Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-02-17
2008-11-18
La, Anh V (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S005700, C340S551000, C104S172300, C186S058000, C194S905000
Reexamination Certificate
active
07453358
ABSTRACT:
A shopping cart conveyor that inhibits the loading of a non-compliant shopping cart onto the conveyor. In one aspect, the invention provides a conveyor comprising a track operable to guide the shopping cart between a first location and a second location, a gate assembly including a door movable between a closed position inhibiting entry to the track and an open position allowing entry to the track, a lock for securing the door in the closed position, and a sensor (e.g., an ultrasonic sensor, an optical sensor, a radar sensor, an infrared sensor, an RFID reader, a magnetic sensor, and a mechanical sensor) positioned to detect the presence of a shopping cart. In another aspect, the conveyor is configured to move the gate from the closed position to the open position when the sensor detects the presence of a shopping cart. Preferably this is done using a drive mechanism coupled to the gate.
REFERENCES:
patent: 2109210 (1938-02-01), Dunlop
patent: 2802427 (1957-08-01), Costa
patent: 2965049 (1960-12-01), Royer
patent: 3305064 (1967-02-01), Mullis et al.
patent: 3318432 (1967-05-01), Mullis et al.
patent: 3395784 (1968-08-01), Kanarek
patent: 3446315 (1969-05-01), Close
patent: 3580376 (1971-05-01), Loshbough
patent: 3655013 (1972-04-01), Weller
patent: 3656636 (1972-04-01), Konstantin
patent: 3832953 (1974-09-01), Aaron
patent: 3837289 (1974-09-01), Marshman et al.
patent: 3861514 (1975-01-01), Ling
patent: 3947832 (1976-03-01), Rosgen et al.
patent: 4206708 (1980-06-01), Behle
patent: 4235327 (1980-11-01), Heusler et al.
patent: 4326622 (1982-04-01), Ellzey
patent: 4424893 (1984-01-01), Gillet
patent: 4438830 (1984-03-01), Born
patent: 4518072 (1985-05-01), Muellner et al.
patent: 4681207 (1987-07-01), Goto et al.
patent: 5476156 (1995-12-01), Gerber
patent: 5529163 (1996-06-01), Decker et al.
patent: 5572930 (1996-11-01), Hein
patent: 5785165 (1998-07-01), Stahlhut et al.
patent: 5923005 (1999-07-01), Blondiau et al.
patent: 5996767 (1999-12-01), Misawa
patent: 6138815 (2000-10-01), Reiners et al.
patent: 6334522 (2002-01-01), Haruta et al.
patent: 6490979 (2002-12-01), Pfleger et al.
patent: 6644210 (2003-11-01), Pfleger et al.
patent: 2006/0011220 (2006-01-01), Mueller
patent: 2006/0107486 (2006-05-01), Andre
patent: 403224 (1965-11-01), None
patent: 1249765 (1967-09-01), None
patent: 2456791 (1976-08-01), None
patent: 2916818 (1980-11-01), None
patent: 0012149 (1979-04-01), None
La Anh V
Michael Best & Friedrich LLC
Pflow Industries Inc.
LandOfFree
Shopping cart conveyor with gated access does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shopping cart conveyor with gated access, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shopping cart conveyor with gated access will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4026352