Supports: racks – With trackway
Reexamination Certificate
2006-04-25
2006-04-25
Redman, Jerry (Department: 3634)
Supports: racks
With trackway
C211S001510, C211S001520
Reexamination Certificate
active
07032762
ABSTRACT:
The invention provides a relatively simple and inexpensive power-assisted movable rack system, movement of which is controlled by an operator. The movable rack system comprises a plurality of movable racks, each of which includes a plurality of wheels, a DC motor turning forward or backward and reciprocating the movable rack, a pair of direction switches provided at opposite positions in moving directions of the movable rack, and an actuating circuit rotating the DC motor in one direction during the operation of one of the direction switches and rotating the DC motor in an opposite direction during the operation of the other direction switch. The DC motor applies dynamic braking force, so that movable racks can be stopped with a short braking distance.
REFERENCES:
patent: 3168361 (1965-02-01), Naito et al.
patent: 3566802 (1971-03-01), Lundgvist
patent: 3575298 (1971-04-01), Ruoss
patent: 3597034 (1971-08-01), Wetzler
patent: 3640595 (1972-02-01), Staller et al.
patent: 3890903 (1975-06-01), Showell
patent: 3957323 (1976-05-01), Tucker et al.
patent: 4017131 (1977-04-01), Camenisch
patent: 4033649 (1977-07-01), Naito et al.
patent: 4039040 (1977-08-01), Spears et al.
patent: 4307922 (1981-12-01), Rhodes, Jr.
patent: 4412772 (1983-11-01), Naito et al.
patent: 4437711 (1984-03-01), Dahnert
patent: 4441617 (1984-04-01), Forsberg
patent: 4643418 (1987-02-01), Bart
patent: 4759592 (1988-07-01), Dahnert
patent: 4783618 (1988-11-01), Artrip
patent: 5160190 (1992-11-01), Farrell et al.
patent: 5842585 (1998-12-01), Hollander
patent: 6112917 (2000-09-01), Baker et al.
patent: 6202861 (2001-03-01), Mah
patent: 6845834 (2005-01-01), Hatanaka
patent: 1093640 (1967-12-01), None
patent: 45-12346 (1970-05-01), None
patent: 51-96711 (1976-08-01), None
patent: 55-113415 (1980-09-01), None
patent: 62-26101 (1987-02-01), None
patent: 64-16837 (1989-01-01), None
patent: 10-262748 (1998-10-01), None
patent: 11-99021 (1999-04-01), None
Higashi Toshihiro
Ikenaga Ichiro
Kawano Tomoyuki
Miyazaki Kunio
Tokunaga Kazuya
Kongo Co. Ltd.
Redman Jerry
LandOfFree
Power-assisted movable rack does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power-assisted movable rack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power-assisted movable rack will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3534240