JON E FLEAGLE
Engineers in Roadside, PA

6631817, Oct 14, 2003

Sep 20, 2000

09/666599

Jon E. Fleagle - Waynesboro PA
Kurt W. Richter - Shippensburg PA

Grove U.S. LLC - Shady Grove PA

B66C 2378

212301, 212302

A mobile crane includes a chassis having first connection features located on a rear end thereof. An outrigger includes second connection features for mating with the first connection features. A tag axle assembly includes third connection features for mating with the first connection features. The first connection features may accept either the second connection features or the third connection features, so that the mobile crane may be selectively configured for highway travel and selectively configured for working operation. One or more axles of the mobile crane may be elevated when the tag axle assembly is connected to the first connection feature. Further, a wheeled boom dolly may be employed to share weight with the chassis when the mobile crane is travelling. By allowing the outrigger to be replaced with the tag axle assembly, the present invention allows the mobile crane to be conveniently configured for road travel in a manner suitable to the axle spacing and axle weight restrictions of the local area.

6343703, Feb 5, 2002

Dec 4, 1998

09/205298

Jon E. Fleagle - Waynesboro PA
Dennis W. Eckstine - Waynesboro PA
William W. Banks - New Market MD
Francis R. Eyler - Hanover PA

Grove U.S. L.L.C. - Shady Grove PA

B66C 2390

212281, 212276, 212284

In the anti-two block device, a non-contact measuring device detects in one form or another the distance between a boom nose and a load-bearing member supported thereby. If the distance detected is less than a predetermined threshold value, the device triggers a warning or other operation to assist an operator in preventing anti-two blocking.

6050430, Apr 18, 2000

Oct 30, 1998

9/182464

Jon Fleagle - Waynesboro PA
David Young - Wilmington NC

Grove U.S. L.L.C. - Shady Grove PA

B66C 2334

212278

The automatic leveling and synchronization system for raising and lowering a counterweight includes at least a primary and secondary cylinder connected in series hydraulic communication. The primary cylinder includes a first rod connected to a first piston, and the first rod is attached to one end of a counterweight. The secondary cylinder includes a second rod connected to a second piston, and the second rod is attached to another end of the counterweight. A surface area of a bottom of the second piston is set equal to a surface area of a top of the first piston.