Patent US3735787A successfully refreshed from Google Patents.
US3735787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud and dado cutter
Assignee: PLATT EA
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Filing: 1970-10-28
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Granted: 1973-05-29
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Expires: 1990-10-28
Abstract
Abstract A series of wooden studs are clamped into a chain-feed means which moves them transversely of their length past a plurality of stations. At one station they are cut to length and at other stations dados are cut in them; thus producing a plurality of identical studs with dados therein.
Inventors
- 👤 H A Siel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:21
CPC Classifications
B; B27; B27B; B27B25/00; B27B25/04; B27B5/00; B27B5/16; B27B5/22; B27B5/228; B27F; B27F1/00; B27F1/02; B27F1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2192; Y10T83/2194; Y10T83/647; Y10T83/6476; Y10T83/6483; Y10T83/654; Y10T83/6542; Y10T83/6584; Y10T83/6587
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
A wood working machine comprising: a. a frame including b. structure forming a working level, c. feed means for feeding wooden studs transversely across working level, d. a cutoff saw mounted on e. a cutoff shaft journaled to the frame, f. said studs parallel to said cutoff shaft, g. power means on the frame for rotating said cutoff shaft, h. said cutoff saw in the working level, j. dado heads mounted on k. dado shafts journaled to the frame, m. each dado shaft parallel to said cutoff shaft, n. power means on the frame for rotating said dado shafts, o. each dado head in the working level, p. two feed shafts journaled to the frame, q. said feed shafts parallel to said cutoff shaft, r. two chains trained over s. sprockets on said feed shafts, and t. clip means on the chains for grasping the studs, including: i. U-shaped clips adapted to receive the stud within the ''''U'''' having ii. a bight flat to the chain, and iii. a self-threading screw iv. threaded through the bight of the clip, v. said screw functioning as a pin to embed itself into the stud.
Claim 2
Dependent Claim
192 words
A wood working machine comprising: a. a frame including b. structure forming a working level, c. feed means for feeding wooden studs transversely across working level, d. a cutoff saw mounted on e. a cutoff shaft journaled to the frame, f. said studs parallel to said cutoff shaft, g. power means on the frame for rotating said cutoff shaft, h. said cutoff saw in the working level, j. dado heads mounted on k. dado shafts journaled to the frame, m. each dado shaft parallel to said cutoff shaft, n. power means on the frame for rotating said dado shafts, o. each dado head in the working level, p. two feed shafts journaled to the frame, q. said feed shafts parallel to said cutoff shaft, r. two chains trained over s. sprockets on said feed shafts, and t. clip means on the chains for grasping the studs, including: i. U-shaped clips adapted to receive the stud within the ''''U'''' having ii. a bight flat to the chain, and iii. a self-threading screw iv. threaded through the bight of the clip, v. said screw functioning as a pin to embed itself into the stud.
Claim 3
Dependent Claim
51 words
The invention as defined in claim 1 with the additional limitation of u. shuck means on the frame for shucking the studs from the clip means, including: i. a strap attached to the frame adjacent each chain, ii. said strap extending from below the working level to above the work level.
Claim 4
Dependent Claim
33 words
The invention as defined in claim 1 with the additional limitation of u. guide means on the frame for guiding the studs in the correct relationship to said cutoff saw and dado heads.
Claim 5
Dependent Claim
40 words
The invention as defined in claim 3 with the additional limitation of v. limit means on the frame for limiting the studs to the working level so that the depth of the dado cut by the dado heads is determined.
Claim 6
Dependent Claim
77 words
The invention as defined in claim 4 with the additional limitations of w. said frame including rails, x. parallel to said cutoff shaft, y. carriages mounted for movement along said rails, z. said power means each being an electric motor, aa. each of said dado shafts and its electric motor mounted on one of said carriages, whereby the position of said dado is readily adjusted, and aaa. a belt driving the dado shaft from the electric motor.
Claim 7
Dependent Claim
61 words
The invention as defined in claim 5 with the additional limitations of bb. each of said dado shafts journaled to two pedestals each of which are telescoped within cc. a tube connected to one of said carriages, dd. said pedestals transverse of said working level so that by moving the pedestals in the tubes the depth of dado may be adjusted.
Claim 8
Dependent Claim
51 words
The invention as defined in claim 6 with the additional limitation of ee. shuck means on the frame for shucking the studs from the clip means, including: i. a strap attached to the frame adjacent each chain, ii. said strap extending from below the working level to above the work level.
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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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |