US3791660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for gripping, driving and supplying coolant to a cutting tool having coolant passages therein
Assignee: Bendix Corp
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Filing: 1973-01-09
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Granted: 1974-02-12
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Expires: 1993-01-09
Abstract
Abstract An oil conduit twist drill series and method of making are disclosed which have a common straight shank in each series and a tang drive so as to minimize machining costs, sealing problems, and eliminate the use of adapters involved with taper shank oil conduit drills and such drills which have varying diameter straight shanks.
Inventors
- 👤 R Bostley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:07
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23B; B23B51/00; B23B51/06; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17111; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
A coolant inducer unit for gripping and driving a cutting tool shank and supplying coolant to passages formed in such cutting tool and opening through the ends of said cutting tool comprising: an inducer body; gripping means carried by said inducer body for directly gripping a straight-sided cutting tool shank; drive means for creating a direct positive drive connection of said unit with a gripped cutting tool including a recess in said unit shaped to cooperate with a positive drive surface formed on the end of a cutting tool shank; sealing means carried by said inducer body for engaging a cutting tool shank periphery; coolant supply means for supplying coolant to said passages in such cutting tool including a stationary collar surrounding said inducer body whereby a positive drive connection for a coolant cutting tool is produced without the use of taper shanks or adapter units.
Claim 2
Dependent Claim
146 words
A coolant inducer unit for gripping and driving a cutting tool shank and supplying coolant to passages formed in such cutting tool and opening through the ends of said cutting tool comprising: an inducer body; gripping means carried by said inducer body for directly gripping a straight-sided cutting tool shank; drive means for creating a direct positive drive connection of said unit with a gripped cutting tool including a recess in said unit shaped to cooperate with a positive drive surface formed on the end of a cutting tool shank; sealing means carried by said inducer body for engaging a cutting tool shank periphery; coolant supply means for supplying coolant to said passages in such cutting tool including a stationary collar surrounding said inducer body whereby a positive drive connection for a coolant cutting tool is produced without the use of taper shanks or adapter units.
Claim 3
Dependent Claim
30 words
The unit of claim 1 wherein said drive means comprises a recess in said unit shaped to cooperate with a tang formed on the end of a cutting tool shank.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |