Piston assembly
AssigneeCooper Cameron Corporation
InventorOmar M. Kabir
Life of this patent
Estimating the term…
Abstract
Apparatus and methods for assembling a piston assembly that comprises a piston comprising a head end flange and a crank end flange and a rod having a head end shoulder and a crank end shoulder. The head end shoulder of the rod contacts the head end flange of the piston and the crank end shoulder of the rod contacts the crank end flange of the piston. A nut engages the rod such that the head end flange of the piston is disposed between the nut and the head end shoulder of said rod. A collar engages the piston such that the crank end shoulder of the rod is disposed between the collar and the crank end flange of the piston.
Claims21
A piston assembly comprising:
- a piston comprising a head end flange and a crank end flange;
- a rod having a head end shoulder and a crank end shoulder, wherein the head end shoulder of said rod contacts the head end flange of said piston and the crank end shoulder of said rod contacts the crank end flange of said piston;
- a nut engaged with said rod, wherein the head end flange of said piston is disposed between said nut and the head end shoulder of said rod;
- and
- a collar engaged with said piston, wherein the crank end shoulder of said rod is disposed between said collar and the crank end flange of said piston.
A piston assembly method comprising:
- inserting a rod through a head end flange and a crank end flange of a piston;
- capturing the head end flange of the piston between a nut engaged with the rod and a head end shoulder disposed on the rod;
- and
- capturing a crank end shoulder of the rod between the crank end flange of the piston and a collar engaged with the piston.
A piston assembly comprising:
- a rod having a first shoulder and a second shoulder, wherein the first shoulder has a smaller diameter than the second shoulder;
- a first flange disposed against the first shoulder;
- a second flange disposed against the second shoulder;
- a cylindrical body connected to said first flange and said second flange;
- a nut engaged with said rod and disposed adjacent to said first flange;
- and
- a collar engaged with said second flange and disposed adjacent to the second shoulder of said rod.
Dependencies are inferred from the claim text.