Low-construction trolley for wire rope hoist
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 30, 2021
Grant Date -
Feb 2, 2017
app pub date -
Jan 23, 2015
filing date -
Jan 24, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A low-construction trolley for a wire rope hoist is arranged to travel along a lower flange of a horizontal rail, on both longitudinal edges thereof. The trolley includes a trolley frame; bearing wheels that are attached to the trolley frame and arranged to travel on an upper surface of the lower flange of the rail; a hoisting mechanism including a rope drum for a hoisting rope, a hoisting member in cooperation with the hoisting rope for hoisting a load, a hoisting motor for driving the rope drum, and a gear to interconnect the hoisting motor and the rope drum; whereby the rope drum is supported to one side of the trolley frame and the hoisting member is arranged to travel under the rail in a vertical plane (A) passing substantially through the middle of the beam. For balancing the trolley without using a counterweight, the hoisting motor is placed under the rail and at least partly on a different side than the rope drum in relation to a vertical plane (B) passing through contact lines of the bearing wheels that touch the lower flange of the rail on the rope drum side.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- B66D Class
- 143 Applications Filed
- 109 Patents Issued To-Date
- 76.23 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- B66D Class
- 55.24 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 30, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 30, 2032 |
