# US 5,702,211 A · Cutting tool coolant device

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- Number: US 5,702,211 A
- Document ID: US5702211A
- Status: Granted
- Kind: A
- Application number: 08/657,325
- Filed: 1996-06-03
- Granted: 1997-12-30
- Earliest claimed: 1996-06-03
- Inventors: David J. Roemer; Scott Johnson
- Web page: https://patentgrep.com/patent/US5702211A

## CPC

- B23B 31/006: {Conical shanks of tools}
- B23B 31/20125: {Axially fixed cam, moving jaws}
- B23B 2231/36: Sealed joints
- B23B 2250/12: Cooling and lubrication
- Y10T 279/17111: Fluid-conduit drill holding
- Y10T 408/44: with means to apply transient, fluent medium to work or product
- Y10T 408/94: Tool-support
- Y10T 408/95: with tool-retaining means
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A tool holder includes a body with a central internal threaded section, and a coolant coupling device within the tool holder. The coolant coupling device includes a threaded body section to engage the internal threads of the tool holder, a smaller diameter nose section, and a coolant passage through the device to align with a coolant passage in a cutting tool. A sealing ring around the end of the coolant passage forms a seal when the coolant coupling device abuts against a tool shank. The body section includes a wrench slot by which to turn the device for axial movement within the tool holder.

## Claims

### Claim 1

A tool holder including a body with an axial through passage having a central internal threaded section, and a coolant coupling device, said coolant coupling device including: a threaded body section to engage said internal threaded section of said tool holder, and a nose section of smaller diameter than said body section; said body and nose sections together defining a coolant passage therethrough, said passage including a counterbore at the end thereof in said nose section and a chamfer at the end thereof in said body section; a sealing ring disposed in said counterbore; and a slot at the base of said chamfer for engagement with a tool to turn said coolant coupling device for axial movement thereof within said tool holder.

### Claim 2

A tool holder defining an internally threaded through passage, and including a coolant coupling device within said passage;
said coolant coupling device defining a coolant passage therethrough and including a threaded body section for threaded engagement within said passage, and a nose section of smaller diameter than said body section;
said nose section including a sealing ring around one outer end of said coolant passage;
said body section including a slot for engagement by a tool to turn said body section for axial movement thereof within said tool holder, said coolant passage in said body section having a funnelled opening to guide said tool into said slot.