Patent US3777598A successfully refreshed from Google Patents.
US3777598A
Expired / Lapsed
US
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Method and apparatus for cutting panels
Assignee: HALTOM CITY STATE BANKS
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Filing: 1970-09-10
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Granted: 1973-12-11
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Expires: 1990-09-10
Abstract
Abstract The method and apparatus for efficiently cutting accurately sized panels in an unlimited combination of sizes and shapes from larger sheets. The sheets are automatically counted and stacked on a gauge table, the stack is clamped by jaws which establish in reference line relative to a cutting station, and the stack is advanced along the table for accurately dimensioned rip cuts. One or more of these cut stacks are then moved on a rip run-out unit to a cut-off infeed and gauge table where they are automatically aligned, clamped to establish a second reference line, and accurately advanced to a cut-off station where cross-cut sawing produces finished panels. The stacks are moved and gauged by either digital or analog hydraulic servo motors which accurately position the reference lines relative to the saw stations by controlled deceleration of the load to stop the stacks. At each saw station holddowns prevent sheet displacement as the saw traverses. Each saw automatically senses cutting load and returns to its initial position immediately upon finishing a cut. Linear saw speed is controlled as a function of saw load. Means are provided to automatically remove trim and scrap.
Inventors
- 👤 J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:38
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/02; B27B5/06; B27B5/061; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0476
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
124 words
A method of feeding and cutting panel board stacks of various widths including the steps of positioning a plurality of panel boards of a certain width in a stack in a stacking station, forming a plurality of laterally spaced gripping stations in the stacking station, gripping the rear marginal edge of the panels in the stack at the gripping stations that are opposed to the rear marginal edge of the stack, deactivating the gripping station beyond the certain width of the particular panel in the stack, indexing the stack along a first axis to a cutting station in predetermined steps, and cutting the stack at the cutting station after each step along a path lateral of the axis to separate the stack into sections.
Claim 2
Independent Claim
124 words
A method of feeding and cutting panel board stacks of various widths including the steps of positioning a plurality of panel boards of a certain width in a stack in a stacking station, forming a plurality of laterally spaced gripping stations in the stacking station, gripping the rear marginal edge of the panels in the stack at the gripping stations that are opposed to the rear marginal edge of the stack, deactivating the gripping station beyond the certain width of the particular panel in the stack, indexing the stack along a first axis to a cutting station in predetermined steps, and cutting the stack at the cutting station after each step along a path lateral of the axis to separate the stack into sections.
Claim 3
Dependent Claim
58 words
The method of claim 1 further characterized by and including the step of preliminarily cutting the board stack in stack strips and wherein the step of gripping the rear marginal edge of the panels includes gripping the narrow end of the stacked strips in side-by-side relation so that they are fed to the cutting station in side-by-side relation.
Claim 4
Independent Claim
98 words
A method of controlling the cutter blade operation in a panel-cutting machine for producing panels of improved quality, including the steps of holding a plurality of panels in a stack along a cutting path, turning a cutting blade and moving the cutting blade through the material in the stack along the path, sensing the load on the cutting blade caused by cutting of the material in the stack, and returning the cutting blade to its initial position in response to a reduction in the load on the cutting blade when the cut through a particular stack is finished.
Claim 5
Independent Claim
98 words
A method of controlling the cutter blade operation in a panel-cutting machine for producing panels of improved quality, including the steps of holding a plurality of panels in a stack along a cutting path, turning a cutting blade and moving the cutting blade through the material in the stack along the path, sensing the load on the cutting blade caused by cutting of the material in the stack, and returning the cutting blade to its initial position in response to a reduction in the load on the cutting blade when the cut through a particular stack is finished.
Claim 6
Dependent Claim
55 words
The method of claim 3 further characterized by and including the step of moving the cutting blade out of cutting relation with the stack in response to a reduction in the load on the cutting blade when the cut in a particular stack is finished prior to returning the cutting blade to its initial position.
Claim 7
Dependent Claim
43 words
The method of claim 3 further including the steps of: displacing the cutter away from the cutting path below the stack upon completing a cut; and, returning the displaced cutter to its initial position while simultaneously indexing the stack for subsequent cutting operations.
Claim 8
Independent Claim
114 words
The method of rapidly cutting one or more sheets of material sequentially along spaced positions comprising the steps of: moving the sheets along a first axis; stopping the sheets at a first position adjacent a cutting means; traversing the cutting means laterally of the first axis to and from an initial position for cutting the sheets along the first position; sensing the cutting action of the sheets by the cutting means; stopping traversing of the cutting means responsive to termination of cutting along the first position; moving the cutting means out of cutting relationship with the sheets; and, indexing the sheets along the first axis while returning the cutting means to its initial position.
Claim 9
Independent Claim
114 words
The method of rapidly cutting one or more sheets of material sequentially along spaced positions comprising the steps of: moving the sheets along a first axis; stopping the sheets at a first position adjacent a cutting means; traversing the cutting means laterally of the first axis to and from an initial position for cutting the sheets along the first position; sensing the cutting action of the sheets by the cutting means; stopping traversing of the cutting means responsive to termination of cutting along the first position; moving the cutting means out of cutting relationship with the sheets; and, indexing the sheets along the first axis while returning the cutting means to its initial position.
Claim 10
Independent Claim
104 words
The method of accurately cutting sheet material into panels of predetermined dimensions comprising the steps of: clamping a plurality of sheets; establishing a reference line along a first axis fixed relative to the sheets; moving the clamped sheets along a second axis transversely of the first axis; stopping the stack when the reference line reaches a predetermined location from a cutting position; holding the sheets against displacement on either side of a path transverse of the second axis at the cutting position; cutting the sheets along the path; releasing the sheets from the holding action; and, removing the cut sheets from the cutting position.
Claim 11
Independent Claim
104 words
The method of accurately cutting sheet material into panels of predetermined dimensions comprising the steps of: clamping a plurality of sheets; establishing a reference line along a first axis fixed relative to the sheets; moving the clamped sheets along a second axis transversely of the first axis; stopping the stack when the reference line reaches a predetermined location from a cutting position; holding the sheets against displacement on either side of a path transverse of the second axis at the cutting position; cutting the sheets along the path; releasing the sheets from the holding action; and, removing the cut sheets from the cutting position.
Claim 12
Independent Claim
118 words
The method of forming accurately dimensioned panels from a plurality of sheets of material comprising the steps of: gripping the sheets together along a common edge; establishing a reference line adjacent said edge; mechanically driving the sheets along a path transeversely of the reference line towards a cutting position; and driving the sheets to a stop with the reference line at a predetermined distance from the cutting position by applying a driving force to decrease velocity of the sheets to a relatively low, final velocity sufficient to enable the sheets to come to a substantially instantaneous stop upon removal of the force, and removing the driving force when the reference line reaches said distance from the cutting station.
Claim 13
Independent Claim
118 words
The method of forming accurately dimensioned panels from a plurality of sheets of material comprising the steps of: gripping the sheets together along a common edge; establishing a reference line adjacent said edge; mechanically driving the sheets along a path transeversely of the reference line towards a cutting position; and driving the sheets to a stop with the reference line at a predetermined distance from the cutting position by applying a driving force to decrease velocity of the sheets to a relatively low, final velocity sufficient to enable the sheets to come to a substantially instantaneous stop upon removal of the force, and removing the driving force when the reference line reaches said distance from the cutting station.
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |