Road structure – process – or apparatus – Apparatus – Automatic control
Reexamination Certificate
2006-05-16
2006-05-16
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Apparatus
Automatic control
C404S114000, C404S118000
Reexamination Certificate
active
07044681
ABSTRACT:
A soft landing control system for a screeding device is operable to automatically lower a vibrating member of a screed head assembly into engagement with a concrete surface at a time and place where the vibrating member is not positioned over an overlap area of already screeded concrete. The vibrating member is automatically lowered onto newly placed concrete at or near the junction or cold-joint between the already screeded concrete and the area of newly placed concrete, so as to avoid depressions in the already placed concrete. Optionally, the soft landing control system may include a timing device and may lower the vibrating member after a period of time following an activating event. Optionally, the control system may detect when the vibrating device is positioned at or near the newly placed concrete and may lower the vibrating member in response to such detection.
REFERENCES:
patent: 2796685 (1957-06-01), Bensinger
patent: 3604325 (1971-09-01), Borges
patent: 3870427 (1975-03-01), Allen
patent: RE28400 (1975-04-01), Burgin
patent: 3953145 (1976-04-01), Teach
patent: 4655633 (1987-04-01), Somero et al.
patent: 4759657 (1988-07-01), Dorr et al.
patent: 4807131 (1989-02-01), Clegg
patent: 4930935 (1990-06-01), Quenzi et al.
patent: 4978246 (1990-12-01), Quenzi et al.
patent: 5039249 (1991-08-01), Hansen et al.
patent: 5129803 (1992-07-01), Nomura et al.
patent: 5156487 (1992-10-01), Haid
patent: 5258961 (1993-11-01), Sehr et al.
patent: 5288166 (1994-02-01), Allen et al.
patent: 5288167 (1994-02-01), Gaffard et al.
patent: 5328295 (1994-07-01), Allen
patent: 5352063 (1994-10-01), Allen et al.
patent: 5375663 (1994-12-01), Teach
patent: 5549412 (1996-08-01), Malone
patent: 5567075 (1996-10-01), Allen
patent: 5588776 (1996-12-01), Swisher, Jr. et al.
patent: 5752783 (1998-05-01), Malone
patent: 5771978 (1998-06-01), Davidson et al.
patent: 6129481 (2000-10-01), Tapio et al.
patent: 6152647 (2000-11-01), Tapio et al.
patent: 6183160 (2001-02-01), Tapio et al.
patent: 6227761 (2001-05-01), Kieranen et al.
patent: 6588976 (2003-07-01), Quenzi et al.
patent: 6623208 (2003-09-01), Quenzi et al.
patent: 2003/0068200 (2003-04-01), Quenzi et al.
Anderson Frank E
Kieranen Carl B
Pietila Mark A
Quenzi Philip J
Torvinen Jeffrey W
Hartmann Gary S.
Somero Enterprises, Inc.
Van Dyke Gardner, Linn & Burkhart, LLP
LandOfFree
Apparatus and method for improving the control of a concrete... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for improving the control of a concrete..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for improving the control of a concrete... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3629822