Patent US3193741A successfully refreshed from Google Patents.
US4435906A
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US
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Perforating jig
Assignee: CARL Manufacturing Co Ltd
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Filing: 1982-01-27
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Granted: 1984-03-13
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Expires: 2002-01-27
Abstract
Abstract A perforating jig assists a punch in perforating cards or sheets for insertion into a loose-leaf notebook or ring binder. The perforating jig comprises a folded plate body or two superimposed plates having in a folded or joined edge thereof a plurality of recesses or notches in which a front perforating end of the punch can be fitted. A card or sheet which it is desired to perforate is inserted between the two plates until an edge of the card or sheet is exposed through the recesses. Then, the perforating end of the punch is inserted into the recesses in turn to perforate the card exposed in the recesses.
Inventors
- 👤 Chuzo Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:59
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/01; B26D7/015; B26B; B26B29/00; B26B29/06; B26F; B26F1/00; B26F1/32; B26F1/36; Y; Y10; Y10S; Y10S33/00; Y10S33/01; Y10T; Y10T83/00; Y10T83/667; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/75
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
A perforating jig comprising two superimposed plates, one edge thereof being openably and closably joined, for sandwiching a sheet therebetween, said plates having in and along the joined edge at least one recess in each plate so formed as to allow insertion and positioning therein of a perforating end of a punch to fully perforate an edge portion of the sheet.
Claim 2
Dependent Claim
61 words
A perforating jig comprising two superimposed plates, one edge thereof being openably and closably joined, for sandwiching a sheet therebetween, said plates having in and along the joined edge at least one recess in each plate so formed as to allow insertion and positioning therein of a perforating end of a punch to fully perforate an edge portion of the sheet.
Claim 3
Dependent Claim
37 words
A perforating jig according to claim 1, said two superimposed plates being made of a single plate body folded on itself into a substantially two-ply plate, said joined edge comprising a fold of said folded plate body.
Claim 4
Dependent Claim
29 words
A perforating jig according to claim 1, said two superimposed plates being separate from each other, including a liner interposed between said separate plates and defining said joined edge.
Claim 5
Dependent Claim
34 words
A perforating jig according to claim 1, said two superimposed plates being so constructed as to be openable and closable, including magnetic plates in corresponding positions on confronting surfaces of said two superimposed plates.
Claim 6
Dependent Claim
42 words
A perforating jig according to claim 1, each of said recesses being elongate along said joined edge so that the perforating end of the punch as received in the recess can be held at a side against one corner of the recess.
References Cited (Backward Citations)
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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) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |