US3880548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink pump
Assignee: Individual
•
Filing: 1973-07-05
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Granted: 1975-04-29
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Expires: 1993-07-05
Abstract
Abstract There is disclosed a printing, feeding and severing method and apparatus for carrying out the method. The apparatus includes a print head assembly and a platen assembly movable relatively toward and away from each other into and out of printing cooperation, mechanism for inking the print head assembly, mechanism for feeding a web of record members to between the print head assembly and the platen assembly, the web being in roll form and there being means to assist the gradual unwinding of the roll with gradual paying out of web material from the roll to the feeding mechanism, an idler contacting the web and disposed at a slight angle to the direction of feed of the web to cause the web to follow a feed edge, record severing means disposed downstream of the print head assembly and the platen assembly, and a modular support assembly of a print head of the print head assembly. The inking mechanism includes an improved ink pump.
Inventors
- 👤 Jr Raymond L Kirby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:59
CPC Classifications
F; F04; F04D; F04D3/00; F04D3/02; B; B41; B41F; B41F1/00; B41F1/26; B41F1/265; B41F13/00; B41F13/02; B41F13/04; B41F31/00; B41F31/02; B41F31/08; B41K; B41K3/00; B41K3/44; B41K3/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
195 words
A pump, comprising: a liquid container including a plate, a one-piece pump body extending through the plate and into the container, the pump body having a straight bore and a liquid inlet providing communication between the inside of the container and the bore, the pump body having a flange and a threaded section on one side of the flange, a nut received by the Threaded section, the plate being disposed and held between the flange and the nut, a curved tube connected to the pump body on the other side of the flange and communicating with the bore, a helical spring rotatable in the tube and having a portion extending into the bore, a straight rod disposed substantially only within the portion of the spring in the pump body, the rod and the spring being in contact and being rotatable as a unit in the bore, and means for driving the spring and the rod as a unit, there being only slight clearance between the spring and the bore so that as the spring and the rod rotate, liquid between the rod and the bore and between the coils of the spring is conveyed upwardly.
Claim 2
Dependent Claim
195 words
A pump, comprising: a liquid container including a plate, a one-piece pump body extending through the plate and into the container, the pump body having a straight bore and a liquid inlet providing communication between the inside of the container and the bore, the pump body having a flange and a threaded section on one side of the flange, a nut received by the Threaded section, the plate being disposed and held between the flange and the nut, a curved tube connected to the pump body on the other side of the flange and communicating with the bore, a helical spring rotatable in the tube and having a portion extending into the bore, a straight rod disposed substantially only within the portion of the spring in the pump body, the rod and the spring being in contact and being rotatable as a unit in the bore, and means for driving the spring and the rod as a unit, there being only slight clearance between the spring and the bore so that as the spring and the rod rotate, liquid between the rod and the bore and between the coils of the spring is conveyed upwardly.
Claim 3
Dependent Claim
227 words
A pump, comprising: a liquid container including a plate, a one-piece pump body extending through the plate and into the container, the pump body having a straight bore and a liquid inlet providing communication between the inside of the container and the bore, the pump body having a flange and a threaded section on one side of the flange, a nut received by the threaded section, the plate being disposed and held between the flange and the nut, a curved tube connected to the pump body on the other side of the flange and communicating with the bore, a helical spring rotatable in the tube and having a portion extending into the bore, a straight rod disposed substantially only within the portion of the spring in the pump body, the inside diameter of the rod being greater than the internal diameter of the spring before the rod is inserted into the spring so that when the rod is inserted into the spring the spring grips the rod and the rod and the spring are rotatable as a unit, and means for driving the spring and the rod as a unit, there being only slight clearance between the spring and the bore so that as the spring and the rod rotate, liquid between the rod and the bore and between the coils of the spring is conveyed upwardly.
Claim 4
Dependent Claim
227 words
A pump, comprising: a liquid container including a plate, a one-piece pump body extending through the plate and into the container, the pump body having a straight bore and a liquid inlet providing communication between the inside of the container and the bore, the pump body having a flange and a threaded section on one side of the flange, a nut received by the threaded section, the plate being disposed and held between the flange and the nut, a curved tube connected to the pump body on the other side of the flange and communicating with the bore, a helical spring rotatable in the tube and having a portion extending into the bore, a straight rod disposed substantially only within the portion of the spring in the pump body, the inside diameter of the rod being greater than the internal diameter of the spring before the rod is inserted into the spring so that when the rod is inserted into the spring the spring grips the rod and the rod and the spring are rotatable as a unit, and means for driving the spring and the rod as a unit, there being only slight clearance between the spring and the bore so that as the spring and the rod rotate, liquid between the rod and the bore and between the coils of the spring is conveyed upwardly.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |