Road structure – process – or apparatus – Traffic steering device or barrier
Reexamination Certificate
2006-05-02
2006-05-02
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Traffic steering device or barrier
C404S009000, C256S013000, C256S013100, C116S06300T, C116S228000, C049S049000, C049S131000
Reexamination Certificate
active
07037031
ABSTRACT:
An automatic barricade includes a trench across a road that is covered by a grate allowing vehicular traffic during normal dry weather. Inside the trench is a series of barricade elements, each of which includes a float. When rising water fills the trench to a predetermined level, each float rises and elevates the elements above the road. The barricade elements are sufficiently robust and intimidating to deter motorists from driving over them but are spaced apart to be light enough to be easily actuated by the float. The barricade elements are sufficiently close together that vehicles cannot pass between them. In another embodiment, a sensor is adjacent the trench to detect rising water and communicates with a motor connected to the barricade elements for raising them to a traffic blocking position.
REFERENCES:
patent: 1170545 (1916-02-01), Keenan
patent: 1203006 (1916-10-01), Keenan
patent: 1267061 (1918-05-01), Meyer
patent: 1694754 (1928-12-01), Peppin
patent: 1790602 (1931-01-01), Siefker
patent: 2325260 (1943-07-01), May
patent: 2607835 (1952-08-01), Bonar
patent: 3926143 (1975-12-01), Hothan
patent: 4377352 (1983-03-01), Goodstein
patent: 4577991 (1986-03-01), Rolow
patent: 4879545 (1989-11-01), Aguilar
patent: 4922655 (1990-05-01), Seal
patent: 5322385 (1994-06-01), Reisman
patent: 5460462 (1995-10-01), Regan
patent: 5862775 (1999-01-01), Stroud
patent: 6158696 (2000-12-01), Brodskiy
patent: 6224291 (2001-05-01), Mateychuk
patent: 6474903 (2002-11-01), Marts
patent: 6623209 (2003-09-01), Waters
patent: 6623210 (2003-09-01), Nomura et al.
patent: 6732479 (2004-05-01), Nomura et al.
patent: 2 665 465 (1990-08-01), None
patent: 2 731 726 (1995-03-01), None
Hartmann Gary S.
Moller G. Turner
LandOfFree
Automatic barricade for low water crossings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic barricade for low water crossings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic barricade for low water crossings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3629109