Patent US3633500A successfully refreshed from Google Patents.
US3633500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means mounting type slugs on toothed belt in chain printers
Assignee: DECISION DATA Inc A CORP OF
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Filing: 1969-06-27
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Granted: 1972-01-11
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Expires: 1989-06-27
Abstract
Abstract A chain printer containing a type chain which comprises a belt having a toothed side and which carries channel-shaped printing slugs along the print line. The web of each channel-shaped slug abuts the nontoothed side of the belt and has type characters thereon. The slugs'' flanges project across the edges of the belt and a pair of pins hold each slug at alternate teeth on the belt by extending between the flanges and projecting into holes therein. Each pair of pins abuts the opposite sides of a tooth and the adjacent side of the belt. A driving pulley moves the belt with a set of peripheral notches which mesh with those teeth not abutted by pins; a second set of peripheral notches is provided in the pulley for accommodating the abutting teeth and pins. When traveling around the pulley, the flanges pass over the pulley''s sides and thereby guide the belt and slugs.
Inventors
- 👤 James H Edwards
- 👤 Alan M Swett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
165 words
A type chain assembly comprising: a. a movable flexible belt having first and second sides; b. a plurality of spaced teeth located on the first side of the belt; c. a plurality of printing slugs, each slug having a printing portion with at least one type character thereon abutting the second side of the belt, each slug also having at least one portion cantilevered from the printing portion and projecting across an edge of the belt; d. at least one member securing each slug to the belt, the securing members extending from the cantilevered portions of the slugs, positioned on the first side of the belt and located at some of the teeth; and e. a driving pulley for moving the belt, the pulley having at least two sets of peripheral notches, one set adapted to mesh with some of the teeth, another set adapted to accommodate the securing members and the teeth at which they are located when the belt moves over the pulley.
Claim 2
Dependent Claim
165 words
A type chain assembly comprising: a. a movable flexible belt having first and second sides; b. a plurality of spaced teeth located on the first side of the belt; c. a plurality of printing slugs, each slug having a printing portion with at least one type character thereon abutting the second side of the belt, each slug also having at least one portion cantilevered from the printing portion and projecting across an edge of the belt; d. at least one member securing each slug to the belt, the securing members extending from the cantilevered portions of the slugs, positioned on the first side of the belt and located at some of the teeth; and e. a driving pulley for moving the belt, the pulley having at least two sets of peripheral notches, one set adapted to mesh with some of the teeth, another set adapted to accommodate the securing members and the teeth at which they are located when the belt moves over the pulley.
Claim 3
Dependent Claim
40 words
The type chain assembly as recited in claim 1 wherein a pair of securing members extend from the cantilevered portion of each slug, each pair of members abutting opposite sides of a tooth on the first side of the belt.
Claim 4
Dependent Claim
42 words
The type chain assembly as recited in claim 2 wherein the notcHes in the pulley in the two sets are alternately arranged, alternate teeth on the belt are abutted by the securing members and the teeth on the belt are uniformly spaced.
Claim 5
Dependent Claim
23 words
The type chain assembly as recited in claim 2 wherein each pair of securing members also abuts the first side of the belt.
Claim 6
Dependent Claim
36 words
The type chain assembly as recited in claim 2 wherein each slug has two cantilevered portions which project across opposite edges of the belt and the securing members comprise pins projecting from the slugs'' cantilevered portions.
Claim 7
Dependent Claim
47 words
The type chain assembly as recited in claim 5 wherein each of the cantilevered portions of each slug contains a pair of holes and each securing member is a pin extending between the two cantilevered portions of a slug and projecting into a hole in each portion.
Claim 8
Dependent Claim
38 words
The type chain assembly as recited in claim 2 wherein at least part of the cantilevered portions of the slugs are adapted to pass over the sides of the driving pulley when the belt travels over the pulley.
Claim 9
Dependent Claim
157 words
A type chain assembly comprising: a. a movable belt having first and second sides; b. a plurality of spaced teeth located on the first side of the belt; c. a plurality of printing slugs, each slug having a printing portion with at least one type character therein abutting the second side of the belt, each slug also having at least one portion cantilevered from the printing portion and projecting across an edge of the belt; d. at least two pins securing each slug to the belt, the pins extending from the slug''s cantilevered portion, positioned on the first side of the belt, and abutting opposite sides of a tooth; and e. a driving pulley for moving the belt, the pulley having at least two sets of peripheral notches, one set adapted to mesh with some of the teeth, another set adapted to accommodate the pins and the teeth they abut when the belt moves over the pulley.
Claim 10
Dependent Claim
157 words
A type chain assembly comprising: a. a movable belt having first and second sides; b. a plurality of spaced teeth located on the first side of the belt; c. a plurality of printing slugs, each slug having a printing portion with at least one type character therein abutting the second side of the belt, each slug also having at least one portion cantilevered from the printing portion and projecting across an edge of the belt; d. at least two pins securing each slug to the belt, the pins extending from the slug''s cantilevered portion, positioned on the first side of the belt, and abutting opposite sides of a tooth; and e. a driving pulley for moving the belt, the pulley having at least two sets of peripheral notches, one set adapted to mesh with some of the teeth, another set adapted to accommodate the pins and the teeth they abut when the belt moves over the pulley.
Claim 11
Dependent Claim
22 words
The type chain assembly as recited in claim 8 wherein each pair of pins also abut the first side of the belt.
Claim 12
Dependent Claim
55 words
The type chain assembly as recited in claim 8 wherein each slug has two cantilevered portions which project across opposite edges of the belt, each of the two cantilevered portions contains a pair of holes, and each pin extends between the two cantilevered portions of a slug and projects into a hole in each portion.
References Cited (Backward Citations)
US2267661A
Cited
US2936704A
Cited
US3041965A
Cited
US3041964A
Cited
US3142249A
Cited
US3216348A
Cited
US3402657A
Cited
US3379126A
Cited
US3379125A
Cited
US3416442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |