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US 9,839,964 B2Granted
Expansion chuck
AssigneeKennametal Inc.
InventorJosef K. Herud
Life of this patent
Estimating the term…
Abstract
Expansion chuck (1) with a base body (9) and an expansion sleeve (10) which is surrounded by a receptacle (6) for a tool, wherein the expansion sleeve (10) inside the base body (9) and at the front end (3) of the receptacle (6) is connected pressure-tight to the base body (9), thus forming a pressure chamber (11) between the base body (9) and the expansion sleeve (10), characterized in that the expansion sleeve (10) at the front end (3) of the base body (9) extends radially outward to an connecting section (34), where it is connected to the base body (9) in a pressure-tight manner.
Claims17
An expansion chuck comprising a base body;
- and an expansion sleeve surrounding a receptacle for a tool, wherein the expansion sleeve is inside the base body and is connected pressure-tight at a front end of the receptacle, thus forming a pressure chamber between the base body and the expansion sleeve, wherein the expansion sleeve at a front end of the base body extends radially outward to a connecting section, where it is connected to the base body in a pressure-tight manner;
- and wherein an annular gap extends beyond the pressure chamber in a direction of the front end of the base body.
Dependencies are inferred from the claim text.