IP Library › Granted Patent US 12,454,443
Granted Patent B2
US 12,454,443 · App. 17/734,016 · Granted Oct 28, 2025

Continuous container crane device

Inventor: Ronald C. Zimmerman (Marvin, NC)
B66C7/08B66C9/04B66C17/20B66C9/14B66C2700/018
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Quick Facts
Patent No.
US 12,454,443
App. No.
17/734,016
Granted
Oct 28, 2025
Kind
B2
Abstract

A continuous container crane device may include a first track having a continuous shape and a second track having a continuous shape. Preferably, the first track may be substantially parallel to the second track. One or more trolleys may be movably coupled to the first track and to the second track so that the trolleys are configured to move in a continuous movement path (starts and finishes at the same place) defined by the first and second track. Each trolley may include a lifting mechanism that may be coupled to a container spreader which may be removably coupled to shipping containers for the transport of shipping containers to and from trucks with a chassis trailer, all types of intermodal railroad flat cars, ships and other water traveling vessels, container storage lots, etc.

Claims (22)

1 . A continuous container crane device, the device comprising:

a first track having a continuous discorectangular shape;

a second track having a continuous discorectangular shape, wherein the first track is substantially parallel and adjacent to the second track; and

a first trolley that is movably coupled to both the first track and to the second track so that the first trolley is configured to move in a continuous movement path while moveably coupled to both the first and second tracks, wherein

the first trolley includes a first lifting mechanism.

2 . The device of claim 1 , wherein the first trolley is movably coupled to the first track via a truck assembly, wherein the truck assembly comprises a first wheel that engages with a first rail to motivate the truck assembly along the first track.

3 . The device of claim 1 , wherein the first trolley is movably coupled to the first track via a truck assembly, wherein the truck assembly comprises at least one pinion that engages with a first rack to motivate the truck assembly along a first connector length, and wherein the at least one pinion engages with a second rack to motivate the truck assembly along a second connector length.

4 . The device of claim 3 , wherein a first connector length comprises the first rack and a third rack, and wherein the truck assembly comprises at least two pinions that are positioned between the first rack and the third rack.

5 . The device of claim 1 , further comprising a second trolley that is movably coupled to both the first track and to the second track so that the second trolley is configured to move in the continuous movement path defined by the first and second track, wherein the second trolley includes a second lifting mechanism and a container spreader.

6 . A continuous container crane device, the device comprising:

a first track having a discorectangular shape, wherein the first track comprises a first lower length, a first upper length, a first connector length, and a second connector length, wherein the first upper length is positioned above the first lower length, wherein the first connector length and second connector length are each coupled to opposing ends of the first lower length and the first upper length;

a second track having a discorectangular shape, wherein the first track is substantially parallel to the second track;

a first trolley that is movably coupled to the first track and to the second track so that the first trolley is configured to move in a vertical stadium shaped movement path defined by the first and second tracks, wherein the first trolley includes a first lifting mechanism and a first container spreader; and

a second trolley that is movably coupled to the first track and to the second track so that the second trolley is configured to move in the vertical stadium shaped movement path defined by the first and second track, wherein the second trolley includes a second lifting mechanism and a second container spreader.

7 . The device of claim 6 , wherein the first lower length comprises a first rail and the first upper length comprises a second rail.

8 . The device of claim 7 , wherein the first trolley is movably coupled to the first track via a truck assembly, wherein the truck assembly comprises a first wheel that engages with the first rail to motivate the truck assembly along the first lower length, and wherein the truck assembly comprises a second wheel that engages with the second rail to motivate the truck assembly along the first upper length.

9 . The device of claim 7 , wherein the first connector length comprises a first rack and the second connector length comprises a second rack.

10 . The device of claim 9 , wherein the first trolley is movably coupled to the first track via a truck assembly, wherein the truck assembly comprises a pinion that engages with the first rack to motivate the truck assembly along the first connector length, and wherein the pinion engages with the second rack to motivate the truck assembly along the second connector length.

11 . The device of claim 10 , wherein the first connector length comprises a first rack and a third rack, and wherein the truck assembly comprises at least two pinions that are positioned between the first rack and the third rack.

12 . The device of claim 10 , wherein the truck assembly comprises a first wheel that engages with the first rail to motivate the truck assembly along the first lower length, and wherein the truck assembly comprises a second wheel that engages with the second rail to motivate the truck assembly along the first upper length.

13 . The device of claim 12 , wherein the first trolley is pivotally coupled to the truck assembly.

14 . The device of claim 6 , wherein the first track is oriented perpendicular to a ground surface, and wherein the second track is oriented perpendicular to a ground surface.

Continuity (1)
Related Publication 20230348236A1 · Nov 2, 2023
References Cited (2)
US 4946328A · Barry · 1990 [cited by applicant]
US 20130213755A1 · Shibata · 2013 [cited by examiner]