Baths – closets – sinks – and spittoons – Vapor or heat in bath
Reexamination Certificate
2007-12-18
2007-12-18
Nguyen, Tuan (Department: 3751)
Baths, closets, sinks, and spittoons
Vapor or heat in bath
C165S053000
Reexamination Certificate
active
10940897
ABSTRACT:
There is provided a hot bath facility (1) configured so that pipes (41) and (4) of two stages, upper and lower, are laid above floor concrete (3) in an enclosed bathroom (2), a training wave concrete layer (5) is formed above the pipes via a protective concrete layer (43), a rough stone flat plate (52) generating training wave energy is embedded in an appropriately divided space (51) substantially in a flush form, and on the other hand, into pipes (41, 4) of two stages, upper and lower, hot water can be supplied circulatingly from respective dedicated boilers (44, 45)
REFERENCES:
patent: 4011989 (1977-03-01), Diggs
patent: 4301859 (1981-11-01), Hollemann
patent: 4979373 (1990-12-01), Huppee
patent: 5097893 (1992-03-01), Trimble
patent: 8-12406 (1996-01-01), None
patent: 2001-95889 (2001-04-01), None
Lerner David Littenberg Krumholz & Mentlik LLP
Nguyen Tuan
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