GB801910A - Improvements in ink tubes for ball point pens - Google Patents
Improvements in ink tubes for ball point pensInfo
- Publication number
- GB801910A GB801910A GB3017956A GB3017956A GB801910A GB 801910 A GB801910 A GB 801910A GB 3017956 A GB3017956 A GB 3017956A GB 3017956 A GB3017956 A GB 3017956A GB 801910 A GB801910 A GB 801910A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- reservoir
- tube
- groove
- inch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K7/00—Ball-point pens
- B43K7/02—Ink reservoirs; Ink cartridges
- B43K7/08—Preventing leakage
Landscapes
- Pens And Brushes (AREA)
Abstract
801,910. Reservoir pens. SCRIPTO Inc Oct. 3, 1956, No. 30179/56. Class 146(3) The end portion 18 of the reservoir tube 10 of a ballpoint pen has at least one exterior air-vent groove 22 extending from the rear end at 26, and a closure cap 16 is fitted over the portion 18 to cover the groove 22 but leaving the forward end of the groove open to atmosphere and the rear end at 26 in communication with the interior of the reservoir. There may be three or more grooves 22, formed during the moulding of the reservoir tube, and these may be of rectangular cross-section with a depth of about 0.0025 inch and a width of at least 0.002 inch. Such fine grooves prevent leakage of a quick drying ink under all conditions, since the minute amounts of ink which can enter the grooves are exposed to the atmosphere and are dried rapidly to seal up the grooves. The tube 10 may be of transparent material, and the cap 16 of metal. Specification 791,109 is referred to.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3017956A GB801910A (en) | 1956-10-03 | 1956-10-03 | Improvements in ink tubes for ball point pens |
US677059A US2871824A (en) | 1956-10-03 | 1957-08-08 | Leakproof ink tube for ball point pen |
GB3149257A GB808617A (en) | 1956-10-03 | 1957-10-08 | Leakproof ink tube for ball point pen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3017956A GB801910A (en) | 1956-10-03 | 1956-10-03 | Improvements in ink tubes for ball point pens |
Publications (1)
Publication Number | Publication Date |
---|---|
GB801910A true GB801910A (en) | 1958-09-24 |
Family
ID=10303525
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3017956A Expired GB801910A (en) | 1956-10-03 | 1956-10-03 | Improvements in ink tubes for ball point pens |
GB3149257A Expired GB808617A (en) | 1956-10-03 | 1957-10-08 | Leakproof ink tube for ball point pen |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3149257A Expired GB808617A (en) | 1956-10-03 | 1957-10-08 | Leakproof ink tube for ball point pen |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB801910A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139153A (en) * | 1983-03-23 | 1984-11-07 | Pentel Kk | An aqueous ink cartridge for a writing instrument |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1253614B (en) * | 1960-01-28 | 1967-11-02 | Montblanc Simplo Gmbh | Closure piece for a refill tube of a ballpoint pen |
-
1956
- 1956-10-03 GB GB3017956A patent/GB801910A/en not_active Expired
-
1957
- 1957-10-08 GB GB3149257A patent/GB808617A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139153A (en) * | 1983-03-23 | 1984-11-07 | Pentel Kk | An aqueous ink cartridge for a writing instrument |
Also Published As
Publication number | Publication date |
---|---|
GB808617A (en) | 1959-02-04 |
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