Drainage element

Details Drainage element Drainage element

2008-09-02

2008-09-02

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Drainage or irrigation

Porous waterway, e.g., sand drain, etc.

C405S302600, C405S302700, C156S293000

Reexamination Certificate

active

11248754

ABSTRACT:
The machine for making the drainage elements employs a forming collar about the delivery chute for the aggregate so as to form a continuously supplied strip of netting into a tube to receive the aggregate. The machine may be run on an automatic basis without a need to stop the machine in order to replenish the supply of netting. A pair of tapes are used to secure the longitudinal edges of the tape together, one tape located inside the tube and the other tape located outside the tube.

REFERENCES:
patent: 3996721 (1976-12-01), Mercer
patent: 4322929 (1982-04-01), Neumann
patent: 5100258 (1992-03-01), VanWagoner
patent: 5356007 (1994-10-01), Feldt
patent: 5419659 (1995-05-01), Mercer
patent: 5452968 (1995-09-01), Dlugosz
patent: 5535499 (1996-07-01), Houck et al.
patent: 5595652 (1997-01-01), Rainer
patent: 5823683 (1998-10-01), Antonacci et al.
patent: 6185908 (2001-02-01), Madderom
patent: 6547493 (2003-04-01), Spangler et al.
patent: 6848866 (2005-02-01), McGinn
patent: 6921484 (2005-07-01), Engwer
patent: 7008144 (2006-03-01), McGinn
patent: 2003/0031511 (2003-02-01), Tyler
patent: 2005/0236315 (2005-10-01), McPhillips
patent: 2007/0003369 (2007-01-01), Hanson et al.

Affiliated with

Also associated with

Rating

Drainage element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drainage element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drainage element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3938030