US3621967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid emission typewriter
Assignee: Individual
•
Filing: 1969-05-02
•
Granted: 1971-11-23
•
Expires: 1989-05-02
Abstract
Abstract A typewriter is provided which includes a source of liquid under pressure and a wheel carrying character openings on its periphery. A burst of fluid under pressure is caused to pass through an opening adjacent to a liquid discharge outlet after the character-bearing wheel is indexed in conformity with the depression of a typewriter key.
Inventors
- 👤 Irving I Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:19
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A typewriter comprising a movable character member having thereon a plurality of character forming openings, fluid supply means including a discharge outlet for directing a burst of fluid through a juxtaposed said opening, a closed container of liquid maintained under superatmospheric pressure through repeated operations of said typewriter, and conduit means including valve means for fluid connecting said container to said outlet, means for indexing said member to position a desired said opening in juxtaposition with said outlet and thereafter opening and closing said valve means to discharge a burst of fluid through said thus positioned opening, and means for supporting a record element adjacent to said character member to receive fluid passed through said opening.
Claim 2
Dependent Claim
116 words
A typewriter comprising a movable character member having thereon a plurality of character forming openings, fluid supply means including a discharge outlet for directing a burst of fluid through a juxtaposed said opening, a closed container of liquid maintained under superatmospheric pressure through repeated operations of said typewriter, and conduit means including valve means for fluid connecting said container to said outlet, means for indexing said member to position a desired said opening in juxtaposition with said outlet and thereafter opening and closing said valve means to discharge a burst of fluid through said thus positioned opening, and means for supporting a record element adjacent to said character member to receive fluid passed through said opening.
Claim 3
Dependent Claim
19 words
The typewriter of claim 1, said character member comprising a disc, and shaft means supporting said disc for rotation.
Claim 4
Dependent Claim
15 words
The typewriter of claim 2, said discharge outlet being substantially parallel to said shaft means.
Claim 5
Dependent Claim
16 words
The typewriter of claim 2, and means for releasably mounting said disc on said shaft means.
Claim 6
Dependent Claim
17 words
The typewriter of claim 1, and means for releasably connecting said container and said fluid connecting means.
Claim 7
Dependent Claim
41 words
The typewriter of claim 1, said means for indexing said member comprising a keyboard having plural, selectively actuatable key means, and means for positioning each character opening on Said character member in response to the actuation of a corresponding key means.
Claim 8
Dependent Claim
53 words
The typewriter of claim 1, wherein said means for supporting a record element comprises a carriage section, means mounting said carriage section for movement between positions spaced from and closely adjacent said character member, and means for moving said carriage section to said closely adjacent position subsequent to indexing of said character member.
Claim 9
Dependent Claim
35 words
The typewriter of claim 7, wherein said means for opening and closing said valve means comprises means actuated by said movement of said carriage section to said closely adjacent position for opening said valve means.
Claim 10
Dependent Claim
86 words
The typewriter of claim 1, said record element support means comprising a carriage mounted for lateral movement in relation to said discharge outlet, said carriage comprising a pivoted section, and means pivotally mounting said pivoted section for movement about an axis transverse to said discharge outlet, said pivoted section comprising a platen adjacent to said character member and on the opposite side thereof from said discharge outlet, whereby pivotal movement of said pivoted section will cause said platen to move toward and from said character member.
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |