Hydraulic and earth engineering – Drainage or irrigation
Reexamination Certificate
2005-06-14
2005-06-14
Singh, Sunil (Department: 3673)
Hydraulic and earth engineering
Drainage or irrigation
C405S118000, C404S002000, C404S004000
Reexamination Certificate
active
06905285
ABSTRACT:
A slot drain including a throat portion having two walls and a separator arranged to separate the two walls. The separator includes lateral projections passing through holes in the two walls. The lateral projections are bent over the two walls to retain the two walls against the separator as well as to maintain the separator in position.
REFERENCES:
patent: 1700889 (1929-02-01), Heltzel
patent: 3815213 (1974-06-01), Evans et al.
patent: 5538361 (1996-07-01), Beamer
patent: 5564857 (1996-10-01), Schluter
patent: 5971662 (1999-10-01), Becker et al.
patent: 0 167 384 (1986-01-01), None
patent: 0167384 (1986-01-01), None
patent: 0893545 (1999-10-01), None
“Bauelemente Der Feinmechanik,” Richter et al.,Bauelemente Der Feinmechanik, 1959, pp. 151-156.
Bradbeer Simon Francis Godwin
Little Colin George
Alumasc Limited
Arent & Fox PLLC
Singh Sunil
LandOfFree
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