US3589222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cutting material
Assignee: Milacron Inc
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Filing: 1970-06-12
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Granted: 1971-06-29
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Expires: 1990-06-12
Abstract
Abstract A material cutting machine has a reciprocating cutting blade mounted for cutting material, which is movable both transversely and longitudinally relative to the cutting blade. Means, which does not reciprocate with the cutting blade but moves with the cutting blade when it is lifted upwardly from the material or moved downwardly into the material, provides a guide for the blade during cutting. The cutting blade has its lower end sharpened or the lower end of the guide means sharpened or both are sharpened so that the material is pierced to permit entry of the cutting blade and the guide means into the material. The lower ends of both the guide means and the cutting blade are supported by support means beneath the material. The support means is rotated simultaneously with the cutting blade so that the support means is maintained in the desired alignment with the cutting blade when the heading of the cutting blade is changed.
Inventors
- 👤 George W Sederberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/3806; B26F1/3813; B26F1/382; B26D; B26D1/00; B26D3/00; B26D3/12; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/938; Y10T; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0572; Y10T83/647; Y10T83/6582; Y10T83/6584; Y10T83/6592; Y10T83/6593; Y10T83/6595; Y10T83/869; Y10T83/8736; Y10T83/8748
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
194 words
A method for forming a pattern in material with a reciprocating cutting blade having cutting surfaces on both its leading edge and an edge connecting the ends of its leading and trailing edges remote from its reciprocating means in which relative longitudinal and transverse movement between the material and the cutting blade may occur, said method comprising: positioning the material in a plane substantially perpendicular to the reciprocating plane of the cutting blade; disposing the cutting blade out of cutting engagement with the material but at the start of the pattern; inserting the cutting blade into the material at the starting point of the pattern by piercing the material and passing the cutting blade completely through the material; supporting the cutting blade throughout the portion in cutting engagement with the material and a portion extending beyond the side of the material opposite to that in which the cutting blade is inserted by piercing the material when the cutting blade is in cutting engagement with the material; and removing the cutting blade from cutting engagement when cutting of a particular portion of the pattern that is disconnected from the remainder of the pattern is completed.
Claim 2
Independent Claim
194 words
A method for forming a pattern in material with a reciprocating cutting blade having cutting surfaces on both its leading edge and an edge connecting the ends of its leading and trailing edges remote from its reciprocating means in which relative longitudinal and transverse movement between the material and the cutting blade may occur, said method comprising: positioning the material in a plane substantially perpendicular to the reciprocating plane of the cutting blade; disposing the cutting blade out of cutting engagement with the material but at the start of the pattern; inserting the cutting blade into the material at the starting point of the pattern by piercing the material and passing the cutting blade completely through the material; supporting the cutting blade throughout the portion in cutting engagement with the material and a portion extending beyond the side of the material opposite to that in which the cutting blade is inserted by piercing the material when the cutting blade is in cutting engagement with the material; and removing the cutting blade from cutting engagement when cutting of a particular portion of the pattern that is disconnected from the remainder of the pattern is completed.
Claim 3
Dependent Claim
100 words
The method according to claim 1 including: removing the cutting blade from cutting engagement with the material being cut when the pattern has a sharp angle; rotating the cutting blade to position its leading edge at the desired angle of the new cut relative to the previous cut in the material; moving the cutting blade relative to the cut in the material to dispose the cutting blade so that the cutting surface of its connecting edge will form a continuation of the previous cut in the material; and inserting the cutting blade into the material again by piercing the material.
Claim 4
Dependent Claim
30 words
The method according to claim 2 in which the rotation of the cutting blade and the movement of the cutting blade relative to the cut in the material occur simultaneously.
Claim 5
Dependent Claim
39 words
The method according to claim 2 in which the cutting blade is rotatable to any angle throuGh 360* to position its cutting surface at the desired angle of the new cut relative to the previous cut in the material.
Claim 6
Dependent Claim
42 words
The method according to claim 2 including rotating the cutting blade from the position of its previous cut to the position of its new cut directly from the previous cut so that the minimum amount of rotation of the cutting blade occurs.
Claim 7
Dependent Claim
12 words
The method according to claim 2 including continuously reciprocating the cutting blade.
Claim 8
Independent Claim
236 words
A method for forming a pattern in material with a reciprocating cutting blade having cutting surfaces on both its leading edge and an edge connecting the ends of its leading and trailing edges remote from its reciprocating means in which relative longitudinal and transverse movement between the material and the cutting blade may occur, aid method comprising: positioning the material in a plane substantially perpendicular to the reciprocating plane of the cutting blade; disposing the cutting blade out of cutting engagement with the material but at the start of the pattern; inserting the cutting blade into the material at the starting point of the pattern by piercing the material; removing the cutting blade from cutting engagement when cutting of a particular portion of the pattern that is disconnected from the remainder of the pattern is completed; removing the cutting blade from cutting engagement with the material being cut when the pattern has a sharp angle; rotating the cutting blade to position its leading edge at the desired angle of the new cut relative to the previous cut in the material when the pattern has the sharp angle; moving the cutting blade relative to the cut in the material to dispose the cutting blade so that the cutting surface of its connecting edge will form a continuation of the previous cut in the material; and inserting the cutting blade into the material again by piercing the material.
Claim 9
Independent Claim
236 words
A method for forming a pattern in material with a reciprocating cutting blade having cutting surfaces on both its leading edge and an edge connecting the ends of its leading and trailing edges remote from its reciprocating means in which relative longitudinal and transverse movement between the material and the cutting blade may occur, aid method comprising: positioning the material in a plane substantially perpendicular to the reciprocating plane of the cutting blade; disposing the cutting blade out of cutting engagement with the material but at the start of the pattern; inserting the cutting blade into the material at the starting point of the pattern by piercing the material; removing the cutting blade from cutting engagement when cutting of a particular portion of the pattern that is disconnected from the remainder of the pattern is completed; removing the cutting blade from cutting engagement with the material being cut when the pattern has a sharp angle; rotating the cutting blade to position its leading edge at the desired angle of the new cut relative to the previous cut in the material when the pattern has the sharp angle; moving the cutting blade relative to the cut in the material to dispose the cutting blade so that the cutting surface of its connecting edge will form a continuation of the previous cut in the material; and inserting the cutting blade into the material again by piercing the material.
Claim 10
Dependent Claim
52 words
The method according to claim 7 including supporting the cutting blade on the side of the material opposite to the side of the material into which the cutting blade is moved into and out of engagement with the material at least when the cutting blade is in cutting engagement with the material.
Claim 11
Independent Claim
184 words
A method for cutting a pattern in a material with a cutting blade having a cutting surface movable into and out of cutting engagement with the material in which relative longitudinal and transverse movement between the material and the cutting blade may occur, said method comprising: removing the cutting blade from cutting engagement with the material whenever the pattern requires an angular relation between the previous cut in the material and a new cut in the material that cannot be obtained by rotating the cutting blade when the cutting blade is in cutting engagement with the material; rotating the cutting blade to position its cutting surface at the desired angle of the new cut relative to the previous cut of the material; simultaneously moving the cutting blade relative to the previous cut in the material during rotation of the cutting blade to dispose the cutting blade so that its cutting surface will form a continuation of the cut in the material when the cutting blade is returned into cutting engagement with the material; and returning the cutting blade into cutting engagement with the material.
Claim 12
Independent Claim
184 words
A method for cutting a pattern in a material with a cutting blade having a cutting surface movable into and out of cutting engagement with the material in which relative longitudinal and transverse movement between the material and the cutting blade may occur, said method comprising: removing the cutting blade from cutting engagement with the material whenever the pattern requires an angular relation between the previous cut in the material and a new cut in the material that cannot be obtained by rotating the cutting blade when the cutting blade is in cutting engagement with the material; rotating the cutting blade to position its cutting surface at the desired angle of the new cut relative to the previous cut of the material; simultaneously moving the cutting blade relative to the previous cut in the material during rotation of the cutting blade to dispose the cutting blade so that its cutting surface will form a continuation of the cut in the material when the cutting blade is returned into cutting engagement with the material; and returning the cutting blade into cutting engagement with the material.
Claim 13
Dependent Claim
39 words
The method according to claim 9 in which the cutting blade is rotatable to any angle through 360* to position its cutting surface at the desired angle of the new cut relative to the previous cut in the material.
Claim 14
Dependent Claim
42 words
The method according to claim 9 including rotating the cutting blade from the position of its previous cut to the position of its new cut directly from the previous cut so that the minimum amount of rotation of the cutting blade occurs.
Claim 15
Dependent Claim
52 words
The method according to claim 9 including supporting the cutting blade on the side of the material opposite to the side of the material into which the cuttinG blade is moved into and out of engagement with the material at least when the cutting blade is in cutting engagement with the material.
Claim 16
Dependent Claim
12 words
The method according to claim 9 including continuously reciprocating the cutting blade.
Claim 17
Dependent Claim
66 words
The method according to claim 9 including supporting the cutting blade at least throughout the portion of the cutting blade disposed in cutting engagement with the material when the cutting blade is in cutting engagement with the material and a portion of the cutting blade extending beyond the material on the side opposite to that into which the cutting blade is inserted by piercing the material.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |