Loading dock with vertically movable side pads

Details Loading dock with vertically movable side pads Loading dock with vertically movable side pads

2005-02-15

2005-02-15

Safavi, Michael (Department: 3673)

Static structures (e.g., buildings)

Combined

With a loading dock seal

Reexamination Certificate

active

06854224

ABSTRACT:
A loading dock seal for around a doorway of a building includes a vertically movable side seal and a relatively fixed head seal that are adapted to seal against the rear of a truck. As the truck is loaded or unloaded of its cargo, the resulting weight change on the truck's suspension can cause the truck to raise and lower a few inches. To minimize the truck abrading the side seal, a movable coupling allows the side seal to move with the truck's vertical movement. In some embodiments, the coupling includes antifriction elements, such as rollers and bearing pads, which smoothen the motion of the side seal. Although the head seal is relatively fixed to ensure a positive seal against the face of the building, the head seal is designed to readily deform in response to the truck's vertical movement.

REFERENCES:
patent: 688595 (1901-12-01), Coe
patent: 1008491 (1911-11-01), Pruden
patent: 2565393 (1951-08-01), Oswald
patent: 2627912 (1953-02-01), Soppeland
patent: 2704574 (1955-03-01), Etlar
patent: 2764236 (1956-09-01), Dye
patent: 2892463 (1959-06-01), Frommelt et al.
patent: 3095886 (1963-07-01), Frommelt et al.
patent: 3181205 (1965-05-01), Frommelt et al.
patent: 3195953 (1965-07-01), Zacks
patent: 3203002 (1965-08-01), McGuire
patent: 3216433 (1965-11-01), D'Azzo
patent: 3230675 (1966-01-01), Frommelt et al.
patent: 3352314 (1967-11-01), Frommelt et al.
patent: 3375625 (1968-04-01), Edkins et al.
patent: 3391503 (1968-07-01), O'Neal
patent: 3403489 (1968-10-01), Frommelt et al.
patent: 3440673 (1969-04-01), Kelley
patent: 3493984 (1970-02-01), Reinhard
patent: 3500599 (1970-03-01), Sciolino
patent: 3538655 (1970-11-01), Frommelt et al.
patent: 3557508 (1971-01-01), Frommelt et al.
patent: 3570033 (1971-03-01), Hovestad et al.
patent: 3613324 (1971-10-01), Conger
patent: 3638667 (1972-02-01), Frommelt et al.
patent: 3644952 (1972-02-01), Hatch
patent: 3653155 (1972-04-01), de Brunyn, Jr. et al.
patent: 3653173 (1972-04-01), Frommelt et al.
patent: 3665997 (1972-05-01), Smith et al.
patent: 3699733 (1972-10-01), Frommelt et al.
patent: 3792559 (1974-02-01), Frommelt et al.
patent: 3826049 (1974-07-01), Frommelt et al.
patent: 3840930 (1974-10-01), Wanddell
patent: RE28391 (1975-04-01), Frommelt et al.
patent: 3875954 (1975-04-01), Frommelt et al.
patent: 3915183 (1975-10-01), Frommelt
patent: 3934380 (1976-01-01), Frommelt et al.
patent: 3935684 (1976-02-01), Frommelt et al.
patent: 3939614 (1976-02-01), Frommelt et al.
patent: 3994103 (1976-11-01), Ouellet
patent: 4015380 (1977-04-01), Chalfant
patent: 4062157 (1977-12-01), Potthoff
patent: 4213279 (1980-07-01), Layne
patent: 4262458 (1981-04-01), O'Neal
patent: 4381631 (1983-05-01), Frommelt
patent: 4420849 (1983-12-01), Alten
patent: 4494341 (1985-01-01), Schwab
patent: 4554768 (1985-11-01), Srajer
patent: 4571903 (1986-02-01), Strassner
patent: 4574542 (1986-03-01), Kleynjans
patent: 4601142 (1986-07-01), Frommelt
patent: 4638612 (1987-01-01), Bennett
patent: 4679364 (1987-07-01), Fettig et al.
patent: 4682382 (1987-07-01), Bennett
patent: 4686806 (1987-08-01), Bennett
patent: 4711059 (1987-12-01), Layne
patent: 4718207 (1988-01-01), Frommelt
patent: 4724648 (1988-02-01), Diepholder
patent: 4744121 (1988-05-01), Swessel et al.
patent: 4750299 (1988-06-01), Frommelt et al.
patent: 4799341 (1989-01-01), Frommelt et al.
patent: 4799342 (1989-01-01), Klevnjans
patent: 4805362 (1989-02-01), Frommelt et al.
patent: 4821468 (1989-04-01), Moore
patent: 4825607 (1989-05-01), Frommelt et al.
patent: 4873800 (1989-10-01), Frommelt et al.
patent: 4873801 (1989-10-01), Winters
patent: 4877288 (1989-10-01), Lee
patent: 5007211 (1991-04-01), Ouellet
patent: 5055335 (1991-10-01), Wicks
patent: 5125196 (1992-06-01), Moody
patent: 5185977 (1993-02-01), Brockman et al.
patent: 5195285 (1993-03-01), Alten
patent: 5282342 (1994-02-01), Brockman et al.
patent: 5450643 (1995-09-01), Warner
patent: 5452489 (1995-09-01), Gelder et al.
patent: 5473846 (1995-12-01), Giuliani et al.
patent: 5501508 (1996-03-01), Llewellyn
patent: 5538323 (1996-07-01), Henkel
patent: 5622016 (1997-04-01), Frommelt et al.
patent: 5644812 (1997-07-01), Neufeldt et al.
patent: 5651155 (1997-07-01), Hodges et al.
patent: 5658633 (1997-08-01), Di Biase
patent: 5669665 (1997-09-01), Nowak
patent: 5675945 (1997-10-01), Giuliani et al.
patent: 5775044 (1998-07-01), Styba et al.
patent: 5881414 (1999-03-01), Alexander
patent: 5953868 (1999-09-01), Giuliani et al.
patent: 5996291 (1999-12-01), Styba et al.
patent: 6006389 (1999-12-01), Alexander
patent: 6070283 (2000-06-01), Hahn
patent: 6205721 (2001-03-01), Ashelin et al.
patent: 6233885 (2001-05-01), Hoffmann et al.
patent: 6360394 (2002-03-01), Hahn
patent: 600117 (1978-06-01), None
patent: 685117 (1995-03-01), None
patent: 24 36 518 (1975-08-01), None
patent: 28 00 128 (1979-07-01), None
patent: 31 30 657 (1983-02-01), None
patent: 296 00 207 (1996-04-01), None
patent: 196 12 135 (1997-10-01), None
patent: 297 16 877 (1998-02-01), None
patent: 298 04 117 (1998-06-01), None
patent: 0 040 388 (1981-11-01), None
patent: 0 205 648 (1986-12-01), None
patent: 0 379 634 (1990-08-01), None
patent: 0 602 501 (1994-06-01), None
patent: 0 641 731 (1995-03-01), None
patent: 2 686 913 (1993-08-01), None
patent: 4194 (1907-01-01), None
patent: 1161537 (1969-08-01), None
patent: WO 0270382 (2002-09-01), None
Blueprine No. D802-0176;Rain Diverter Curtain; Rite-Hite Model No. WG402, dated Jul. 1, 1992.
Blueprint Nos. 692-0125 and 692-0126;VHL Bottom Pads and VHL Bottom Pads Detail; Frommelt Industries, Inc. dated Oct. 7, 1988.
Drawing No. 692-0029;Adjustable Bottom Pad; Frommelt Industries, Inc. dated Oct. 17, 1985; one page.
Drawing No. A204-0029 for “C-Curtain—Split Corners”, Rite-Hite C-Curtain, dated May 27, 1994.
“Dock Seal”, Installation Instructions, Kinnear—Division of Harsco Corp., 4 pages (1978).
“Super Seal Dock Seals” catalog 11160/SU; Super Seal Mfg. Ltd.; no date listed, but stamped rec'd by USPTO on Aug. 29, 1989.

Affiliated with

Also associated with

Rating

Loading dock with vertically movable side pads does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Loading dock with vertically movable side pads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loading dock with vertically movable side pads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3487872