Dock leveler having an inflatable member

Bridges – Gangway – ramp – or dock leveler – Attached

Reexamination Certificate

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Reexamination Certificate

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06910239

ABSTRACT:
A dock leveler for use in a loading dock. The dock leveler includes a ramp, an inflatable assembly, and a support structure. The ramp pivots between a generally horizontal lowered position and an upwardly-inclined raised position. The inflatable assembly is positioned under the ramp and adapted to generate a force. The support structure is positioned between the inflatable assembly and the ramp and adapted to transfer the force of the inflatable assembly to the bottom of the ramp to move the ramp from the lowered position to the raised position. A conduit fluidly connects to the inflatable assembly through the support structure.

REFERENCES:
patent: 2070960 (1937-02-01), Philips
patent: 2495092 (1950-01-01), Cox et al.
patent: 2610824 (1952-09-01), Grier
patent: 2689956 (1954-09-01), Fenton
patent: 2804114 (1957-08-01), Bayerkohler
patent: 2846703 (1958-08-01), Adley
patent: 3012804 (1961-12-01), Jeavons
patent: 3117332 (1964-01-01), Kelley et al.
patent: 3211425 (1965-10-01), Greulich et al.
patent: 3379411 (1968-04-01), Vanderjagt
patent: 3521861 (1970-07-01), Freudenthal et al.
patent: 3528118 (1970-09-01), Smith
patent: 3628487 (1971-12-01), Bennett
patent: 3659899 (1972-05-01), Phillips et al.
patent: 3685077 (1972-08-01), Wiener et al.
patent: 3711157 (1973-01-01), Smock
patent: 3763514 (1973-10-01), Bishop
patent: 3784255 (1974-01-01), Smock
patent: 3799504 (1974-03-01), Vaughen
patent: 3835497 (1974-09-01), Smith
patent: 3977349 (1976-08-01), Hummel
patent: 3997932 (1976-12-01), Artzberger
patent: 4012804 (1977-03-01), Catlett
patent: 4036472 (1977-07-01), Orndorff, Jr.
patent: 4060170 (1977-11-01), Walters
patent: 4061310 (1977-12-01), Vetter
patent: 4081874 (1978-04-01), Artzberger
patent: 4110860 (1978-09-01), Neff et al.
patent: 4149469 (1979-04-01), Bigler
patent: 4169296 (1979-10-01), Wipkink et al.
patent: 4257136 (1981-03-01), Loblock
patent: 4293969 (1981-10-01), Frommelt
patent: 4319666 (1982-03-01), Hunter
patent: 4343058 (1982-08-01), Loblick
patent: 4455703 (1984-06-01), Fromme et al.
patent: 4538311 (1985-09-01), Hall et al.
patent: 4570277 (1986-02-01), Hahn et al.
patent: 4572579 (1986-02-01), Saito
patent: 4619008 (1986-10-01), Kovach et al.
patent: 4629162 (1986-12-01), Porche
patent: 4665579 (1987-05-01), Bennett et al.
patent: 4688760 (1987-08-01), Garman et al.
patent: 4735457 (1988-04-01), Bonerb et al.
patent: 4776052 (1988-10-01), Delgado et al.
patent: 4782542 (1988-11-01), Sato
patent: 4786032 (1988-11-01), Garman et al.
patent: 4861215 (1989-08-01), Bonerb
patent: 4922568 (1990-05-01), Hageman
patent: 4937906 (1990-07-01), Alexander
patent: 4948107 (1990-08-01), Orndorff, Jr.
patent: 4955923 (1990-09-01), Hageman
patent: 5042103 (1991-08-01), Megens
patent: 5067774 (1991-11-01), Trowland
patent: 5088143 (1992-02-01), Alexander
patent: 5178367 (1993-01-01), Vaughen
patent: 5232202 (1993-08-01), Watson
patent: 5299386 (1994-04-01), Naegelli et al.
patent: 5414886 (1995-05-01), Sust et al.
patent: 5446938 (1995-09-01), Warner et al.
patent: 5450643 (1995-09-01), Warner
patent: 5471693 (1995-12-01), Hodges
patent: 5475888 (1995-12-01), Massey
patent: 5481774 (1996-01-01), Hodges et al.
patent: 5500968 (1996-03-01), Hodges
patent: 5522107 (1996-06-01), Hageman et al.
patent: 5522108 (1996-06-01), Massey et al.
patent: 5600859 (1997-02-01), Hodges et al.
patent: 5669086 (1997-09-01), German
patent: 5802650 (1998-09-01), Massey
patent: 5802651 (1998-09-01), Massey et al.
patent: 5996156 (1999-12-01), Massey
patent: 6216303 (2001-04-01), Massey
patent: 165168 (1949-06-01), None
patent: 1 207 221 (1965-12-01), None
patent: 2354388 (1974-03-01), None
patent: 27 21 384 (1978-11-01), None
patent: 37 43 551 (1989-07-01), None
patent: 0 001 316 (1979-04-01), None
patent: 0 386 850 (1990-12-01), None
patent: 835 142 (1960-05-01), None
patent: 930163 (1963-07-01), None
patent: 2 145 041 (1985-03-01), None
patent: 2 206 158 (1988-12-01), None
patent: 7710543 (1979-03-01), None
patent: 161243 (1964-07-01), None
patent: 931701 (1982-05-01), None
patent: 1362826 (1987-12-01), None
patent: WO 9011204 (1990-10-01), None
patent: WO 93/13267 (1993-07-01), None
Rite-Hite Semi-Automatic Dock Leveler, Specifications and Pit Details—2 pages.

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