Collector type writing instrument
First Claim
1. (amended) A collector type writing instrument including:
- a point assembly with a writing point at a tip thereof, an ink tank for storing a low viscosity ink in a free-state ink condition, an ink feeder portion extended from the ink tank to the point assembly, and a collector disposed between the ink tank and the point assembly as an adjuster element for storing ink within a plurality of grooves when an inner pressure is adjusted, the writing instrument characterized in that;
the ink tank is formed therein with a snorkel having, integrally or as a separate part, a sectioning portion for substantially separating the ink tank without an ink conduit into a front tank and a rear tank, and a vent portion for establishing air communication between the front and rear spaces divided by the sectioning portion, the ink conduit is sized so as to be more unlikely to pass air than the vent portion does, and is formed in the sectioning portion, an inner wall of the ink tank, or both of the sectioning portion and the inner wall of the ink tank, the vent portion of the snorkel allows an air bubble to pass through, and has a front opening arranged at a rear end side of the collector and a rear opening arranged at a approximate center of, or at a position more rearward than, the ink tank, and the snorkel is molded of the same material as the collector is or is subjected to the same surface reforming treatment as the collector is, so that the snorkel is equivalent in wettability to the collector.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a collector type writing instrument including: a collector for temporarily storing ink therein upon a change in inter pressure, a sectioning portion for substantially separating its ink tank for storing ink, and a snorkel having a vent portion for establishing air communication between the front and rear spaces divided by the sectioning portion or an ink absorber for reducing the inner tank volume, wherein the snorkel or the cladding of the ink absorber is molded of the same material as the collector or the ink tank is or is subjected to the same wettability reforming treatment as the collector or the ink tank is.
11 Citations
3 Claims
-
1. (amended) A collector type writing instrument including:
- a point assembly with a writing point at a tip thereof, an ink tank for storing a low viscosity ink in a free-state ink condition, an ink feeder portion extended from the ink tank to the point assembly, and a collector disposed between the ink tank and the point assembly as an adjuster element for storing ink within a plurality of grooves when an inner pressure is adjusted,
the writing instrument characterized in that;
the ink tank is formed therein with a snorkel having, integrally or as a separate part, a sectioning portion for substantially separating the ink tank without an ink conduit into a front tank and a rear tank, and a vent portion for establishing air communication between the front and rear spaces divided by the sectioning portion, the ink conduit is sized so as to be more unlikely to pass air than the vent portion does, and is formed in the sectioning portion, an inner wall of the ink tank, or both of the sectioning portion and the inner wall of the ink tank, the vent portion of the snorkel allows an air bubble to pass through, and has a front opening arranged at a rear end side of the collector and a rear opening arranged at a approximate center of, or at a position more rearward than, the ink tank, and the snorkel is molded of the same material as the collector is or is subjected to the same surface reforming treatment as the collector is, so that the snorkel is equivalent in wettability to the collector. - View Dependent Claims (3)
- a point assembly with a writing point at a tip thereof, an ink tank for storing a low viscosity ink in a free-state ink condition, an ink feeder portion extended from the ink tank to the point assembly, and a collector disposed between the ink tank and the point assembly as an adjuster element for storing ink within a plurality of grooves when an inner pressure is adjusted,
-
2. (amended) A collector type writing instrument including:
- a point assembly with a writing point at a tip thereof, an ink tank for storing a low viscosity ink in a free-state ink condition, an ink feeder portion extended from the ink tank to the point assembly, and a collector disposed between the ink tank and the point assembly as an adjuster element for storing ink within a plurality of grooves when an inner pressure is adjusted,
the writing instrument characterized in that;
the ink tank is formed therein with a snorkel having, integrally or as a separate part, a sectioning portion for substantially separating the ink tank without an ink conduit into a front tank and a rear tank, and a vent portion for establishing air communication between the front and rear spaces divided by the sectioning portion, the ink conduit is sized so as to be more unlikely to pass air than the vent portion does, and is formed in the sectioning portion, an inner wall of the ink tank, or both of the sectioning portion and the inner wall of the ink tank, the vent portion of the snorkel allows an air bubble to pass through, and has a front opening arranged at a rear end side of the collector and a rear opening arranged at a approximate center of, or at a position more rearward than, the ink tank, and the snorkel is molded of the same material as the ink tank or is subjected to a surface reforming treatment as the ink tank is, so that the snorkel is equivalent in wettability to the ink tank.
- a point assembly with a writing point at a tip thereof, an ink tank for storing a low viscosity ink in a free-state ink condition, an ink feeder portion extended from the ink tank to the point assembly, and a collector disposed between the ink tank and the point assembly as an adjuster element for storing ink within a plurality of grooves when an inner pressure is adjusted,
Specification