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US4381605A Expired / Lapsed US ⏱️ 0.0 years remaining

Shearing machine having rotatable cutter wheels

Assignee: Individual
•
Filing: 1981-03-12
•
Granted: 1983-05-03
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Expires: 2001-03-12
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Abstract

Abstract A shearing machine for shearing sheet material, comprises a body (1) and to co-operating shearing wheels (5, 6) between whose shearing edges (41, 42) the sheet is cut. The stand (1) comprises a first part (2) and a second part (3), which are laterally offset from one another, and an intermediate horizontal connecting part (4). The shearing wheels (5, 6) are axially offset from one another and have their shearing edges (41, 42) in tangential contact with one another. The intermediate horizontal stand part (4) forms a wedge-shaped deflector and has its leading edge (27) disposed in line with and at a distance from the nip (28) between the shearing wheels (5, 6). The shearing machine is free from structural elements on either side of the shearing wheels (5, 6), thus enabling sheet of any width to be cut.

Inventors

  • 👤 Folke Holm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 09:32
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2077; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6598; Y10T83/768; Y10T83/7809; Y10T83/783; Y10T83/869; Y10T83/8763

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 168 words
A shearing machine for cutting sheet metal of varying thickness comprising a supporting body having an upper and lower portion, at least one pair of rollers freely journalled on a shaft fixed to the lower portion of said body and a handle means for manually guiding said body about on said rollers, a freely rotatable cutter wheel having a planar edge mounted about a horizontal axis in the lower portion of said body, a driven cutting wheel having a serrated peripheral edge mounted in the upper portion of said body for rotation about an axis parallel to the axis of said freely rotatable cutting wheel, the peripheral edges of said cutting wheels being bevelled, said wheels being arranged offset axially with respect to each other so that the large side faces formed by said bevels are disposed in the same vertical plane and in tangential contact with each other to co-rotate, said body having means for removably mounting an electric hand motor for driving said driven cutting wheel.
Claim 2
Dependent Claim 168 words
A shearing machine for cutting sheet metal of varying thickness comprising a supporting body having an upper and lower portion, at least one pair of rollers freely journalled on a shaft fixed to the lower portion of said body and a handle means for manually guiding said body about on said rollers, a freely rotatable cutter wheel having a planar edge mounted about a horizontal axis in the lower portion of said body, a driven cutting wheel having a serrated peripheral edge mounted in the upper portion of said body for rotation about an axis parallel to the axis of said freely rotatable cutting wheel, the peripheral edges of said cutting wheels being bevelled, said wheels being arranged offset axially with respect to each other so that the large side faces formed by said bevels are disposed in the same vertical plane and in tangential contact with each other to co-rotate, said body having means for removably mounting an electric hand motor for driving said driven cutting wheel.
Claim 3
Dependent Claim 17 words
The shearing machine according to claim 1, wherein the bevel of said cutting wheels is about 5°.

References Cited (Backward Citations)

US3126780A Cited
DE148409C Cited
FR437896A Cited
US1098671A Cited
US1181354A Cited
US1210148A Cited
GB270732A Cited
US2946251A Cited
US3906629A Cited
US4283853A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-05-02 1986-11-01 1987-05-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-05-02 1990-11-01 1991-05-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-05-02 1994-11-01 1995-05-03 $7700.00 Window Closed / Lapsed

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