Patent US4399849A successfully refreshed from Google Patents.
US4399849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quality control process
Assignee: Individual
•
Filing: 1981-07-09
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Granted: 1983-08-23
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Expires: 2001-07-09
Abstract
Abstract The invention provides a quality control process for lumber-cutting operations. It normally includes the following steps: (1) treating, with a normally invisible indicator, a portion of the lumber to be cut; (2) recording the physical properties of the portion of lumber; (3) commingling the treated, recorded portion with the remainder of the lumber; (4) performing cutting operations on the lumber; (5) imposing conditions on the lumber that will render the indicator visible on the treated portion; and (6) comparing the cut pieces of the treated, recorded portion with the precut record to determine the efficiency of the cutting operations.
Inventors
- 👤 Karol L. Nowakowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:24
CPC Classifications
B; B27; B27G; B27G1/00; B27M; B27M1/00; B27M1/08; G; G07; G07C; G07C3/00; G07C3/14; Y; Y10; Y10T; Y10T83/00; Y10T83/162; Y10T83/173; Y10T83/175; Y10T83/505
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
59 words
A quality control process for lumber-cutting operations comprising: treating lumber to be cut with a normally invisible indicator; recording the physical properties of the lumber to be cut; cutting the lumber; rendering the indicator visible on the treated, recorded lumber; and comparing the cut, treated lumber with the recorded physical properties to determine the efficiency of the cutting operations.
Claim 2
Dependent Claim
59 words
A quality control process for lumber-cutting operations comprising: treating lumber to be cut with a normally invisible indicator; recording the physical properties of the lumber to be cut; cutting the lumber; rendering the indicator visible on the treated, recorded lumber; and comparing the cut, treated lumber with the recorded physical properties to determine the efficiency of the cutting operations.
Claim 3
Dependent Claim
82 words
A quality control process for lumber-cutting operations, wherein the process comprises: treating, with a normally invisible indicator, a portion of the lumber to be cut; recording the physical properties of the portion of lumber; commingling the treated, recorded portion with the remainder of the lumber; performing cutting operations on the lumber; rendering the indicator visible on the treated, recorded portion; comparing the cut pieces of the treated, recorded portion with the recorded physical properties to determine the efficiency of the cutting operations.
Claim 4
Dependent Claim
82 words
A quality control process for lumber-cutting operations, wherein the process comprises: treating, with a normally invisible indicator, a portion of the lumber to be cut; recording the physical properties of the portion of lumber; commingling the treated, recorded portion with the remainder of the lumber; performing cutting operations on the lumber; rendering the indicator visible on the treated, recorded portion; comparing the cut pieces of the treated, recorded portion with the recorded physical properties to determine the efficiency of the cutting operations.
Claim 5
Dependent Claim
54 words
The process of claim 1 or 2 wherein said treating step comprises applying a first aqueous solution, the first solution being normally invisible, and wherein said step of rendering the indicator visible comprises applying a second aqueous solution to the treated, recorded lumber, the second solution being one which renders the first solution visible.
Claim 6
Dependent Claim
21 words
The process of claim 3 wherein the first solution is a phthalein solution and the second solution is an alkali solution.
Claim 7
Dependent Claim
23 words
The process of claim 3 wherein the first solution is a lead nitrate solution and the second solution is a potassium iodide solution.
Claim 8
Dependent Claim
40 words
The process of claim 1 or 2 wherein said treating step comprises applying a normally invisible ultraviolet-sensitive substance, and wherein said step of rendering the indicator visible comprises subjecting the lumber to ultraviolet light to render the ultraviolet-sensitive substance visible.
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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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |