Patent US3589824A successfully refreshed from Google Patents.
US3589824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge marker construction
Assignee: Mark-Tex Corp
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Filing: 1969-10-09
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Granted: 1971-06-29
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Expires: 1989-10-09
Abstract
Abstract A cartridge marker having a permanent outer tube element and an expendable inner tube element containing a supply of marking fluid dispensed through a valve at one end thereof. A markingfluid-dispensing nib is mounted in the outer tube element, and opens the valve in the inner tube element upon the exertion of pressure at an opposite end of the inner tube element resulting in relative movement between the inner and outer tube elements.
Inventors
- 👤 Francis W Andrews
- 👤 Philip S Sussman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:59
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/02; B43K5/00; B43K5/18; B43K5/1818; B43K5/1827; B43K5/1836; B43K5/1863; B43K5/1872
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
A cartridge-type marker comprising: an outer tube element and an inner tube element; said outer tube element having an axially disposed first hollow bore and a nose member having a second bore communicating with said first-mentioned bore; a nib disposed in said second bore in such manner as to permit flow of a marking fluid therethrough; said inner tube element having a hollow bore therein, and being closed at one end thereof to form a marking fluid reservoir, and having valve means at a second opposite end thereof for the dispensing of marking fluid therethrough; elastomeric means interconnecting said marking fluid reservoir and said bore in said nose member to effect a sealed communication therebetween; and means adapted to periodically operate said valve member upon the occurrence of coaxial relative movement between said inner and outer tube elements.
Claim 2
Dependent Claim
138 words
A cartridge-type marker comprising: an outer tube element and an inner tube element; said outer tube element having an axially disposed first hollow bore and a nose member having a second bore communicating with said first-mentioned bore; a nib disposed in said second bore in such manner as to permit flow of a marking fluid therethrough; said inner tube element having a hollow bore therein, and being closed at one end thereof to form a marking fluid reservoir, and having valve means at a second opposite end thereof for the dispensing of marking fluid therethrough; elastomeric means interconnecting said marking fluid reservoir and said bore in said nose member to effect a sealed communication therebetween; and means adapted to periodically operate said valve member upon the occurrence of coaxial relative movement between said inner and outer tube elements.
Claim 3
Dependent Claim
31 words
Structure in accordance with claim 1, said inner tube element extending outwardly of said outer tube element at said closed end thereof, for manual manipulation relative to said outer tube eLement.
Claim 4
Dependent Claim
17 words
Structure in accordance with claim 2, including bayonet-type interconnecting means between said inner and outer tube elements.
Claim 5
Dependent Claim
33 words
Structure in accordance with claim 1, in which said elastomeric means possesses sufficient resiliency to maintain a sealed relation between said inner and outer tube elements irrespective of the relative axial position therebetween.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |