US3837461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print station for a matrix printer
Assignee: Singer Co
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Filing: 1973-03-13
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Granted: 1974-09-24
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Expires: 1993-03-13
Abstract
Abstract A platen assembly for feeding and holding single or multi-layer record media for printing thereon which accommodates the rather limited thrust of the wires of a matrix type printer, said assembly comprising a platen and one of a pair of feed rollers pivotally mounted so as to yieldingly engage the record media during the printing operation. The platen yieldingly engages and holds the record media against guides which determine the gap between the matrix head for proper operation of the wires and the roller yieldingly engages the record media to hold the media against a power feed roller during the printing operation. For line-by-line printing, the platen is temporarily disengaged from the record media while the pressure roller and power feed roller move the record media the required distance before the platen again engages the media. This platen assembly is particularly useful in point-of-sale data terminals where the record media is usually multiple copy forms of varying numbers for bills of sale, invoices, contracts of sale, and the like.
Inventors
- 👤 H Waibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:27
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
121 words
An assembly for holding one or more layers of record media for printing of characters thereon by a print head comprising: platen means for urging said record media against guide means for spacing said record media relative to the print head for relative transverse movement therebetween; means for feeding said record media for line-by-line printing of rows and columns of said characters thereon, said feeding means being in continuous engagement with the record media; an assembly for holding said platen means and said feeding means; means for temporarily overcoming said platen means for urging said record media against guide means, independently of said feeding means, for a time sufficient to permit the record media to be moved by said feeding means.
Claim 2
Dependent Claim
121 words
An assembly for holding one or more layers of record media for printing of characters thereon by a print head comprising: platen means for urging said record media against guide means for spacing said record media relative to the print head for relative transverse movement therebetween; means for feeding said record media for line-by-line printing of rows and columns of said characters thereon, said feeding means being in continuous engagement with the record media; an assembly for holding said platen means and said feeding means; means for temporarily overcoming said platen means for urging said record media against guide means, independently of said feeding means, for a time sufficient to permit the record media to be moved by said feeding means.
Claim 3
Dependent Claim
44 words
The assembly as claimed in claim 1 wherein said means for urging said record media against guide means includes means for applying a force so that said record media yieldingly engages said guide means thereby automatically accommodating one or more layers of record media.
Claim 4
Dependent Claim
42 words
The assembly as claimed in claim 2 wherein said means for feeding said record media also includes means for applying a force so that said record media yieldingly engages said guide means thereby automatically accommodating one or more layers of record media.
Claim 5
Dependent Claim
42 words
The assembly as claimed in claim 3 wherein means are provided for temporarily overcoming said force on the means for urging the record media against said guide means for a time sufficient to permit said feeding means to move said record media.
Claim 6
Dependent Claim
118 words
An assembly for holding record media for printing thereon by a print head comprising: guide means for spacing said record media relative to the print head so that said print head may traverse said record media and print rows of characters thereon; platen means for urging said record media against said guide means; means for feeding said record media relative to said print head for line-by-line printing of rows and columns of said characters an assembly for holding said platen means and said feeding means; means for temporarily moving said platen means away from said record media, independently of said feeding means, for a time sufficient to permit the record media to be moved by said feeding means.
Claim 7
Dependent Claim
118 words
An assembly for holding record media for printing thereon by a print head comprising: guide means for spacing said record media relative to the print head so that said print head may traverse said record media and print rows of characters thereon; platen means for urging said record media against said guide means; means for feeding said record media relative to said print head for line-by-line printing of rows and columns of said characters an assembly for holding said platen means and said feeding means; means for temporarily moving said platen means away from said record media, independently of said feeding means, for a time sufficient to permit the record media to be moved by said feeding means.
Claim 8
Dependent Claim
23 words
The assembly as claimed in claim 5 wherein said platen means includes means for automatically accommodating one or more layers of record media.
Claim 9
Dependent Claim
23 words
The assembly as claimed in claim 6 wherein said means for automatically accommodating one or more layers of record mEdia is resilient means.
Claim 10
Dependent Claim
28 words
The assembly as claimed in claim 7 wherein said means for feeding said record media also includes means for automatically accommodating one or more layers of record media.
Claim 11
Dependent Claim
23 words
The assembly as claimed in claim 8 wherein said means for automatically accommodating one or more layers of record media comprises resilient means.
Claim 12
Dependent Claim
58 words
The assembly as claimed in claim 5 wherein said platen means and means for feeding the record media are both operatively connected for concurrent holding of said record media in two places when said print head traverses said record media, and both said last-mentioned means also include means for automatically accommodating one or more layers of record media.
Claim 13
Dependent Claim
27 words
The assembly as claimed in claim 6 wherein said means for feeding the record media comprises a pressure roller forming one of a pair of feed rollers.
Claim 14
Dependent Claim
194 words
An assembly for holding one or more layers of record media for the printing of characters thereon by a matrix print head comprising: guide means for spacing said record media relative to the matrix print head for relative transverse movement therebetween and for proper operation of the print head wires; a movable platen; a power feed roller and a movable pressure roller acting as a pair for feeding the record media past the print head; an assembly for holding said platen and said pressure roller and operative to move said platen toward said guide means and said pressure roller toward said power feed roller and including means for yieldably urging said record media into engagement with said guide means and said power feed roller by applying a spring force to said platen and said pressure roller; and means for overcoming said spring force applied to said platen while permitting said spring force to be applied to said pressure roller to permit said rollers to feed said record media the required distance before allowing said spring force to again be applied to said platen for line-by-line printing of rows and columns on said record media.
Claim 15
Dependent Claim
194 words
An assembly for holding one or more layers of record media for the printing of characters thereon by a matrix print head comprising: guide means for spacing said record media relative to the matrix print head for relative transverse movement therebetween and for proper operation of the print head wires; a movable platen; a power feed roller and a movable pressure roller acting as a pair for feeding the record media past the print head; an assembly for holding said platen and said pressure roller and operative to move said platen toward said guide means and said pressure roller toward said power feed roller and including means for yieldably urging said record media into engagement with said guide means and said power feed roller by applying a spring force to said platen and said pressure roller; and means for overcoming said spring force applied to said platen while permitting said spring force to be applied to said pressure roller to permit said rollers to feed said record media the required distance before allowing said spring force to again be applied to said platen for line-by-line printing of rows and columns on said record media.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |