Bridges – Gangway – ramp – or dock leveler
Patent
1993-09-21
1995-10-17
Britts, Ramon S.
Bridges
Gangway, ramp, or dock leveler
14 713, 14 711, 340540, 414401, E01D 100
Patent
active
054578388
ABSTRACT:
A dock leveler for providing a bridge into the rear end of a truck trailer over which a fork vehicle can travel in loading the truck trailer. The dock leveler includes a ramp with a rear section and an extendible forward section. The forward section telescopically extends from and retracts into the rear section under power from a hydraulic cylinder. The forward section can be locked in place to prevent retraction of said forward section relative to said rear section under the traction developed by the drive wheels of a fork vehicle as the fork vehicle travels over the dock leveler. Various structures for indicating the amount of overlap of the dock leveler on the truck trailer are also provided.
REFERENCES:
patent: 1967620 (1934-07-01), Kahn
patent: 2639450 (1953-05-01), Ramer
patent: 2689965 (1954-09-01), Fenton
patent: 2881457 (1959-04-01), Rodgers
patent: 2881458 (1959-04-01), Rodgers
patent: 2993219 (1961-07-01), Pennington
patent: 3006008 (1961-10-01), Loomis et al.
patent: 3167796 (1965-02-01), Layne
patent: 3175238 (1965-03-01), Pennington
patent: 3179968 (1965-04-01), Lambert
patent: 3235895 (1966-02-01), Wallace et al.
patent: 3268932 (1966-08-01), Hartman
patent: 3280414 (1966-10-01), Layne
patent: 3424323 (1969-01-01), Barnaby
patent: 3475779 (1969-11-01), Johnson
patent: 3486181 (1969-12-01), Hecker, Jr. et al.
patent: 3533118 (1970-10-01), Rosengen
patent: 3786530 (1974-01-01), Le Clear
patent: 3872948 (1975-03-01), Richards
patent: 4127856 (1978-11-01), Bickel
patent: 4146888 (1979-03-01), Grunewald et al.
patent: 4155468 (1979-05-01), Royce
patent: 4191503 (1980-03-01), Neff et al.
patent: 4207019 (1980-06-01), Cone
patent: 4208161 (1980-06-01), Hipp et al.
patent: 4224709 (1980-09-01), Alten
patent: 4264259 (1981-04-01), Hipp
patent: 4267748 (1981-05-01), Grunewald et al.
patent: 4282621 (1981-08-01), Anthony et al.
patent: 4304518 (1981-12-01), Carder et al.
patent: 4342525 (1982-08-01), Mastronuzzi, Jr.
patent: 4364137 (1982-12-01), Hahn
patent: 4373847 (1983-02-01), Hipp et al.
patent: 4379354 (1983-04-01), Hahn et al.
patent: 4443150 (1984-04-01), Hahn et al.
patent: 4472099 (1984-09-01), Hahn et al.
patent: 4488325 (1984-12-01), Bennett et al.
patent: 4501042 (1985-02-01), DiFonzo
patent: 4551877 (1985-11-01), Allen
patent: 4553895 (1985-11-01), Ellis
patent: 4555211 (1985-11-01), Metz
patent: 4560315 (1985-12-01), Hahn
patent: 4589813 (1986-05-01), Hagen et al.
patent: 4601502 (1986-07-01), Van Dyke
patent: 4605353 (1986-08-01), Hahn et al.
patent: 4630989 (1986-12-01), Davey
patent: 4634334 (1987-01-01), Hahn et al.
patent: 4674941 (1987-06-01), Hagemann
patent: 4692755 (1987-09-01), Hahn
patent: 4695216 (1987-09-01), Eriandsson
patent: 4728242 (1988-03-01), Eriandsson
patent: 4735542 (1988-04-01), Fisher et al.
patent: 4744121 (1988-05-01), Swessel et al.
patent: 4759678 (1988-07-01), Hageman
patent: 4767254 (1988-08-01), Kovach et al.
patent: 4815918 (1989-03-01), Bennett et al.
patent: 4819770 (1989-04-01), Hahn
patent: 4830563 (1989-05-01), Yeakle
patent: 4843373 (1989-06-01), Trickle et al.
patent: 4848732 (1989-07-01), Rossato
patent: 4861217 (1989-08-01), Eriandsson
patent: 4865507 (1989-09-01), Trickle
patent: 4865508 (1989-09-01), Carlson
patent: 4920598 (1990-05-01), Hahn
patent: 4938647 (1990-07-01), Eriandsson
patent: 4969792 (1990-11-01), Ellis et al.
patent: 4973213 (1990-11-01), Eriandsson
patent: 4988254 (1991-01-01), Alexander
patent: 4995130 (1991-02-01), Hahn et al.
patent: 5026242 (1993-06-01), Alexander
patent: 5040258 (1991-08-01), Hahn et al.
patent: 5047748 (1991-09-01), Trickle
patent: 5071306 (1991-12-01), Alexander
patent: 5096359 (1992-03-01), Alexander
patent: 5120181 (1992-06-01), Alexander
patent: 5212864 (1993-05-01), Hahn
Rite-Hite "HD-3000 Safe-T-Lip Leveler" brochure.
Gelder Kenneth
Palmersheim Gerard M.
Britts Ramon S.
O'Connor Pamela A.
Systems, Inc.
LandOfFree
Extendible dock leveler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extendible dock leveler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extendible dock leveler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-588511