US3808656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable cutting tool
Assignee: Sandvik AB
•
Filing: 1973-04-02
•
Granted: 1974-05-07
•
Expires: 1993-04-02
Abstract
Abstract The invention concerns an adjustable cutting tool having cooling or flushing medium supply directed to the cutting insert.
Inventors
- 👤 B Lindskog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:20
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23B; B23B27/00; B23B27/10; Y; Y10; Y10T; Y10T407/00; Y10T407/14; Y10T407/22; Y10T407/2222; Y10T407/2252; Y10T408/00; Y10T408/44; Y10T408/45
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
Tool for internal cutting consisting of a bar (10) and a cutting head (11) applied to the front end of the bar, said cutting head being adjustable in radial direction and having an attached cutting insert (14), and said bar (10) containing a channel for supply of cooling or flushing medium, the channel consisting of connected parts (16, 17, 18) characterized in that the outer part (18) of said channel emerges at the envelope surface (22) of the bar and has such a small inclination in relation to the bar (10) and is so directed that the cooling or flushing medium jet (23) after leaving the outer part (18) of the channel follows essentially said envelope surface (22) and is directed forwards to the insert (14).
Claim 2
Dependent Claim
126 words
Tool for internal cutting consisting of a bar (10) and a cutting head (11) applied to the front end of the bar, said cutting head being adjustable in radial direction and having an attached cutting insert (14), and said bar (10) containing a channel for supply of cooling or flushing medium, the channel consisting of connected parts (16, 17, 18) characterized in that the outer part (18) of said channel emerges at the envelope surface (22) of the bar and has such a small inclination in relation to the bar (10) and is so directed that the cooling or flushing medium jet (23) after leaving the outer part (18) of the channel follows essentially said envelope surface (22) and is directed forwards to the insert (14).
Claim 3
Dependent Claim
41 words
Cutting tool according to claim 1, in which the cutting head (11) is so formed that it can divert the jet (23, 27) in outer positions and direct it towards the insert (14) particularly to the area of chip-inclination and chip-formation.
Claim 4
Dependent Claim
38 words
Cutting tool according to claim 1, in which the outer part (18) of the channel is shaped as a slot formed by a cut (19) in the bar (10) and a tongue (20) applied in the cut (19).
Claim 5
Dependent Claim
30 words
Cutting tool according to claim 1, in which the slot or outer part (18) of the channel has a smaller sectional area than inner parts (16, 17) of the channel.
Claim 6
Dependent Claim
43 words
Cutting tool according to claim 1, in which the inclination of the slot or outer part (18) of the channel in relation to the longitudinal axis of the bar is smaller than 15*, preferably at the most 10*, and preferably greater than 5*.
Claim 7
Dependent Claim
37 words
Cutting tool according to claIm 1, in which in order to obtain free passage respectively steering of the jet (23, 27), the cutting head (11) is provided with a cut (25) having a front, out-turned edge (26).
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |