US3633637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmental saw and method of making same
Assignee: Wallace Murray Corp
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Filing: 1970-07-06
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Granted: 1972-01-11
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Expires: 1990-07-06
Abstract
Abstract A segmented saw has its teeth-bearing edge segments attached by using a tongue and groove mounting, and removably fastening the segments by swaging metal pins extending through the tongue into counterbores formed in the groove walls on each side of the tongue in concentric or eccentric register with respect to the axis of each pin.
Inventors
- 👤 Victor A Kolesh
- 👤 Edward W Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:14
CPC Classifications
B; B23; B23D; B23D65/00; B23D61/00; B23D61/02; B23D61/023; B23D61/04; B23D61/06; B23D61/071; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/49943
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
The method of fastening tongued tooth segments in abutting relation along the grooved edge of a saw body, which includes the steps of: forming a series of holes of predetermined uniform diameter spaced along the tongued portion of one of said segments, forming generally aligned pairs of holes of greater but uniform diameter spaced along the forks of the grooved portion of the saw body, assembling the segment and saw body together with each pair of said larger diameter holes overlying a smaller tongue hole so as to form a series of holes counterbored on each side of said saw, inserting metal pins through said counterbored holes and swaging the metal of said pins into intimate contact with the walls of said holes to substantially fill said counterbored holes and prevent withdrawal of said pins thereby securing said segment against separation from said saw body.
Claim 2
Independent Claim
145 words
The method of fastening tongued tooth segments in abutting relation along the grooved edge of a saw body, which includes the steps of: forming a series of holes of predetermined uniform diameter spaced along the tongued portion of one of said segments, forming generally aligned pairs of holes of greater but uniform diameter spaced along the forks of the grooved portion of the saw body, assembling the segment and saw body together with each pair of said larger diameter holes overlying a smaller tongue hole so as to form a series of holes counterbored on each side of said saw, inserting metal pins through said counterbored holes and swaging the metal of said pins into intimate contact with the walls of said holes to substantially fill said counterbored holes and prevent withdrawal of said pins thereby securing said segment against separation from said saw body.
Claim 3
Dependent Claim
104 words
A segmented saw comprising a body portion and a series of abutting edge segments assembled in tongue and groove relation with said body portion, cylindrical holes in the tongue portions of said edge segments, larger cylindrical holes in the groove-forming portions of said saw body, said larger holes overlying said tongue holes to present holes counterbored on both sides of said saw, and a single piece of swaged metal plugging each of said counterbored holes to maintain the segments rigidly mounted on said body portion and retain said metal pieces in said holes to prevent inadvertent separation of said segments from said saw body.
Claim 4
Dependent Claim
104 words
A segmented saw comprising a body portion and a series of abutting edge segments assembled in tongue and groove relation with said body portion, cylindrical holes in the tongue portions of said edge segments, larger cylindrical holes in the groove-forming portions of said saw body, said larger holes overlying said tongue holes to present holes counterbored on both sides of said saw, and a single piece of swaged metal plugging each of said counterbored holes to maintain the segments rigidly mounted on said body portion and retain said metal pieces in said holes to prevent inadvertent separation of said segments from said saw body.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |