Patent US4909491A successfully refreshed from Google Patents.
US4909491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saw platform and workbench
Assignee: Individual
•
Filing: 1989-02-08
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Granted: 1990-03-20
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Expires: 2009-02-08
Abstract
Abstract A sawing platform and workbench includes a stand portion and a platform supported by the stand portion. A pair of adjusting plates fixed to opposite ends of the platform adjust the height and angle of the platform. Each adjusting plate has first and second spaced, vertical slots formed therein to permit vertical movement of the platform. The second slot of each of the adjusting plates includes an arcuate slot formed in the adjusting plate continuous with the second slot to permit angular movement of the platform. An adjusting rod includes a first end portion contained within each of the first and second slots to limit vertical movement of the platform over a distance substantially equal to the length of the vertical slots and to limit angular movement of the platform over a range commensurate with the length of the arcuate slots. A second end portion of the adjusting rod is fixed to the stand portion. Locking means lock the platform at a desirable height and angle.
Inventors
- 👤 Wen H. Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:25
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/10; B23; B23D; B23D47/00; B23D47/02; B23D47/025; B25H1/14; B25H1/16; B25H1/18; Y; Y10; Y10S; Y10S269/00; Y10S269/901
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
A sawing platform and workbench comprising: a stand portion; a platform supported by said stand portion; and, means to adjust the height and angle of the platform including plate means having first and second spaced, vertical slots formed therein to permit vertical movement of said platform, said second slot of each of said adjusting plates including an arcuate slot formed in said adjusting plate continuous with said second slot to permit angular movement of said platform; and an adjusting rod connected to said stand portion projecting through each of said first and second slots to limit vertical and angular movement of said platform.
Claim 2
Dependent Claim
103 words
A sawing platform and workbench comprising: a stand portion; a platform supported by said stand portion; and, means to adjust the height and angle of the platform including plate means having first and second spaced, vertical slots formed therein to permit vertical movement of said platform, said second slot of each of said adjusting plates including an arcuate slot formed in said adjusting plate continuous with said second slot to permit angular movement of said platform; and an adjusting rod connected to said stand portion projecting through each of said first and second slots to limit vertical and angular movement of said platform.
Claim 3
Dependent Claim
25 words
The sawing platform and workbench of claim 1 wherein said plate means includes a pair of adjusting plates fixed to opposite ends of said platform.
Claim 4
Dependent Claim
76 words
The sawing platform and workbench of claim 1 wherein said adjusting rod includes a first end portion projecting through each of said first and second slots and a second end portion fixed to said stand portion, said first end portion limiting vertical movement of said platform over a distance substantially equal to the length of said vertical slots, and limiting angular movement of said platform over a range commensurate with the length of said arcuate slots.
Claim 5
Dependent Claim
22 words
The sawing platform and workbench of claim 3 further comprising locking means to lock said platform at a desirable height and angle.
Claim 6
Dependent Claim
52 words
The sawing platform and workbench of claim 4 wherein said locking means includes locking slots formed in said adjusting plates continuous with said vertical slots to engage said first end portions of said adjusting rods to block vertical movement of said platform after said platform has been set at a desired height.
Claim 7
Dependent Claim
39 words
The sawing platform and workbench of claim 3 further comprising means to move said first end portions of said adjusting rods projecting through said second slots to project through said arcuate slots to adjust the angle of said platform.
Claim 8
Dependent Claim
30 words
The sawing platform and workbench of claim 4 wherein said locking means includes means to prevent movement of said platform after said platform has been set at a desirable angle.
Claim 9
Dependent Claim
39 words
The sawing platform and workbench of claim 1 wherein said platform includes a first portion and a second portion movable with respect to said first portion and, means to move said second portion with respect to said first portion.
Claim 10
Dependent Claim
39 words
The sawing platform and workbench of claim 8 wherein said platform includes a fixing plate disposed between said first and second portions of said platform to adapt the sawing platform and workbench for use in connection with machine tools.
Claim 11
Dependent Claim
23 words
The sawing platform and workbench of claim 9 wherein said fixing plate includes a slot formed therein adapted to receive a saw blade.
Claim 12
Dependent Claim
19 words
The sawing platform and workbench of claim 1 wherein said platform includes means to attach accessories to said platform.
Claim 13
Dependent Claim
26 words
The sawing platform and workbench of claim 11 wherein said means to attach includes a receptacle formed in said platform to receive and retain the accessories.
Claim 14
Dependent Claim
20 words
The sawing platform and workbench of claim 1 wherein said stand portion is constructed in accordance with an A-frame configuration.
Claim 15
Dependent Claim
63 words
The sawing platform and workbench of claim 13 wherein said A-frame includes two front stands fixed to the opposite ends of said platform to support one side of said platform, two rear stands fixed to the opposite ends of said platform to support the opposite side of said platform, and a foldable rod joining each front stand with its respective opposite rear stand.
Claim 16
Dependent Claim
30 words
The sawing platform and workbench of claim 14 wherein the sawing platform and workbench is foldable to a more compact state when said foldable rods are caused to be folded.
References Cited (Backward Citations)
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |