Patent US3748039A successfully refreshed from Google Patents.
US3748039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact copying apparatus
Assignee: Individual
•
Filing: 1971-04-16
•
Granted: 1973-07-24
•
Expires: 1991-04-16
Abstract
Abstract A contact copying apparatus having a rotatable copying cylinder and a feeding member for an original and a copying material, wherein the feeding member surrounds a portion of the periphery of the cylinder. The feeding member has a reversible feed direction, whereby the original can be passed to the copying cylinder from either of two sides. The apparatus also has an additional feeding member for the original which extends from the front to the rear side of the apparatus and cooperates with the reversible feeding member.
Inventors
- 👤 U Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:58
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/10; G03B27/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
In a contact copying apparatus having front and rear sides, a rotatable copying cylinder and a feeding means for an original and a copying material, said means surrounding a portion of the periphery of the cylinder, the improvement which comprises feeding means having a reversible feed direction whereby the original can be passed to the copying cylinder from either the front or the rear side of the apparatus, and automatic feeding means mounted at the rear side of the apparatus for automatically feeding copying materials of different sizes, said automatic feeding means including additional fedding means for the original, the additinal feeding means extending from the front to the rear side of the apparatus where it contacts the feeding means for the original and the copying material.
Claim 2
Dependent Claim
127 words
In a contact copying apparatus having front and rear sides, a rotatable copying cylinder and a feeding means for an original and a copying material, said means surrounding a portion of the periphery of the cylinder, the improvement which comprises feeding means having a reversible feed direction whereby the original can be passed to the copying cylinder from either the front or the rear side of the apparatus, and automatic feeding means mounted at the rear side of the apparatus for automatically feeding copying materials of different sizes, said automatic feeding means including additional fedding means for the original, the additinal feeding means extending from the front to the rear side of the apparatus where it contacts the feeding means for the original and the copying material.
Claim 3
Dependent Claim
16 words
An apparatus according to claim 1 in which the reversible feeding means comprises a conveyor belt.
Claim 4
Dependent Claim
17 words
An apparatus according to claim 2 in which the conveyor belt is a plurality of parallel belts.
Claim 5
Dependent Claim
34 words
An apparatus according to claim 1 in which the additional and reversible feeding means each comprises a perforated belt and the apparatus includes means for exhausting air from a space surrounded by said belts.
Claim 6
Dependent Claim
53 words
An apparatus according to claim 1 in which the additional reversible feeding means contacts the feeding means for the original and the copying material additionally at a point between the copying cylinder and the front of the apparatus, and including means for separating the original and the copying material behind both contact points.
Claim 7
Dependent Claim
27 words
An apparatus according to claim 5 in which the additional feeding means is a perforated conveyor belt system includng means for exhausting air from the surrounding space.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 1 including means adjacent to the automatic feeding means for cutting copying material drawn from a one supply roll.
Claim 9
Dependent Claim
18 words
An apparatus according to claim 1 in which the copying cylinder has a diameter less than 10 cm.
Claim 10
Dependent Claim
18 words
An apparatus according to claim 1 in which part of the apparatus above the copying cylinder is pivotal.
Claim 11
Dependent Claim
18 words
An apparatus according to claim 1 including mans for blowing air onto the exterior of the copying cylinder.
References Cited (Backward Citations)
CH377648A
Cited
GB943401A
Cited
DE1184214B
Cited
US3211451A
Cited
US3257925A
Cited
US3273883A
Cited
US3397630A
Cited
US3416863A
Cited
US3547538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |