Patent US3609053A successfully refreshed from Google Patents.
US3609053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broken tool detector
Assignee: ITE Imperial Corp
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Filing: 1969-04-29
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Granted: 1971-09-28
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Expires: 1989-04-29
Abstract
Abstract A coolant and broken tool detecting circuit wherein the coolant for the tool is detected when the tool breaks. The circuit includes a supply nozzle for directing coolant against the tool and a receiver nozzle on the opposite side of the tool which receives coolant when the tool is broken. There is provided a diaphragm sensor communicating with the receiver nozzle for sensing pressure changes therein and indicating when the tool is broken, and there being also provided a supply of liquid to the receiver nozzle continuously for the purpose of purging the receiver nozzle of any contamination.
Inventors
- 👤 Richard F Klem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:53
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/09; B23Q17/0904; B23Q17/0909; B23B; B23B49/00; B23B49/001; Y; Y10; Y10T; Y10T408/00; Y10T408/21
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A broken tool cooling and detecting circuit comprising: means for supplying liquid coolant under pressure, nozzle means communicating with said supply means and positioned to direct coolant against the tool, said nozzle means being spaced from the tool to provide a free stream of liquid coolant against the tool, receiver means aligned with said nozzle means for receiving said coolant when the tool does not interrupt coolant flow from the nozzle means, and means for detecting an increase in pressure in said receiver means and providing a signal indicating the failure of the tool to interrupt the coolant flow, said detecting means including a diaphragm operated sensor having a liquid chamber on one side of the diaphragm and an air chamber on the other side of the diaphragm, means for supplying air to said air chamber, said liquid chamber communicating with said receiver means.
Claim 2
Dependent Claim
144 words
A broken tool cooling and detecting circuit comprising: means for supplying liquid coolant under pressure, nozzle means communicating with said supply means and positioned to direct coolant against the tool, said nozzle means being spaced from the tool to provide a free stream of liquid coolant against the tool, receiver means aligned with said nozzle means for receiving said coolant when the tool does not interrupt coolant flow from the nozzle means, and means for detecting an increase in pressure in said receiver means and providing a signal indicating the failure of the tool to interrupt the coolant flow, said detecting means including a diaphragm operated sensor having a liquid chamber on one side of the diaphragm and an air chamber on the other side of the diaphragm, means for supplying air to said air chamber, said liquid chamber communicating with said receiver means.
Claim 3
Dependent Claim
27 words
A broken tool cooling and detecting circuit as defined in claim 1, including a fluid pressure to electric transducer responsive to fluid pressure in said air chamber.
Claim 4
Dependent Claim
32 words
A broken tool cooling and detecting circuit as defined in claim 2, said air supply means communicating with both said pressure to electric transducer and said air chamber of said detecting means.
Claim 5
Dependent Claim
179 words
A broken tool detection and tool cooling circuit, comprising: means for supplying liquid coolant under pressure, supply nozzle means communicating with said supply means for directing supply liquid toward said tool to cool said tool, said supply nozzle means being spaced from said tool to provide a free stream of coolant against said tool, receiver nozzle means positioned to receive supply liquid from said supply nozzle means when the tool is broken, means for supplying a minor portion of said supply liquid to said receiver nozzle to minimize contamination thereof, a diaphragm sensor for detecting a broken tool condition including a liquid chamber and an air chamber, said liquid chamber communicating with said means for supplying a minor portion of coolant to said receiver nozzle means so that the diaphragm sensor responds to pressure changes in the latter coolant, means for supplying air to said diaphragm sensor in an air chamber in opposition to the coolant in the liquid chamber, and an electric transducer in said air supply means for providing an electric signal when the tool is broken.
Claim 6
Dependent Claim
179 words
A broken tool detection and tool cooling circuit, comprising: means for supplying liquid coolant under pressure, supply nozzle means communicating with said supply means for directing supply liquid toward said tool to cool said tool, said supply nozzle means being spaced from said tool to provide a free stream of coolant against said tool, receiver nozzle means positioned to receive supply liquid from said supply nozzle means when the tool is broken, means for supplying a minor portion of said supply liquid to said receiver nozzle to minimize contamination thereof, a diaphragm sensor for detecting a broken tool condition including a liquid chamber and an air chamber, said liquid chamber communicating with said means for supplying a minor portion of coolant to said receiver nozzle means so that the diaphragm sensor responds to pressure changes in the latter coolant, means for supplying air to said diaphragm sensor in an air chamber in opposition to the coolant in the liquid chamber, and an electric transducer in said air supply means for providing an electric signal when the tool is broken.
References Cited (Backward Citations)
CA653373A
Cited
CA724028A
Cited
US2065702A
Cited
US3243993A
Cited
US3240410A
Cited
US3260435A
Cited
US3353402A
Cited
US3446058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |