Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Tilts relative to base
Patent
1975-05-27
1977-04-12
Braun, Leslie
Static structures (e.g., buildings)
Mechanism operated relatively movable shaft assembly
Tilts relative to base
52115, 52731, 212 55, 212144, 214141, B66C 2304
Patent
active
040166880
ABSTRACT:
An extensible cantilever boom assembly, for a mobile crane, has telescopically interfitting box-like boom sections, that include web or side plates of uniform thickness. These plates are shaped to provide increased stiffness, and openings are provided within some of the plates to reduce the plate weight, so that the load carrying capacity of the boom is increased. A plurality of shaped portions are formed within the plates, at locations intermediate the top edges and the bottom edges of the plates. These plate portions are spaced laterally from the parallel planes that define the side surfaces of the plates, at the junctures of the side surfaces with the top and bottom edges. The shaped portions, located at longitudinally spaced intervals, are aligned in a row that extends longitudinally of the plate. Each shaped portion has a regular geometrical pattern that forms a laterally projecting protuberance on one side of the plate and a corresponding depression on the opposite side of the plate.
REFERENCES:
patent: 755436 (1904-03-01), Bental
patent: 854947 (1907-05-01), Hill
patent: 1331412 (1920-02-01), Brown
patent: 1472897 (1923-01-01), Anderson
patent: 1552474 (1925-09-01), Dornier
patent: 1579134 (1926-03-01), Nusbaum
patent: 1656871 (1928-01-01), Schnitzer
patent: 1680538 (1928-08-01), Gross
patent: 1761037 (1930-06-01), Gross
patent: 1785025 (1930-12-01), Felsenthal
patent: 1820660 (1931-08-01), Gilbert
patent: 1959756 (1934-05-01), Ferm
patent: 1994716 (1935-03-01), Klemperer
patent: 2039886 (1936-05-01), Cohn
patent: 2170019 (1939-08-01), Gaylord
patent: 2308565 (1943-01-01), Mitchell
patent: 2313897 (1943-03-01), Selberg
patent: 2518251 (1950-08-01), Quayle
patent: 2521351 (1950-09-01), Dimmendaal
patent: 2554930 (1951-05-01), Ulinski
patent: 2632530 (1953-03-01), Wagner
patent: 2632535 (1953-03-01), Clerk
patent: 2666417 (1954-01-01), Harsch
patent: 2684159 (1954-07-01), Oldenkamp
patent: 2701031 (1955-02-01), Brumbaugh
patent: 2788863 (1957-04-01), Ulinski
patent: 2819803 (1958-01-01), Obenchain
patent: 2888300 (1959-05-01), Curtis et al.
patent: 2896750 (1959-07-01), Eitel
patent: 2911111 (1959-11-01), Grove
patent: 2912013 (1959-11-01), Freyholdt et al.
patent: 2934372 (1960-04-01), Jewell et al.
patent: 2949201 (1960-08-01), MacAlpine et al.
patent: 2962133 (1960-11-01), Kivett et al.
patent: 2984373 (1961-05-01), Przybylski
patent: 3002235 (1961-10-01), Fountain
patent: 3077171 (1963-02-01), Gotsch et al.
patent: 3104454 (1963-09-01), Handley et al.
patent: 3154199 (1964-10-01), Balogh et al.
patent: 3184263 (1965-05-01), Plegot
patent: 3243052 (1966-03-29), Grove
patent: 3263386 (1966-08-01), Kimmel
patent: 3270899 (1966-09-01), Brown et al.
patent: 3315821 (1967-04-01), Grove
patent: 3386594 (1968-06-01), Grove
patent: 3396852 (1968-08-01), Balogh
patent: 3398645 (1968-08-01), Nansel
patent: 3423890 (1969-01-01), Leigh
patent: 3425726 (1969-02-01), Muller
patent: 3426917 (1969-02-01), Siegel
patent: 3445004 (1969-05-01), Grider et al.
patent: 3620579 (1971-11-01), Brown et al.
patent: 3690742 (1972-09-01), Sung
patent: 3708937 (1973-01-01), Sterner
patent: 3890757 (1975-06-01), Lamer et al.
Quinn Daniel G.
Tiffin Joseph B.
Vroonland Evart J.
Braun Leslie
Edwards J. W.
FMC Corporation
Tripp C. E.
Verhoeven J. F.
LandOfFree
Extensible crane boom structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extensible crane boom structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extensible crane boom structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1274084