Traversing hoists – Overhead – Self-propelled trolley
Reexamination Certificate
2005-12-13
2005-12-13
Brahan, Thomas J. (Department: 3652)
Traversing hoists
Overhead
Self-propelled trolley
C212S284000, C254S270000, C701S216000
Reexamination Certificate
active
06974044
ABSTRACT:
The invention relates to a system for controlling a load lifting device (1) with a controllable drive (2) and a lifting element (5) which is linked with the drive (2) and which is—at least in a non-operational position due to the gravitational force—vertically (Z—Z) aligned. A load receiving element (7) is linked with the lifting element (5). The system further comprises a control circuit for balancing the loads. Said control circuit encompasses a device for producing a path-dependent signal which corresponds to a substantially vertical (Z—Z) movement of the lifting element (5) and which represents the input signal for the control of the drive (2).
REFERENCES:
patent: 3841605 (1974-10-01), Joraku et al.
patent: 3887855 (1975-06-01), Klimo
patent: 3945612 (1976-03-01), Motoda
patent: 4087078 (1978-05-01), Joraku et al.
patent: 4807767 (1989-02-01), Kornely
patent: 5522581 (1996-06-01), Kulhavy
patent: 5850928 (1998-12-01), Kahlmann et al.
patent: 5865426 (1999-02-01), Kazerooni
patent: 5960969 (1999-10-01), Habisohn
patent: 6394731 (2002-05-01), Konosu et al.
patent: 4415518 (1995-11-01), None
patent: 29719865 (1998-03-01), None
patent: 0733579 (1996-09-01), None
Brahan Thomas J.
Merchant & Gould
LandOfFree
System and device for controlling a load lifting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and device for controlling a load lifting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and device for controlling a load lifting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3500650