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US 2016/0096295 A1Published application
Molding System and Method Having Dual Split Ring Plunger
AssigneeCaterpillar Inc.
InventorAndrew R. Stodgel
Life of this patent
Estimating the term…
Abstract
A plunger is provided. The plunger includes a top plat and a bottom plate coupled to the top plate. A first split ring is provided between the top plate and the bottom plate and is coupled to the top plate. A second split ring is provided between the first split ring and the bottom plate and is coupled to the first split ring.
Claims20
A plunger comprising:
- a top plate;
- a bottom plate coupled to the top plate;
- a first split ring between the top plate and the bottom plate and coupled to the top plate;
- and
- a second split ring between the first split ring and the bottom plate and coupled to the first split ring.
2 more elements
A molding system, comprising:
- a pot configured to hold a molding material;
- and
- a plunger configured to move along an inner wall of the pot to push the molding material into a mold cavity through a plurality of sprues at a base of the pot, said plunger including:
- a top plate,
- a bottom plate coupled to the top plate by a pair of spring members,
- a first split ring between the top plate and the bottom plate and coupled to the top plate, and
- a second split ring between the first split ring and the bottom plate and coupled to the first split ring.
4 more elements
A method of making a plunger, comprising:
- providing a top plate;
- providing a bottom plate coupled to the top plate by a spring member;
- providing a first split ring between the top plate and the bottom plate and coupled to the top plate;
- and
- providing a second split ring between the first split ring and the bottom plate and coupled to the first split ring.
2 more elements
Dependencies are inferred from the claim text.