Patent US3739442A successfully refreshed from Google Patents.
US3739442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tools
Assignee: Individual
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Filing: 1971-12-27
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Granted: 1973-06-19
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Expires: 1991-12-27
Abstract
Abstract A cutting tool having a rotatable cutter body provided with spaced apart slots around its periphery. In each slot a cutter blade is accurately positioned by an anvil and a locating spacer and then locked into place by a wedge. The locating spacers provide a maximum support area for the cutter blades and are prevented from turning by a shoulder on its locating surface. Also the locating spacers can be of different sizes and selected to accurately control the cutting tool location dimensions.
Inventors
- 👤 N Lovendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:35
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2265; B23C5/2278; B23C5/24; B23C5/2475; B23C2200/00; B23C2200/04; B23C2200/0416; B23C2200/12; B23C2200/125; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/1914; Y10T407/192; Y10T407/1922; Y10T407/1934; Y10T407/1938; Y10T407/23
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
390 words
In combination; a rotatable cutter body having a plurality of slots spaced around the periphery of the cutter body and opening outwardly therefrom, each slot being defined by a plurality of locating surfaces including a bottom surface having a shoulder laterally extending therefrom, confronting side surfaces laterally extending from the bottom surface, and an intermediate side surface extending laterally from the bottom surface and being positioned between the confronting side surfaces; a plurality of L-shaped anvils one detachable positioned in each slot and in engagement with oNe of the confronting side surfaces and the intermediate side surface, the anvils each having adjacent blade locating surfaces; a plurality of indexable cutter blades each having opposed parallel faces and a plurality of edges provided with cutting surfaces, one of the plurality of cutter blades being positioned in each slot so as to extend edgewise therein with an adjacent edge thereof and one face thereof in engagement respectively with the locating surfaces on a respective one of the anvils; a plurality of blade locating members one positioned in each slot, each blade locating member having opposed substantially parallel flat faces, a threaded hole therein extending between the faces and a substantially flat side surface; screw means removably retaining one of the plurality of blade locating members in each slot so that the opposite faces of each blade locating member engage respectively the bottom surface and one of the edges of a respective one of the cutter blades and the flat side surface is positoned adjacent to and engagable with the bottom surface shoulder to prevent turning of the locating member and to project the cutting surface of the cutting blade a certain distance outside the slot; a plurality of wedge members one positioned in each slot, each wedge member having a T-shaped slot therein provided with an external opening extending therefrom, a tapered surface engagable with the other face of a respective one of the cutter blades and an opposite surface engagable with the other of the confronting side surfaces of the associated slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the respective cutter blade; and screw means received by the T-shaped slot and threadily engagable with the cutter body for retaining the wedge member in the self-locking relationship with the respective cutter blade.
Claim 2
Dependent Claim
390 words
In combination; a rotatable cutter body having a plurality of slots spaced around the periphery of the cutter body and opening outwardly therefrom, each slot being defined by a plurality of locating surfaces including a bottom surface having a shoulder laterally extending therefrom, confronting side surfaces laterally extending from the bottom surface, and an intermediate side surface extending laterally from the bottom surface and being positioned between the confronting side surfaces; a plurality of L-shaped anvils one detachable positioned in each slot and in engagement with oNe of the confronting side surfaces and the intermediate side surface, the anvils each having adjacent blade locating surfaces; a plurality of indexable cutter blades each having opposed parallel faces and a plurality of edges provided with cutting surfaces, one of the plurality of cutter blades being positioned in each slot so as to extend edgewise therein with an adjacent edge thereof and one face thereof in engagement respectively with the locating surfaces on a respective one of the anvils; a plurality of blade locating members one positioned in each slot, each blade locating member having opposed substantially parallel flat faces, a threaded hole therein extending between the faces and a substantially flat side surface; screw means removably retaining one of the plurality of blade locating members in each slot so that the opposite faces of each blade locating member engage respectively the bottom surface and one of the edges of a respective one of the cutter blades and the flat side surface is positoned adjacent to and engagable with the bottom surface shoulder to prevent turning of the locating member and to project the cutting surface of the cutting blade a certain distance outside the slot; a plurality of wedge members one positioned in each slot, each wedge member having a T-shaped slot therein provided with an external opening extending therefrom, a tapered surface engagable with the other face of a respective one of the cutter blades and an opposite surface engagable with the other of the confronting side surfaces of the associated slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the respective cutter blade; and screw means received by the T-shaped slot and threadily engagable with the cutter body for retaining the wedge member in the self-locking relationship with the respective cutter blade.
Claim 3
Dependent Claim
368 words
A cutting tool composing a rotatable cutter body having a plurality of slots spaced around the cutter body and opening outwardly therefrom, each slot being defined by a plurality of locating surfaces including a bottom surface, confronting side surfaces laterally extending from the bottom surface, and an intermediate side surface extending laterally from the bottom surface and being positioned between the confronting side surfaces, the bottom surface having a shoulder laterally extending therefrom and substantially parallel to and spaced from one of the confronting side surfaces; each slot having positioned therein an anvil detachably secured to the cutter body and in engagement with one of the confronting side surfaces and the intermediate side surface, the anvil having adjacent blade locating surfaces; a cutter blade having opposed parallel faces and opposite edges provided with cutting surfaces, the cutter blade being positioned in the slot so as to extend edgewise therein with an adjacent edge thereof and one face thereof in engagement respectively with the locating surfaces on the anvil; a blade locating member positioned on the bottom surface of the slot and having a cylindrical like configuration provided with opposed substantially parallel flat faces, a threaded hole therein extending between the faces, and a substantially flat side surface; differential screw means removably retaining the blade locating member in the slot so that the opposite faces of the blade locating member engage respectively the bottom surface and one of the edges of the cutter blade and the flat side surface engages the bottom surface shoulder to prevent turning of the locating member and to cause the cutting surface on the cutter blade to project from the slot a certain distance; a wedge member having a T-shaped slot therein provided with an external opening extending therefrom, a tapered surface engagable with the other face of the cutter blade and an opposite surface engagable with the other of the confronting side surfaces of the slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the cutter Blade; and screw means received by the T-shaped slot and threadily engaged with the cutter body for retaining the wedge member in the self-locking relationship with the cutter blade.
Claim 4
Dependent Claim
368 words
A cutting tool composing a rotatable cutter body having a plurality of slots spaced around the cutter body and opening outwardly therefrom, each slot being defined by a plurality of locating surfaces including a bottom surface, confronting side surfaces laterally extending from the bottom surface, and an intermediate side surface extending laterally from the bottom surface and being positioned between the confronting side surfaces, the bottom surface having a shoulder laterally extending therefrom and substantially parallel to and spaced from one of the confronting side surfaces; each slot having positioned therein an anvil detachably secured to the cutter body and in engagement with one of the confronting side surfaces and the intermediate side surface, the anvil having adjacent blade locating surfaces; a cutter blade having opposed parallel faces and opposite edges provided with cutting surfaces, the cutter blade being positioned in the slot so as to extend edgewise therein with an adjacent edge thereof and one face thereof in engagement respectively with the locating surfaces on the anvil; a blade locating member positioned on the bottom surface of the slot and having a cylindrical like configuration provided with opposed substantially parallel flat faces, a threaded hole therein extending between the faces, and a substantially flat side surface; differential screw means removably retaining the blade locating member in the slot so that the opposite faces of the blade locating member engage respectively the bottom surface and one of the edges of the cutter blade and the flat side surface engages the bottom surface shoulder to prevent turning of the locating member and to cause the cutting surface on the cutter blade to project from the slot a certain distance; a wedge member having a T-shaped slot therein provided with an external opening extending therefrom, a tapered surface engagable with the other face of the cutter blade and an opposite surface engagable with the other of the confronting side surfaces of the slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the cutter Blade; and screw means received by the T-shaped slot and threadily engaged with the cutter body for retaining the wedge member in the self-locking relationship with the cutter blade.
Claim 5
Dependent Claim
298 words
A cutting tool comprising a rotatable cutter body having a plurality of slots spaced around the cutter body and opening outwardly therefrom each slot being defined by plurality of locating surfaces including the bottom surface having a shoulder laterally extending therefrom confronting side surfaces laterally extending from the bottom surface and another side surface laterally from the bottom surface and being positioned between the confronting side surfaces an anvil detachably positioned in the slot and an engagement with one of the confronting side surfaces and the intermediate side surface, the anvil having adjacent blade locating surfaces; blade locating member positioned on the bottom surface of the slot and having a threaded hole therein permitted threaded entrance in one end thereof only and a substantially flat side surface; a cutter blade positioned on the anvil blade locating surfaces for establishing predetermined rake angles and having an end thereof in engagement with the blade locating member and the opposite end thereof provided with a cutting edge extending from the slot a certain distance determined by the locating member; a differential screw having a certain hand threaded end engaged with the opposite end of the hole in removably retaining the blade locating member and a certain opposite hand threaded end engaged with the cutter body to removably retain the blade locating member in place against the bottom respectively with the bottom surface and the flat side surface engaged with the bottom surface shoulder to prevent turning of the locating member; a wedge member detachably secured to the cutter body and having a tapered surface engagable with the cutter blade and an opposite surface engagable with the confronting side surfaces of the slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the cutter blade.
Claim 6
Dependent Claim
298 words
A cutting tool comprising a rotatable cutter body having a plurality of slots spaced around the cutter body and opening outwardly therefrom each slot being defined by plurality of locating surfaces including the bottom surface having a shoulder laterally extending therefrom confronting side surfaces laterally extending from the bottom surface and another side surface laterally from the bottom surface and being positioned between the confronting side surfaces an anvil detachably positioned in the slot and an engagement with one of the confronting side surfaces and the intermediate side surface, the anvil having adjacent blade locating surfaces; blade locating member positioned on the bottom surface of the slot and having a threaded hole therein permitted threaded entrance in one end thereof only and a substantially flat side surface; a cutter blade positioned on the anvil blade locating surfaces for establishing predetermined rake angles and having an end thereof in engagement with the blade locating member and the opposite end thereof provided with a cutting edge extending from the slot a certain distance determined by the locating member; a differential screw having a certain hand threaded end engaged with the opposite end of the hole in removably retaining the blade locating member and a certain opposite hand threaded end engaged with the cutter body to removably retain the blade locating member in place against the bottom respectively with the bottom surface and the flat side surface engaged with the bottom surface shoulder to prevent turning of the locating member; a wedge member detachably secured to the cutter body and having a tapered surface engagable with the cutter blade and an opposite surface engagable with the confronting side surfaces of the slot, the tapered surface being at a certain angle so as to form a self-locking relationship with the cutter blade.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |