Hot and cold water mixing device
First Claim
1. A hot and cold water mixing device comprising:
- an outer casing formed at least in part of resin material and having respective openings communicating with a hot water supply passage, a cold water supply passage and a mixed water delivery passage;
a hollow inner casing inserted into said outer casing with a radial gap remaining therebetween and formed with two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and with a secondary water hole communicating with said mixed water delivery passage, said water holes opening through the outer surface side of said inner casing;
separating members arranged in said gap and forming at least two primary water passages between said outer and inner casings, said passages communicating with a hot water supply source and a cold water supply source respectively; and
a means for controlling the fluid flowing into and out of said inner casing through the respective water holes thereof, said control means being disposed within said inner casing and being of cartridge construction.
1 Assignment
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Accused Products
Abstract
A hot and cold water mixing device comprises an outercasing having openings 51, 52, 170a and 180a which communicate with a hot water supply passage, a cold water supply passage and a mixed water delivery passage, respectively, and a hollow inner casing 60 formed with two primary water holes communicating with the hot water supply passage and the cold water supply passage, respectively, and with a secondary water hole communicating with the mixed water delivery passage, said primary and secondary water holes being penetrated from the outer surface of the inner casing. The inner casing 60 is inserted into the outer casing 50 with a gap remaining radially therebetween, and further, separating members 77 are arranged within the gap, so that fluid passages 55, 176 and 184 are defined between the outer casing 50 and the inner casing 60. All or a portion of the outer casing 50 is formed using a resin material such as engineering plastics or the like.
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Citations
17 Claims
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1. A hot and cold water mixing device comprising:
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an outer casing formed at least in part of resin material and having respective openings communicating with a hot water supply passage, a cold water supply passage and a mixed water delivery passage; a hollow inner casing inserted into said outer casing with a radial gap remaining therebetween and formed with two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and with a secondary water hole communicating with said mixed water delivery passage, said water holes opening through the outer surface side of said inner casing; separating members arranged in said gap and forming at least two primary water passages between said outer and inner casings, said passages communicating with a hot water supply source and a cold water supply source respectively; and a means for controlling the fluid flowing into and out of said inner casing through the respective water holes thereof, said control means being disposed within said inner casing and being of cartridge construction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hot and cold water mixing device comprising:
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an outer casing having respective openings communicating with a hot water supply passage, a cold water supply passage and a mixed water delivery passage; a hollow inner casing inserted into said outer casing with a radial gap remaining therebetween and formed with two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and with a secondary water hole communicating with said mixed water delivery passage, said water holes opening through the outer surface side of said inner casing; and separating members for defining fluid passages within said gap between said outer and inner casings; said outer casing comprising an outer tubular body made of metal and a further tubular body made of resin fitted to the interior of said outer tubular body with a gap remaining next to the inner surface of said outer tubular body. - View Dependent Claims (12, 13, 14, 15)
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16. A hot and cold water mixing device comprising:
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an outer casing having respective openings communicating with a hot water supply passage, a cold water supply passage, and a mixed water delivery passage; a hollow inner casing inserted into said outer casing with a radial gap remaining therebetween and formed with two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and with a secondary water hole communicating with said mixed water delivery passage, said water holes opening through the outer surface side of said inner casing; and separating members for defining fluid passages within said gap between said outer and inner casings; said outer casing comprising a metal tubular body having two ends and a further resin tubular body having two ends and fitted to the interior of said metal tubular body through elastic rings mounted on the two ends of both said resin tubular body and said metal tubular body.
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17. A hot and cold water mixing device comprising:
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an outer casing having respective openings which communicate with a hot water supply passage, a cold water supply passage, and a mixed water delivery passage; a hollow inner casing inserted into said outer casing with a radial gap remaining therebetween and formed with two primary water holes communicating with said hot water supply passage and said cold water supply passage, respectively, and with a secondary water hole communicating with said mixed water delivery passage, said water holes opening through the outer surface side of said inner casing; and separating members for defining fluid passages within said gap between said outer and inner casings; said outer casing comprising a first tubular body made of resin, a second tubular body made of resin fitted to said first tubular body with a gap remaining radially from the inner surface of said first tubular body, and an intermediate member in said gap.
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Specification