US3760506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card gauge
Assignee: Fujitsu Services Ltd
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Filing: 1971-11-19
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Granted: 1973-09-25
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Expires: 1991-11-19
Abstract
Abstract A punched card gauge has at each possible hole position marks defining at least two boundaries one within the other. Sight of the inner boundary but none of the outer one is required on making a hole sight of the whole of the inner boundary indicates a hole is satisfactory for sensing.
Inventors
- 👤 R Tudberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:56
CPC Classifications
G; G06; G06K; G06K5/00; G06K5/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
A card gauge for providing a first check of punched hole positions in a punch card immediately after the holes have been punched and, after an interval of time, a second check of the hole positions immediately prior to sensing the holes, including a member having a flat surface; locating projections engageable with adjacent edges of a card to be checked to locate a predetermined corner of the card to bring said card into a predetermined checking position with respect to the surface; a plurality of indicia positioned on the surface respectively to correspond to those positions on the card in which holes may be punched, the indicia at each position including first, second and third rectangular boundaries, the second boundary lying within and spaced from the first boundary and the third boundary lying between the first and second boundaries and respectively spaced therefrom such that when said first check is performed on an acceptable card there is visible through each punched hole the entire second boundary, at least a part of the third boundary and none of the first boundary, and when said second check is performed on an acceptable card there is visible through each hole the second boundary and none of the third and first boundaries.
Claim 2
Dependent Claim
209 words
A card gauge for providing a first check of punched hole positions in a punch card immediately after the holes have been punched and, after an interval of time, a second check of the hole positions immediately prior to sensing the holes, including a member having a flat surface; locating projections engageable with adjacent edges of a card to be checked to locate a predetermined corner of the card to bring said card into a predetermined checking position with respect to the surface; a plurality of indicia positioned on the surface respectively to correspond to those positions on the card in which holes may be punched, the indicia at each position including first, second and third rectangular boundaries, the second boundary lying within and spaced from the first boundary and the third boundary lying between the first and second boundaries and respectively spaced therefrom such that when said first check is performed on an acceptable card there is visible through each punched hole the entire second boundary, at least a part of the third boundary and none of the first boundary, and when said second check is performed on an acceptable card there is visible through each hole the second boundary and none of the third and first boundaries.
Claim 3
Dependent Claim
22 words
A gauge as claimed in claim 1 wherein said flat surface is of metal and said indicia are photo-etched into said surface.
Claim 4
Dependent Claim
55 words
A gauge as claimed in claim 1 wherein said surface includes indicia representing linear strips of predetermined width positioned relative to said locating projections to correspond with further edges, one opposite each of said adjacent edges of a located card, said further edges of an acceptable located card lying within the width of said strips.
Claim 5
Dependent Claim
45 words
A gauge as claimed in claim 1 wherein said surface includes further indicia aligned in a row and spaced apart in adjacent columns respectively, the spacing between the indicia of the row corresponding to the minimum distance between adjacent punched holes in an acceptable card.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |