The piston of claim 14 , where the tang extends from a first arm of the yoke at an angle of 8 degrees to 18 degrees relative a perpendicular orientation of the tang and the first arm.
17. The piston of claim 11 , where the tang can include at least one spline extending longitudinally along a portion of the tang.
18. The piston of claim 11 , where the piston body is a thermoset material.
19. The piston of claim 18 , where the thermoset material includes a thermoset composite including at least one of: a phenolic, an unsaturated polyester, thermoset plastic, and a vinyl ester.
20. A piston, comprising
a tang having an elongate body with a proximal end and a distal end;
a spline on the elongate body of the tang; and
a piston body with sectional portions of an over molded polymer having an orifice that conforms and joins to at least a portion of the tang, where the spline engages the piston body to prevent the piston body from rotational motion relative the tang.