Patent US4609295A successfully refreshed from Google Patents.
US4609295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-held printing calculator
Assignee: Seiko Epson Corp
•
Filing: 1983-01-11
•
Granted: 1986-09-02
•
Expires: 2003-01-11
Abstract
Abstract A hand-held printing calculator for printing calculating results on elongated paper strips from a bundle of paper strips disposed within the calculator is provided. The calculator includes a microprinter having a paper feeding assembly including feeding elements disposed before and after the print position and in the same plane as the advancing paper for maintaining the paper flat during printing. In another embodiment of the invention, a detection sensor detects the absence of a paper strip at the print position for generating a signal for feeding the next paper strip so that paper is continuously fed to the print position.
Inventors
- 👤 Tadayoshi Shimodaira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:41
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/02; B41J13/03; B41J1/00; B41J1/22; B41J1/32; B41J1/44; B41J1/46; B41J1/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A hand-held printing calculator for printing calculating results on paper strips stored flat within the calculator comprising: case means for defining an interior space and including paper storage means for storing a plurality of paper strips; calculator and printer circuit means within said interior space for performing calculating operations and generating corresponding print signals for printing the calculating results on a paper strip stored in said calculator; print means in said case means for printing on said paper strips in response to said print signals when one of the paper strips is in a print position adjacent said print means; paper advance means for continuously advancing a paper strip from the paper storage means to the print position, including first paper feeding means disposed before the print position and second paper feeding means disposed after the print position, said second paper feeding means advancing the paper strip at a faster rate than said first paper feeding means and the first and second paper feeding means disposed substantially in the same plane as the plane of the paper strip being advanced at the print position; and biasing means for biasing said paper strip towards said first paper feeding means.
Claim 2
Dependent Claim
198 words
A hand-held printing calculator for printing calculating results on paper strips stored flat within the calculator comprising: case means for defining an interior space and including paper storage means for storing a plurality of paper strips; calculator and printer circuit means within said interior space for performing calculating operations and generating corresponding print signals for printing the calculating results on a paper strip stored in said calculator; print means in said case means for printing on said paper strips in response to said print signals when one of the paper strips is in a print position adjacent said print means; paper advance means for continuously advancing a paper strip from the paper storage means to the print position, including first paper feeding means disposed before the print position and second paper feeding means disposed after the print position, said second paper feeding means advancing the paper strip at a faster rate than said first paper feeding means and the first and second paper feeding means disposed substantially in the same plane as the plane of the paper strip being advanced at the print position; and biasing means for biasing said paper strip towards said first paper feeding means.
Claim 3
Dependent Claim
68 words
The hand-held printing calculator of claim 1, further including detection means for detecting the presence of the paper strip at the print position, the detection means generating a signal upon the absence of paper at the print position, said signal applied to said paper advance means for advancing one of the paper strips stored in the means for storing a plurality of paper strips to said print position.
Claim 4
Dependent Claim
42 words
The hand-held printing calculator of claim 1, wherein said paper storage means is adapted to receive a plurality of paper strips stacked one on top of each other in the form of a bundle for continuous feeding by said paper advance means.
Claim 5
Dependent Claim
65 words
The hand-held printing calculator of claim 1, wherein said print means includes at least one print character ring having characters disposed about the periphery thereof and a platen disposed adjacent said character ring with said paper strip between said character ring and platen at the print position, the character ring selectively displaceable towards said platen for printing upon impact of said ring against the platen.
Claim 6
Dependent Claim
40 words
The hand-held printing calculator of claim 4, wherein said at least one print character ring is slideably mounted for displacement transverse to a paper strip in said calculator for printing at least two rows of characters on the paper strip.
References Cited (Backward Citations)
US3124230A
Cited
US994905A
Cited
US1182052A
Cited
FR1088297A
Cited
FR1090636A
Cited
US3430748A
Cited
US4212456A
Cited
US4040511A
Cited
US4143382A
Cited
US4095686A
Cited
US4258624A
Cited
GB2037665A
Cited
GB2046671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |