GB651509A - Improvements in and relating to reservoir writing instruments - Google Patents
Improvements in and relating to reservoir writing instrumentsInfo
- Publication number
- GB651509A GB651509A GB13210/50A GB1321050A GB651509A GB 651509 A GB651509 A GB 651509A GB 13210/50 A GB13210/50 A GB 13210/50A GB 1321050 A GB1321050 A GB 1321050A GB 651509 A GB651509 A GB 651509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capillary
- reservoir
- air inlet
- relating
- capillary part
- 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
Landscapes
- Pens And Brushes (AREA)
Abstract
651,509. Reservoir pens. CIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. Jan. 26, 1948, No. 13210/50. Divided out of 651,481. Drawings to Specification. [Class 146 (iii)] A reservoir for a ball-point pen comprises a non-capillary part, an ink-feed duct which is of capillary size at least adjacent to the non-capillary part, and an air inlet constituted by a capillary duct, the volume of the air inlet being sufficiently large to prevent ink running out of it under the combined effects of gravity and expansion of the contents of the non-capillary part due to variations in temperature and atmospheric pressure. The embodiment described is similar to that described in Specificaton 651,481. Specifications 564,172, 571,698, 573,747, 602,101, 609,817 and 629,283 also are referred to.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE486886D BE486886A (en) | 1948-01-26 | ||
GB13210/50A GB651509A (en) | 1948-01-26 | 1948-01-26 | Improvements in and relating to reservoir writing instruments |
FR1040556D FR1040556A (en) | 1948-01-26 | 1949-01-14 | Improvements to reservoir pen holders and reservoir manufacturing processes for them |
CH275469D CH275469A (en) | 1948-01-26 | 1949-01-17 | Ballpoint pen. |
GB24336/50A GB721433A (en) | 1948-01-26 | 1950-10-05 | Improvements in and relating to reservoir writing instruments |
CH299219D CH299219A (en) | 1948-01-26 | 1951-10-03 | Ballpoint pen. |
FR62133D FR62133E (en) | 1948-01-26 | 1951-10-05 | Improvements to reservoir pen holders and reservoir manufacturing processes for them |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB225648A GB651481A (en) | 1948-01-26 | 1948-01-26 | Improvements in and relating to reservoir writing instruments |
GB13210/50A GB651509A (en) | 1948-01-26 | 1948-01-26 | Improvements in and relating to reservoir writing instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB651509A true GB651509A (en) | 1951-04-04 |
Family
ID=26237401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13210/50A Expired GB651509A (en) | 1948-01-26 | 1948-01-26 | Improvements in and relating to reservoir writing instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB651509A (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 |
-
1948
- 1948-01-26 GB GB13210/50A patent/GB651509A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4565463A (en) * | 1983-03-20 | 1986-01-21 | Pentel Kabushiki Kaisha | Aqueous ink cartridge with two part vent plug |
GB2139153A (en) * | 1983-03-23 | 1984-11-07 | Pentel Kk | An aqueous ink cartridge for a writing instrument |
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