Patent US4119756A successfully refreshed from Google Patents.
US4119756A
Expired / Lapsed
US
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Method of manufacturing a marking pen having a nib and an ink reservoir integral therewith
Assignee: Glasrock Products Inc
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Filing: 1976-06-10
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Granted: 1978-10-10
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Expires: 1996-06-10
Abstract
Abstract A fibre bundle is first formed from loosely entangled fibres. Then, the fibre bundle is encased in a plastic shell and dipped into a solution of a synthetic resin in a solvent to fill the spaces among fibers with the solution. After taken out of said solution it is left to stand for a period of time during which the volatilization of the solvent forms a great number of capillary passages for the transudation of ink. After grinding a marking pen is obtained having a nib and an ink reservoir integral therewith.
Inventors
- 👤 Yoshio Midorikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:45
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/12; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A method for producing a writing nib material having an integral ink reservoir comprising: (a) forming a plurality of fibers into a fiber bundle; (b) cutting said fiber bundle to a predetermined length; then (c) impregnating a first portion of said predetermined length of said fiber bundle with a solution of polymerizable synthetic resin in solvent, leaving a second portion of said predetermined length of said fiber bundle untreated; and (d) allowing said resin in said first portion of said fiber bundle to set whereby the gases generated by volatization of the solvent form capillary passages substantially longitudinally of said bundle.
Claim 2
Independent Claim
101 words
A method for producing a writing nib material having an integral ink reservoir comprising: (a) forming a plurality of fibers into a fiber bundle; (b) cutting said fiber bundle to a predetermined length; then (c) impregnating a first portion of said predetermined length of said fiber bundle with a solution of polymerizable synthetic resin in solvent, leaving a second portion of said predetermined length of said fiber bundle untreated; and (d) allowing said resin in said first portion of said fiber bundle to set whereby the gases generated by volatization of the solvent form capillary passages substantially longitudinally of said bundle.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the resin is set with heating.
Claim 4
Dependent Claim
19 words
The method of claim 1 wherein said fiber bundle is encased in a plastic sheath prior to step b.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein said fiber bundle is impregnated by dipping.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein said fiber bundle is impregnated by spraying.
Claim 7
Dependent Claim
18 words
The method of claim 3 wherein said sheath is formed by melting the surface of the fiber bundle.
Claim 8
Dependent Claim
12 words
The method of claim 3 wherein said sheath is formed by extrusion.
Claim 9
Dependent Claim
9 words
The product formed by the process of claim 1.
Claim 10
Dependent Claim
9 words
The product formed by the process of claim 3.
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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) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |