Smoothness indicator

Details Smoothness indicator Smoothness indicator

2007-11-19

2010-12-07

Addie, Raymond W (Department: 3671)

Road structure, process, or apparatus

Process

C404S083000, C404S084050, C404S093000

Reexamination Certificate

active

07845878

ABSTRACT:
A smoothness indicator for measuring a profile of a road surface includes two or more non-contact elevation distance sensors, such as ultrasonic sensors, laser sensors, or the like. The non-contact elevation distance sensors are arranged in pairs including a trailing non-contact elevation distance sensor and a leading non-contact elevation distance sensor disposed at a known distance from the trailing non-contact elevation distance sensor along the profile. A slope sensor for measuring an angle of incidence of the leading and trailing non-contact elevation distance sensors relative to a horizontal plane is also included. The smoothness indicator generates an elevation profile of the road surface by calculating an elevation for the second location using an elevation assigned to the first location and an elevation difference between the first location and the second location.

REFERENCES:
patent: 3341706 (1967-09-01), Swift et al.
patent: 3383913 (1968-05-01), Swift
patent: 4422322 (1983-12-01), Spangler
patent: 4473319 (1984-09-01), Spangler
patent: 4571695 (1986-02-01), Elton et al.
patent: 4685806 (1987-08-01), Arnberg
patent: 4695806 (1987-09-01), Barrett
patent: 4697352 (1987-10-01), Angove
patent: 4700223 (1987-10-01), Shoutaro et al.
patent: 4741207 (1988-05-01), Spangler
patent: 4823590 (1989-04-01), Kniest et al.
patent: 4899296 (1990-02-01), Khattak
patent: 5065618 (1991-11-01), Hodges, Sr. et al.
patent: 5075772 (1991-12-01), Gebel
patent: 5101360 (1992-03-01), Bennett
patent: 5201604 (1993-04-01), Ferguson et al.
patent: 5203923 (1993-04-01), Hartman
patent: 5258961 (1993-11-01), Sehr et al.
patent: 5280719 (1994-01-01), Noss
patent: 5288167 (1994-02-01), Gaffard et al.
patent: 5294210 (1994-03-01), Lemelson
patent: 5294798 (1994-03-01), Hartman
patent: 5323647 (1994-06-01), Blanco
patent: 5333969 (1994-08-01), Blaha et al.
patent: 5352063 (1994-10-01), Allen et al.
patent: 5362177 (1994-11-01), Bowhall et al.
patent: 5393167 (1995-02-01), Fujita et al.
patent: 5401115 (1995-03-01), Musil et al.
patent: 5546123 (1996-08-01), Okeda et al.
patent: 5549412 (1996-08-01), Malone
patent: 5568992 (1996-10-01), Grembowicz et al.
patent: 5588776 (1996-12-01), Swisher, Jr. et al.
patent: 5752783 (1998-05-01), Malone
patent: 5774374 (1998-06-01), Scott et al.
patent: 5790243 (1998-08-01), Herr
patent: 5829149 (1998-11-01), Tyson
patent: 5845220 (1998-12-01), Puthoff
patent: 5941658 (1999-08-01), Dahlinger et al.
patent: 6035542 (2000-03-01), Woznow et al.
patent: 6161429 (2000-12-01), Marvel et al.
patent: 6161986 (2000-12-01), Smith et al.
patent: 6279396 (2001-08-01), Imagawa et al.
patent: 6334735 (2002-01-01), Williams et al.
patent: 6520715 (2003-02-01), Smith
patent: 6749364 (2004-06-01), Baker et al.
patent: 6821052 (2004-11-01), Zurn
patent: 2009/0310143 (2009-12-01), Gardiner et al.
patent: 8-43064 (1996-02-01), None
patent: WO 01/44754 (2001-06-01), None

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