Excavating – Beneath a body of water – Scoop or bucket
Reexamination Certificate
2005-12-12
2009-06-30
Beach, Thomas A (Department: 3671)
Excavating
Beneath a body of water
Scoop or bucket
C037S318000, C037S317000, C037S335000
Reexamination Certificate
active
07552551
ABSTRACT:
Dredge heads, for use with a dredging system, include one or more movable members, e.g. grate members, adapted and configured to selectively extend across the opening of the dredge head. The movable member(s) enables a user to clear the dredge head of plugging masses or blockages without having to de-energize the dredge system pump. Also, the movable member(s) enable a user to clear the dredge head of plugging masses or blockages without requiring the user to manually, by using his or her hand, withdraw the plugging masses or blockages from the opening of the suction/dredge heads.
REFERENCES:
patent: 216061 (1879-06-01), Shaw
patent: 307326 (1884-10-01), Pattison
patent: 371686 (1887-10-01), Howell
patent: 1101541 (1914-06-01), Harrington
patent: 1508521 (1924-09-01), Kreuser
patent: 1964951 (1934-07-01), Kertzman
patent: 2023686 (1935-12-01), Kertzman
patent: 2081597 (1937-05-01), Nowak
patent: 2643471 (1953-06-01), Ragsdale
patent: 3287755 (1966-11-01), Pansini
patent: 4113616 (1978-09-01), Kaes
patent: 4178704 (1979-12-01), Latimer et al.
patent: 4318233 (1982-03-01), Romain
patent: 4347675 (1982-09-01), Latimer
patent: 4352251 (1982-10-01), Sloan
patent: 4765071 (1988-08-01), Maitlen
patent: 4819346 (1989-04-01), Maitlen
patent: 4957622 (1990-09-01), Mims
patent: 5651200 (1997-07-01), Walsh et al.
patent: 6083063 (2000-07-01), Neisen
patent: 6283805 (2001-09-01), Ishigaki
patent: 6482055 (2002-11-01), Freitag
patent: 2004/0010867 (2004-01-01), Habit et al.
Beach Thomas A
Buck Matthew R
Connelly Thomas J.
Wilhelm Law Service
LandOfFree
Suction head for sediment dredge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction head for sediment dredge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction head for sediment dredge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4148212