Resumes
Resumes
Manager
View pageWork:
Manager
John Destefan Phones & Addresses
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11539 Westminster Dr, Waynesboro, PA 17268 (717) 762-7615
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11537 Westminster Dr, Waynesboro, PA 17268
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Reynoldsville, PA
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Rouzerville, PA
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Mont Alto, PA
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Hagerstown, MD
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11539 Westminster Dr, Waynesboro, PA 17268 (717) 572-9008
Work
Position:
Manager
Education
Degree:
Bachelor's degree or higher
Manager
Publications
Us Patents
Collapsible Tower Boom Lift
View pageUS Patent:
47750294, Oct 4, 1988
Filed:
Oct 8, 1987
Appl. No.:
7/105747
Inventors:
Wayne P. MacDonald - McConnellsburg PA
John F. DeStefan - Waynesboro PA
John F. DeStefan - Waynesboro PA
Assignee:
JLG Industries, Inc. - McConnellsburg PA
International Classification:
B66F 1104
US Classification:
182 2
Abstract:
A collapsible boom lift comprised of upper and lower telescoping boom assemblies. The upper boom is pivotally connected to an upright support member which is pivotally connected at its lower end to the lower boom. The upright support member is maintained plumb during raising and lowering of the lower boom, and the operator's platform, carried at the end of the upper boom, is maintained level during raising and lowering the upper boom. The upright support member is always positioned within the perimeter of the chassis of the boom lift.