Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Reexamination Certificate
2005-03-01
2005-03-01
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
C405S122000, C405S119000, C405S121000, C404S002000, C404S003000
Reexamination Certificate
active
06860678
ABSTRACT:
A channel system for forming a trench is disclosed that includes a number of precast drainage channel sections and one or more alignment keys for aligning and interlocking adjacent channel sections. Each alignment key includes a base shaped for laterally bridging across a predetermined exterior portion of adjacent bottom walls of the adjacent channel sections. The alignment key also includes first and second opposed, inwardly facing jaw members shaped for longitudinally bridging across a predetermined exterior portion of adjacent first and second sidewalls, respectively, of the adjacent channel sections. Each pair of the jaw members can be carried by a respective base, and can be positioned in a lateral and longitudinal direction relative to the respective base to thereby substantially align and interlock the adjacent channel sections.
REFERENCES:
patent: 985937 (1911-03-01), Reynolds
patent: 986025 (1911-03-01), Reynolds
patent: 1087791 (1914-02-01), Leavitt
patent: 3053494 (1962-09-01), Stoll
patent: 3611731 (1971-10-01), Edmondson
patent: 4498807 (1985-02-01), Kirkpatrick et al.
patent: 4787773 (1988-11-01), Kehler
patent: 4878782 (1989-11-01), Beattie et al.
patent: 5226748 (1993-07-01), Bärenwald et al.
patent: 5330147 (1994-07-01), Volcheff et al.
patent: 5372457 (1994-12-01), Rante
patent: 5522675 (1996-06-01), Gunter
patent: 5645367 (1997-07-01), Gunter
patent: 5702204 (1997-12-01), Gunter
patent: 5735637 (1998-04-01), Gunter
patent: 6012691 (2000-01-01), van Leeuwen et al.
patent: 6220784 (2001-04-01), Bricker
patent: 6494641 (2002-12-01), Bracale et al.
patent: B-7600191 (1991-09-01), None
patent: 0S 25 06 705 (1976-08-01), None
patent: 57-178019 (1982-11-01), None
patent: 40407337 (1992-03-01), None
patent: WO 7900848 (1979-11-01), None
ABT, Inc.
Lagman Frederick L.
LandOfFree
Method and apparatus for aligning channel sections with an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for aligning channel sections with an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for aligning channel sections with an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3390639