US3754583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing mechanism for dental block wood molding
Assignee: Individual
•
Filing: 1972-05-31
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Granted: 1973-08-28
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Expires: 1992-05-31
Abstract
Abstract In a conventional radial arm type power saw adapted for dado cutting operations, an indexing mechanism is adapted to draw stock lumber past the sawing blades at predetermined evenly spaced intervals, and simultaneous with each spaced interval, is adapted to cause the saw to cut a notch of predetermined dimension in the stock lumber thereby continuously forming dental block wood molding.
Inventors
- 👤 H Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:53
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/20; B27B5/201; B23; B23D; B23D47/00; B23D47/04; B23D47/042; B23D47/08; B23D47/10; B27F; B27F5/00; B27F5/02; Y; Y10; Y10T; Y10T408/00; Y10T408/52; Y10T408/54; Y10T83/00; Y10T83/444; Y10T83/463; Y10T83/4635
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
274 words
In combination with a radial wood saw of the type having a cantilevered arm supported above a worktable providing a work support surface, a saw support frame movable back and forth on said arm and a driven notching type saw blade supported on said saw frame and movable therewith along a path of cutting above and across the worktable surface, an auxiliary dental block molding indexing mechanism, comprising: a. guide means fixed to the saw worktable surface and adapted to provide a fixed guide for sliding movement of an elongated dental block molding work piece in a fixed path perpendicular to the saw blade cutting path whereby said saw blade when moved in its path across the path of said work piece may notch the same; b. an elongated indexing arm having a flexibly mounted tip portion, said indexing arm being slidably mounted at one end at a position laterally removed from the saw blade path and being adapted to move back and forth for a predetermined distance adapting said arm tip portion to move parallel to the direction of, above and to slide on the work piece; and c. means for actuating said indexing arm wherein said tip portion after a first notch has been cut in said work piece by said saw blade and while said saw blade is withdrawn may engage the leading edge of said first notch and advance said work piece along said guide means said predetermined distance and thereafter following each notching of the work piece may so engage each successive notch until said work piece has been fully notched to produce a dental mold block molding therefrom.
Claim 2
Dependent Claim
274 words
In combination with a radial wood saw of the type having a cantilevered arm supported above a worktable providing a work support surface, a saw support frame movable back and forth on said arm and a driven notching type saw blade supported on said saw frame and movable therewith along a path of cutting above and across the worktable surface, an auxiliary dental block molding indexing mechanism, comprising: a. guide means fixed to the saw worktable surface and adapted to provide a fixed guide for sliding movement of an elongated dental block molding work piece in a fixed path perpendicular to the saw blade cutting path whereby said saw blade when moved in its path across the path of said work piece may notch the same; b. an elongated indexing arm having a flexibly mounted tip portion, said indexing arm being slidably mounted at one end at a position laterally removed from the saw blade path and being adapted to move back and forth for a predetermined distance adapting said arm tip portion to move parallel to the direction of, above and to slide on the work piece; and c. means for actuating said indexing arm wherein said tip portion after a first notch has been cut in said work piece by said saw blade and while said saw blade is withdrawn may engage the leading edge of said first notch and advance said work piece along said guide means said predetermined distance and thereafter following each notching of the work piece may so engage each successive notch until said work piece has been fully notched to produce a dental mold block molding therefrom.
Claim 3
Dependent Claim
75 words
The combination of claim 1 including powered means for actuating the movement of said saw blade in its path, powered means for actuating the movement of said indexing arm in its path and control means supplying and coordinating the energization of said powered means whereby after said first notch has been cut said tip portion may engage the leading edge thereof and subsequent notching and indexing of the work piece may proceed automatically until completed.
Claim 4
Dependent Claim
26 words
The combination of claim 2 wherein said powered means comprise piston-cylinder type actuator means and said control means controls the supply and appropriate fluid energization thereof.
Claim 5
Dependent Claim
36 words
The combination of claim 1 including a pivotally mounted operator arm connected to manually actuate said indexing arm and adapting said indexing arm to be manually actuated in coordination with manual movement of the saw blade.
Claim 6
Dependent Claim
32 words
The combination of claim 2 including a pivotally mounted operator arm connected to manually actuate said indexing arm thereby enabling selective manual and automatic operation of said saw blade and indexing arm.
Claim 7
Dependent Claim
142 words
The combination of claim 3 wherein said powered means includes a first piston-cylinder type actuator removably mounted on the radial saw adjacent the cantilever arm thereof and adapted to move the saw blade support frame back and forth, a second piston-cylinder type actuator mounted on a base plate removably secured to the worktable of the radial saw and adapted to move said indexing arm back and forth, and a variable speed motor driven cam-valve type fluid control mounted on said base plate and adapted to energize and control said first and second said piston-cylinder type actuators, means to control said motor cam speed and means to adjust said predetermined distance whereby said indexing apparatus is readily installable on said radial saw without requiring modification thereof and when in operation is adjustable both in speed of operation and size of notches produced thereby.
Claim 8
Dependent Claim
32 words
The combination of claim 6 including a pivotally mounted operator arm connected to manually actuate said indexing arm thereby enabling selective manual and automatic operation of said saw blade and indexing arm.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |