US3596596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide means for traveling roller in portable imprinters
Assignee: Farrington Business Machines Corp
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Filing: 1968-12-03
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Granted: 1971-08-03
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Expires: 1988-12-03
Abstract
Abstract A portable imprinter is disclosed, the construction thereof being particularly compact. The imprinting head moves along a pair of tracks disposed at opposite sides of the print bed, the head being guided along the tracks by wheels and guide members disposed on the opposite sides of the bottom thereof to respectively minimize vertical motion of the head with respect to the print bed and rotational motion with respect to an imaginary vertical axis passing through the head. The printing plates are placed directly on the bed and appropriate means are provided for securing them to the bed. Means are also provided for securing the document over the print bed, these means becoming operative after the imprinting head has left its rest position. Also provided are means disposed within the imprinting head for adjusting the initial clearance between the roller platen and the print bed, these means being operative to move the roller platen shaft downwardly against the upwardly acting force exerted by a spring disposed within the head. Means are also disclosed for raising the roller platen upwardly from the print bed after an imprinting operation, the roller platen being lowered to its print position immediately upon its return to the rest position of the head. Means attached to the imprinting head and projecting from the front thereof are also provided for holding the document in place during the imprinting operation.
Inventors
- 👤 Herbert G Chillingworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:11
CPC Classifications
B; B41; B41L; B41L45/00; B41L45/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
244 words
A portable imprinter comprising: a base member having a print bed disposed on the top thereof and tracks extending along opposite sides thereof, said tracks having inner surfaces and being substantially enclosed at the top and bottom along the length thereof; an imprinting head disposed over said print bed for movement thereover to effect imprinting, said imprinting head including a roller platen and at least a pair of guide means having respective outer surfaces disposed at each side thereof, each said pair of guide means being respectively disposed in said tracks, the distance across said print bed between the inner surfaces of said tracks being related to the distance across said print bed between the outer surfaces of said guide means so as to minimize rotational movement of said head about an imaginary vertical axis extending therethrough approximately at the center thereof; a pair of wheels disposed at said each side of said imprinting head, each said pair of wheels also respectively disposed in said tracks to permit movement of said head along said tracks and the diameter of each of said wheels being slightly less than the distance between the top and bottom of said tracks to thereby minimize vertical movement of said head with respect to said print bed; said portable imprinter effecting an imprinting of data from printing plates placed on said print bed to documents placed over said print bed whenever said imprinting head is moved over said print bed.
Claim 2
Dependent Claim
244 words
A portable imprinter comprising: a base member having a print bed disposed on the top thereof and tracks extending along opposite sides thereof, said tracks having inner surfaces and being substantially enclosed at the top and bottom along the length thereof; an imprinting head disposed over said print bed for movement thereover to effect imprinting, said imprinting head including a roller platen and at least a pair of guide means having respective outer surfaces disposed at each side thereof, each said pair of guide means being respectively disposed in said tracks, the distance across said print bed between the inner surfaces of said tracks being related to the distance across said print bed between the outer surfaces of said guide means so as to minimize rotational movement of said head about an imaginary vertical axis extending therethrough approximately at the center thereof; a pair of wheels disposed at said each side of said imprinting head, each said pair of wheels also respectively disposed in said tracks to permit movement of said head along said tracks and the diameter of each of said wheels being slightly less than the distance between the top and bottom of said tracks to thereby minimize vertical movement of said head with respect to said print bed; said portable imprinter effecting an imprinting of data from printing plates placed on said print bed to documents placed over said print bed whenever said imprinting head is moved over said print bed.
Claim 3
Dependent Claim
30 words
Apparatus as in claim 1 where said imprinting head includes means for establishing the initial clearance of the roller platen of said imprinting head with respect to said print bed.
Claim 4
Dependent Claim
27 words
Apparatus as in claim 2 including means disposed on said print bed for securing the edge of said document to said print bed during the imprinting operation.
Claim 5
Dependent Claim
62 words
Apparatus as in claim 3 where said base member includes a rest position disposed approximately at one end thereof for said imprinting head and where said imprinting head includes means acting upon said document-securing means when the head is moved to its rest position to thereby permit a document to be inserted into said document-securing means preparatory to the next imprinting operation.
Claim 6
Dependent Claim
37 words
Apparatus as in claim 4 where said document-securing means includes means for securing the edge of said document to said print bed immediately after said head is moved from its rest position to effectuate an imprinting operation.
Claim 7
Dependent Claim
31 words
Apparatus as in claiM 3 including means projecting from the front of said imprinting head for keeping the surface of said document adjacent said print bed as said imprinting operation occurs.
Claim 8
Dependent Claim
126 words
Apparatus as in claim 1 where said imprinting head includes at least one actuating finger rotatably connected thereto and where the roller platen is rotatably mounted with respect to said imprinting head and connected to said actuating finger and where said base includes posts projecting into said tracks and disposed at opposite ends thereof, said actuating fingers effectuating the rotation of said roller platen in response to the engagement of said actuating fingers by said posts; said apparatus including means for raising said roller platen from said print bed when the imprinting head reaches the end of its imprinting stroke and said apparatus including means for lowering said roller assembly to its print position immediately upon the return of said imprinting head to its rest position.
Claim 9
Dependent Claim
27 words
Apparatus as in claim 2 where said printing plates are disposed directly on said print bed, said bed including means for securing said plates to said bed.
Claim 10
Dependent Claim
30 words
Apparatus as in claim 1 where said distance between the inner surfaces of said tracks is slightly greater than the said distance between the outer surface of said guide means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |