US4127045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Band saw machine
Assignee: SIMONDS INDUSTRIES Inc A DE CORP
•
Filing: 1977-12-05
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Granted: 1978-11-28
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Expires: 1997-12-05
Abstract
Abstract A band saw machine is provided with a guide for the blade which repeatedly moves the cutting reach of the blade laterally of its longitudinal axis and in the plane of the reach while the blade is advancing longitudinally to provide greatly improved sawing speed.
Inventors
- 👤 Joseph T. Blucher
- 👤 Stephen R. Crosby
- 👤 Dennis W. Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:38
CPC Classifications
B; B23; B23D; B23D55/00; B23D55/08; B23D55/088; B23D55/089; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7101; Y10T83/7114; Y10T83/7145; Y10T83/7264
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
A band saw machine having a table for supporting in sawing position an article to be sawed, a frame, an endless saw blade mounted on said frame to provide a cutting reach adjacent said saving position and a return reach, and means for advancing said cutting reach in said frame longitudinally in the direction of its axis, wherein the improvement comprises means for repeatedly moving said cutting reach and said supporting table toward each other in a direction transverse to the longitudinal axis of the reach and in the plane of the reach while said cutting reach is being advanced longitudinally.
Claim 2
Dependent Claim
101 words
A band saw machine having a table for supporting in sawing position an article to be sawed, a frame, an endless saw blade mounted on said frame to provide a cutting reach adjacent said saving position and a return reach, and means for advancing said cutting reach in said frame longitudinally in the direction of its axis, wherein the improvement comprises means for repeatedly moving said cutting reach and said supporting table toward each other in a direction transverse to the longitudinal axis of the reach and in the plane of the reach while said cutting reach is being advanced longitudinally.
Claim 3
Dependent Claim
25 words
A band saw machine as claimed in claim 1 in which said frame is mounted with said cutting reach extending generally horizontally above said table.
Claim 4
Dependent Claim
51 words
A band saw machine as claimed in claim 2 in which said frame is pivotally mounted with said cutting reach above said table to permit the weight of said frame to load said cutting reach transversely of its longitudinal axis toward said table while said cutting reach is being advanced longitudinally.
Claim 5
Dependent Claim
60 words
A band saw machine as claimed in claim 1 in which said frame and said table are mounted for movement toward and away from each other, and including means for continuously urging said frame and said table toward each other to load said cutting reach transversely of its longitudinal axis toward said table while said reach is being advanced longitudinally.
Claim 6
Dependent Claim
30 words
A band saw machine as claimed in claim 3 in which said means for repeatedly moving said sawing reach includes a rotary step cam and means for rotating said cam.
Claim 7
Dependent Claim
30 words
A band saw machine as claimed in claim 4 in which said means for repeatedly moving said sawing reach includes a rotary step cam and means for rotating said cam.
Claim 8
Dependent Claim
78 words
A band saw machine as claimed in claim 5 in which said means is mounted on said frame and includes a saw guide for said cutting reach, said saw guide having a surface bearing against the rear edge of said blade opposite the cutting edge, having a second surface bearing against said cam, and being mounted for sliding movement in a direction transverse to the longitudinal axis of said sawing reach in position to follow said step cam.
Claim 9
Dependent Claim
79 words
A band saw machine as claimed in claim 6 in which said means is mounted on said frame and includes a saw guide for said sawing reach, said saw guide having a surface bearing against the rear edge of said blade opposite the cutting edge and having a second surface bearing against said cam, and being mounted for sliding movement in a direction transverse to the longitudinal axis of said cutting reach in position to follow said step cam.
Claim 10
Dependent Claim
22 words
A band saw machine as claimed in claim 7 including means for urging said saw guide second surface yieldingly against said cam.
Claim 11
Dependent Claim
22 words
A band saw machine as claimed in claim 8 including means for urging said saw guide second surface yieldingly against said cam.
Claim 12
Dependent Claim
29 words
A band saw machine as claimed in claim 3 in which a hydraulic cylinder is connected between said frame and said table to assist in loading said cutting reach.
Claim 13
Dependent Claim
35 words
A band saw machine as claimed in claim 4 in which said means for continuously urging said frame and said table toward each other comprises a hydraulic cylinder connected between said frame and said table.
References Cited (Backward Citations)
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Cited
US3752022A
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US3656261A
Cited
US3715946A
Cited
US3941022A
Cited
US4023448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |