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US3990338A
Expired / Lapsed
US
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Laminated saw blade
Assignee: GOMEX VERKTYG AB
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Filing: 1973-12-26
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Granted: 1976-11-09
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Expires: 1993-12-26
Abstract
Abstract The present invention relates to a method in the production of rotatable tools, such as saw blades or similar, comprising at least two preferably metallic discs interconnected by means of glue, solder or any other binding means or adhesive wherein spacing members of a uniform overall thickness are disposed between the discs to position the discs parallel to each other and to ensure a uniform layer thickness of the binding means. Said invention also relates to a means to perform the method and to the product achieved by the method.
Inventors
- 👤 Gunnar Wikner
- 👤 Percy Josefsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:53
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/02; B23D61/025; B23D61/026; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
90 words
A high speed rotational saw blade substantially free of oscillations comprising at least two discs interconnected by a layer of binding means for joining said discs together, a meshed net having a uniform overall thickness disposed between each of said at least two discs for positioning each of said at least two discs relatively to each other in substantially exact parallel relationship and ensuring uniformity in the thickness of said layer of binding means, whereby the saw blade may be rotated at high speed substantially free of noise generating oscillations.
Claim 2
Dependent Claim
90 words
A high speed rotational saw blade substantially free of oscillations comprising at least two discs interconnected by a layer of binding means for joining said discs together, a meshed net having a uniform overall thickness disposed between each of said at least two discs for positioning each of said at least two discs relatively to each other in substantially exact parallel relationship and ensuring uniformity in the thickness of said layer of binding means, whereby the saw blade may be rotated at high speed substantially free of noise generating oscillations.
Claim 3
Dependent Claim
14 words
A saw blade according to claim 1, wherein said discs are constructed of metal.
Claim 4
Dependent Claim
18 words
A saw blade according to claim 1, wherein said meshed net is of a wire or fibrous construction.
Claim 5
Dependent Claim
17 words
A saw blade according to claim 3, wherein said meshed net is constructed of a metal wire.
Claim 6
Dependent Claim
23 words
A saw blade according to claim 3, wherein said wires or fibers of said net have a thickness of 0.01 - 0.4 mm.
Claim 7
Dependent Claim
23 words
A saw blade according to claim 3, wherein said wires or fibers of said net have a thickness of 0.15 - 0.25 mm.
Claim 8
Dependent Claim
21 words
A saw blade according to claim 3, wherein said wires or fibers of said net have a thickness of 0.2 mm.
Claim 9
Dependent Claim
27 words
A saw blade according to claim 3, wherein said net has meshes which are of a width being 2 - 100 times greater than the wire thickness.
Claim 10
Dependent Claim
27 words
A saw blade according to claim 3, wherein said net has meshes which are of a width being 3 - 50 times greater than the wire thickness.
Claim 11
Dependent Claim
25 words
A saw blade according to claim 3, wherein said net has meshes which are of a width being 5-10 times greater than the wire thickness.
Claim 12
Dependent Claim
18 words
A saw blade according to claim 3, wherein said net has substantially rhombic, square or otherwise resctangular meshes.
Claim 13
Dependent Claim
26 words
A saw blade according to claim 1, wherein said meshed net together with said binder means cover substantially all of the contact surfaces between said discs.
Claim 14
Dependent Claim
34 words
A saw blade according to claim 1, wherein said meshed net together with said binder means cover a central portion of the contact surface, while leaving aperipherical annular area free of said meshed net.
Claim 15
Dependent Claim
21 words
A saw blade according to claim 13, wherein the discs are soldered along said peripheral area by means of silver solder.
Claim 16
Dependent Claim
27 words
A saw blade according to claim 14, wherein said solder is a silver solder containing 35-55% Ag, and variable amounts of Cu, Zn, Cd, and fluxing material.
Claim 17
Dependent Claim
27 words
A saw blade according to claim 14, wherein said solder is a silver solder containing 42% Ag, and variable amounts of Cu, Zn, Cd, and fluxing material.
Claim 18
Dependent Claim
22 words
A saw blade according to claim 13, wherein said peripheral annular area has a width of at least 1 - 20 mm.
Claim 19
Dependent Claim
15 words
A saw blade according to claim 1, wherein said binding means includes said meshed net.
Claim 20
Dependent Claim
18 words
A saw blade according to claim 13, wherein said discs are interconnected along said peripheral area by soldering.
Claim 21
Dependent Claim
33 words
A saw blade according to claim 15, wherein said silver solder before joining has a fusion temperature of about 600° - 625° C and a soldering temperature of about 630° - 640° C.
Claim 22
Dependent Claim
32 words
A saw blade according to claim 1 wherein said binding means is a glue into which an electrically conductive material is dispersed and wherein said discs are welded together by spot welds.
Claim 23
Dependent Claim
16 words
A saw blade according to claim 1, wherein said discs are welded together by spot welds.
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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |