Charles R Wernecke

US Patent:

6481202, Nov 19, 2002

Filed:

Oct 19, 1998

Appl. No.:

09/175065

Inventors:

Arthur G. Zuehlke - Manitowoc WI
Charles R. Wernecke - Manitowoc WI
David J. Pech - Manitowoc WI

Assignee:

Manitowoc Crane Companies, Inc. - Reno NV

International Classification:

F16D 3102

US Classification:

60464, 60475, 91461, 212299

Abstract:

A crane having an upper works rotatably mounted on a lower works and a boom pivotally mounted on the upper works includes a hydraulic boom hoist cylinder and a hydraulic circuit for controlling the hydraulic boom hoist cylinder. The hydraulic cylinder is pivotally connected to a mast on the upper works and pendently connected to the boom. The boom hoist cylinder preferably comprises two double-acting hydraulic cylinders. The hydraulic circuit includes a closed loop pump and a hydraulic controller connecting the closed loop pump and the double-acting cylinders such that fluid from the pump can be directed either to extend or retract the cylinders, with the hydraulic fluid exiting the cylinders being directed to return to the pump.

US Patent:

20030024242, Feb 6, 2003

Filed:

Sep 24, 2002

Appl. No.:

10/254740

Inventors:

Arthur Zuehlke - Manitowoc WI, US
Charles Wernecke - Manitowoc WI, US
David Pech - Manitowoc WI, US

Assignee:

MANITOWOC CRANE COMPANIES, INC.

International Classification:

F16D039/00

US Classification:

060/489000

Abstract:

A crane having an upper works rotatably mounted on a lower works and a boom pivotally mounted on the upper works includes a hydraulic boom hoist cylinder and a hydraulic circuit for controlling the hydraulic boom hoist cylinder. The hydraulic cylinder is pivotally connected to a mast on the upper works and pendently connected to the boom. The boom hoist cylinder preferably comprises two double-acting hydraulic cylinders. The hydraulic circuit includes a closed loop pump and a hydraulic controller connecting the closed loop pump and the double-acting cylinders such that fluid from the pump can be directed either to extend or retract the cylinders, with the hydraulic fluid exiting the cylinders being directed to return to the pump.

US Patent:

20100294736, Nov 25, 2010

Filed:

May 17, 2010

Appl. No.:

12/781339

Inventors:

Charles R. Wernecke - Manitowoc WI, US
Timothy J. Albinger - Manitowoc WI, US

International Classification:

B66C 23/92

US Classification:

212293

Abstract:

A compressible stop member for use on a crane includes: a housing having a first sealed end, a second end, a first cylindrical surface and a second cylindrical surface; a free piston slidably contained within the housing in a sealing engagement with the first cylindrical surface; a compressed gas chamber in the housing between the free piston and the first sealed end; and a rod comprising a cylindrical portion with a diameter less than the diameter of the second cylindrical surface and a rod support portion that separates a first liquid chamber comprising the volume inside the housing between the free piston and the rod support portion from a second liquid chamber comprising the volume between the rod support portion and the second end of the housing. Also, the rod support portion includes at least one flow channel allowing liquid to flow between the first and second liquid chambers.

US Patent:

60624051, May 16, 2000

Filed:

Apr 25, 1997

Appl. No.:

8/842974

Inventors:

David J. Pech - Manitowoc WI
Charles R. Wernecke - Manitowoc WI

Assignee:

Manitowoc Crane Group, Inc. - Reno NV

International Classification:

B66C 2332

US Classification:

212298

Abstract:

A crane having an upper works rotatably mounted on a lower works, a boom pivotally mounted on the upper works, and a hydraulic boom hoist cylinder to control the angle of the boom. The crane further comprises a mast and a hydraulic cylinder pivotally connected to the upper works. The connection of the mast to the upper works is at a location separate from, and at an elevation below, the elevation of the connection of the hydraulic cylinder to the upper works. The hydraulic cylinder is pivotally connected to the mast and pendently connected to the boom.

US Patent:

51489295, Sep 22, 1992

Filed:

Sep 20, 1991

Appl. No.:

7/762771

Inventors:

Charles R. Wernecke - Manitowoc WI
Marlin P. Strouf - Two Rivers WI

Assignee:

The Manitowoc Company Inc. - Manitowoc WI

International Classification:

B66C 2362

US Classification:

212180

Abstract:

A multi-coupling device for connecting multiple hydraulic lines between first and second portions of a crane is disclosed. The device is for use where the crane portions are not aligned with a tolerance as small as that necessary for connecting the hydraulic line couplings. The multi-coupling device comprises a first plate rigidly holding the first part of each of the couplings in a spaced relationship, the first plate being rigidly fixed to a first crane portion; a second plate rigidly holding the second part of each of the couplings in a spaced relation corresponding to the spaced relation of the first coupling parts; a mounting device which mounts the second plate on a second crane portion with a freedom of movement at least as great as the tolerance in alignment between the first and second crane portions; and alignment means for aligning the first and second plates.

US Patent:

61585351, Dec 12, 2000

Filed:

Apr 1, 1997

Appl. No.:

8/834673

Inventors:

Kenneth J. Porubcansky - Whitelaw WI
Charles R. Wernecke - Manitowoc WI

Assignee:

Manitowoc Crane Group, Inc. - Reno NV

International Classification:

B62D 5506

US Classification:

180 91

Abstract:

An apparatus for powering the crawlers of a crawler vehicle. The apparatus comprises one or more hydraulic drive motors mounted on the vehicle, car body, a track drive gear box mounted on the crawler, and one or more mechanical drive shafts connected between the hydraulic drive motors and the track drive gear box to transmit power from the drive motors to the track drive gear box. The mechanical drive shafts are disconnectable from between the hydraulic drive motors and the track, drive gear box so as to permit the disassembly and removal of the crawlers from the car body.

US Patent:

20210009386, Jan 14, 2021

Filed:

Apr 10, 2020

Appl. No.:

16/845837

Inventors:

- Manitowoc WI, US
Joseph R. Rucinski - Manitowoc WI, US
Joel D. Zick - Manitowoc WI, US
Bronson E. Foust - Manitowoc WI, US
Charles E. Wernecke - Manitowoc WI, US

Assignee:

Manitowoc Crane Companies, LLC - Manitowoc WI

International Classification:

B66C 23/76

Abstract:

A lift crane includes a carbody and movable ground engaging members mounted on the carbody. A rotating bed is rotatably connected to the carbody and includes a counterweight support frame including a rack coupled directly to a lower surface of the rotating bed. A boom is pivotally mounted to the rotating bed. A counterweight unit includes a trolley, the counterweight unit being in a movable relationship with respect to the rotating bed. A counterweight unit movement device is configured to move the counterweight unit toward and away from the boom. Other embodiments include a counterweight support beam movably connected to the rotating bed, the counterweight support beam including another rack coupled to a lower surface of the counterweight support beam. A counterweight support beam movement device is connected between the counterweight support beam and the counterweight support frame.

US Patent:

20190177134, Jun 13, 2019

Filed:

Dec 28, 2018

Appl. No.:

16/235029

Inventors:

- Manitowoc WI, US
Joseph R. Rucinski - Manitowoc WI, US
Joel D. Zick - Manitowoc WI, US
Bronson E. Foust - Manitowoc WI, US
Charles E. Wernecke - Manitowoc WI, US

Assignee:

MANITOWOC CRANE COMPANIES, LLC - Manitowoc WI

International Classification:

B66C 23/76
B66C 9/00
B66C 23/36

Abstract:

A lift crane includes a carbody and movable ground engaging members mounted on the carbody. A rotating bed is rotatably connected to the carbody and includes a counterweight support frame including a rack coupled directly to a lower surface of the rotating bed. A boom is pivotally mounted to the rotating bed. A counterweight unit includes a trolley, the counterweight unit being in a movable relationship with respect to the rotating bed. A counterweight unit movement device is configured to move the counterweight unit toward and away from the boom. Other embodiments include a counterweight support beam movably connected to the rotating bed, the counterweight support beam including another rack coupled to a lower surface of the counterweight support beam. A counterweight support beam movement device is connected between the counterweight support beam and the counterweight support frame.