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US 10,245,839 B2Granted
Cap for ink tank, ink tank, and ink-jet recording apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsKenjiro Imai, Ryuji Kato
Life of this patent
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Abstract
There is provided an ink tank cap configured to open and close an ink inlet port of an ink tank, the ink tank cap including a contacting portion contacting with the ink inlet port, wherein the contacting portion of the ink tank cap is formed of an ethylene-propylene-diene rubber containing silicone.
Claims15
An ink tank comprising:
- a tank body having an ink inlet port and configured to accommodate an ink therein;
- and
- an ink tank cap configured to open and close the ink inlet port of the ink tank, and having a contacting portion of which contacts with the ink inlet port, and which is formed of an ethylene-propylene-diene rubber containing silicone;
- a content amount of the silicone in the ethylene-propylene-diene rubber containing the silicone is in a range of 1 part by weight to 15 parts by weight with respect to 100 parts by weight of the ethylene-propylene-diene rubber;
- and
- a material forming the tank body is selected from the group consisting of polypropylene, polyethylene, polyphenylene ether, and a mixed resin of polybutylene terephthalate and an acrylonitrile-butadiene-styrene resin.
3 more elements
Dependencies are inferred from the claim text.