US3694879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder and method of using
Assignee: Kennametal Inc
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Filing: 1970-09-28
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Granted: 1972-10-03
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Expires: 1990-09-28
Abstract
Abstract The specification discloses a tool holder, especially for receiving throw away inserts in which the tool holder is a barlike member adapted for being clamped in a tool support member. The bar-like member has abutment elements thereon to abut the support member to locate the tool holder in a predetermined position. The regions for receiving the abutments are threaded for receiving threaded abutment screws and are adapted at their outer ends to receive pressed in abutment elements which can be ground to a precise dimension whereby the mounting of the tool holder in the support member will provide for precise fixed positioning of an insert mounted on the holder.
Inventors
- 👤 Wilbur L Kennicott
- 👤 James W Heaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:06
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/04; Y; Y10; Y10T; Y10T407/00; Y10T407/11; Y10T407/22; Y10T407/2222; Y10T407/2226; Y10T407/2238; Y10T407/224; Y10T407/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
In a tool holder; a shank having means to support a cutting element at one end, said shank being receivable in a support and being adapted for being fixedly clamped to the support, said support having at least two angularly related walls which respectively face one side of said shank and the end of said shank opposite the said one end thereof, bores in said shank to receive abutment elements which protrude from said bores for engagement with said walls of said support to locate said tool holder relative to the support, said bores having at least a portion of the length thereof threaded, and abutment elements receivable in said bores and including screw threaded first abutment elements adapted for adjustable threaded engagement with the threaded portions of said bores and second abutment elements adapted for being press fitted in said bores, said bores being distributed along the length of said one side of said shank and the said end of the shank opposite said one end thereof, said shank and each of said second abutment elements comprising cooperating elements of interengaging abutment means for fixedly locating said second abutment elements relative To the said shank when press fitted in the respective said bores.
Claim 2
Dependent Claim
204 words
In a tool holder; a shank having means to support a cutting element at one end, said shank being receivable in a support and being adapted for being fixedly clamped to the support, said support having at least two angularly related walls which respectively face one side of said shank and the end of said shank opposite the said one end thereof, bores in said shank to receive abutment elements which protrude from said bores for engagement with said walls of said support to locate said tool holder relative to the support, said bores having at least a portion of the length thereof threaded, and abutment elements receivable in said bores and including screw threaded first abutment elements adapted for adjustable threaded engagement with the threaded portions of said bores and second abutment elements adapted for being press fitted in said bores, said bores being distributed along the length of said one side of said shank and the said end of the shank opposite said one end thereof, said shank and each of said second abutment elements comprising cooperating elements of interengaging abutment means for fixedly locating said second abutment elements relative To the said shank when press fitted in the respective said bores.
Claim 3
Dependent Claim
58 words
A tool holder according to claim 1 in which at least some of said bores are provided with counterbored ends in which the respective second abutment elements are pressed, and the shoulders at the bottom of the counterbores in said bores and the inner ends of said second abutment elements forming said cooperating elements of interengaging abutment means.
Claim 4
Dependent Claim
101 words
A tool holder according to claim 1 in which at least one of said bores is threaded completely to the end thereof in which the respective second abutment element is mounted and the pertaining said second abutment element is adapted for being pressed into the bore while deforming the threads in the bore and includes a shoulder facing said shank and engageable with the side of said shank adjacent the respective bore to locate the said second abutment element on the shank, said shoulder and said side of the shank adjacent said bore forming said cooperating elements of interengaging abutment means.
Claim 5
Dependent Claim
34 words
A tool holder according to claim 2 in which at least the said second abutment elements in said counterbored ends of said bores are in the form of cylindrical button members having knurled peripheries.
Claim 6
Dependent Claim
40 words
A tool holder according to claim 3 in which the said second abutment element includes a further shoulder spaced axially outwardly from the first mentioned shoulder for engagement by a prying tool to remove the abutment element from the bore.
Claim 7
Dependent Claim
43 words
A tool holder according to claim 1 in which said shank is bar-like and at least two of said bores are disposed in spaced relation along said one side of said shank and extend completely through the shank in the lateral direction thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |