US4132138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter for a cutting machine
Assignee: Marumiya Shoko Co Ltd
•
Filing: 1977-04-28
•
Granted: 1979-01-02
•
Expires: 1997-04-28
Abstract
Abstract A cutter for a cutting machine wherein a large number of inclined grooves having an angle relative to the edge of the cutter are formed in parallel on the rear side of the cutter, whereby the job of cutting stacked sheets of paper into book blocks of a predetermined size and the job of forming groove portions at the back parts of the book blocks can be simultaneously executed in the production of brochures.
Inventors
- 👤 Eiji Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:02
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/0006; B26D2001/006; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/934; Y10T; Y10T83/00; Y10T83/929; Y10T83/9454
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
In a cutter which is mounted on a cutting machine for producing brochures, the cutter being moved obliquely and downwards, a cutter comprising: a large number of parallel, grooves and lands formed on a rear side of said cutter and at equal intervals in a manner to extend towards an edge of said cutter and to be slant at an angle of substantially 45° relative to said edge, an inclined surface which is formed on a front side of said cutter in a manner to incline towards said edge, and a sharp blade which is formed of said grooves and lands on the rear and said inclined surface on the front and which is formed with teeth and indentations of said blade, and cutter edge ends of said grooves on the rear and said indentations of said blade being formed on a straight line.
Claim 2
Dependent Claim
144 words
In a cutter which is mounted on a cutting machine for producing brochures, the cutter being moved obliquely and downwards, a cutter comprising: a large number of parallel, grooves and lands formed on a rear side of said cutter and at equal intervals in a manner to extend towards an edge of said cutter and to be slant at an angle of substantially 45° relative to said edge, an inclined surface which is formed on a front side of said cutter in a manner to incline towards said edge, and a sharp blade which is formed of said grooves and lands on the rear and said inclined surface on the front and which is formed with teeth and indentations of said blade, and cutter edge ends of said grooves on the rear and said indentations of said blade being formed on a straight line.
Claim 3
Dependent Claim
142 words
A cutter for a cutting machine for producing brochures, the cutter being mounted for oblique linear downward and upward movement, said cutter comprising: (a) an elongated blade having generally parallel planar front and rear surfaces defining a blade thickness therebetween; (b) an inclined portion on said front surface defining a sharpened cutting edge along one longitudinal edge of the blade; (c) a plurality of equally spaced grooves and lands on said rear surface extending in the thickness direction of the blade from the central part of said rear surface to said sharpened cutting edge, said grooves being at an angle of about 45° to said edge; and (d) a plurality of regularly spaced teeth and indentations on said sharpened edge extending in the depth direction thereof, said teeth and indentations being arranged so that a substantially straight line cutting edge is formed.
Claim 4
Dependent Claim
142 words
A cutter for a cutting machine for producing brochures, the cutter being mounted for oblique linear downward and upward movement, said cutter comprising: (a) an elongated blade having generally parallel planar front and rear surfaces defining a blade thickness therebetween; (b) an inclined portion on said front surface defining a sharpened cutting edge along one longitudinal edge of the blade; (c) a plurality of equally spaced grooves and lands on said rear surface extending in the thickness direction of the blade from the central part of said rear surface to said sharpened cutting edge, said grooves being at an angle of about 45° to said edge; and (d) a plurality of regularly spaced teeth and indentations on said sharpened edge extending in the depth direction thereof, said teeth and indentations being arranged so that a substantially straight line cutting edge is formed.
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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |