US3500599A - Closure device - Google Patents

Closure device Download PDF

Info

Publication number
US3500599A
US3500599A US677210A US3500599DA US3500599A US 3500599 A US3500599 A US 3500599A US 677210 A US677210 A US 677210A US 3500599D A US3500599D A US 3500599DA US 3500599 A US3500599 A US 3500599A
Authority
US
United States
Prior art keywords
truck
pads
door opening
building
strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US677210A
Inventor
Samuel Sciolino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEATHERSHIELD CORP
Original Assignee
WEATHERSHIELD CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WEATHERSHIELD CORP filed Critical WEATHERSHIELD CORP
Application granted granted Critical
Publication of US3500599A publication Critical patent/US3500599A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/008—Dock- or bumper-seals

Definitions

  • FIG. .1 is, a face view of. a of a building provided with. a door opening through which the rear end of a .truck may extend.
  • FIG. 2 is a sectional elevation thereof. on line 22, FIG. 1.
  • FIG. 3 is a view similar to FIG. 2 and showing a part of a truck backed into positionat the door opening.
  • FIG. 5 is a horizontal sectional view of a door opening provided with pads of modified construction.
  • FIG. 6 is a view showing the same padding when deflected by a truck. if
  • FIG. 7 is a horizontal sectional view showing a different arrangement of pads .on the exterior surface of the building about the dooropening.
  • FIG. 8 is an elevation of one of 'thejpads at aside of the door opening.
  • FIG. 9 is a similar View movement of a truck. a
  • FIG. 10 represents the side ofa building having a door opening 11 therein provided with a sill 12 at the lower edge :of the'opening;
  • Trucks or other United States Patent 0 ofthe pads whenxshifted by vehicles, when loading orunloading material, are usually backed toward the door-opening so that the rear end thereof extends into or: into: proximity to the opening.
  • the door opening is usually made of greater width than the width of a truck or vehicle so that vehicles of different widths can be readily backed into operative relation to the door opening. When the door opening is wider than the width of the truck, air spaces are left between the truck and the opposite sides of the door opening.
  • the temperature on the inside of the building is different from that on the outside and consequently the flow of air through the spaces between the truck and the door opening may be objectionable. If, for example, a building is refrigerated or maintained at a temperature higher than the outdoor temperature, the: passage of air through the spaces between the truck sides and the door opening. will interfere with maintaining the desired temperature in the building.
  • pads or strips 15 may be made-of any suitable yielding or resilient material which are engaged by a truck 16 as it is backed into operative relation to the door opening and then compressed or changed in shape so as to maintain a "ice yielding pressure against the side walls of the truck, to form a seal against movement of air through the space between the door opening and the truck.
  • the yielding material may be of any well known cellular material such, for example, as cellular polyethylene foam. This material is very flexible and after being deformed out of its usual shape, it will return to such shape when pressure on the same is released. Thus the pads or strips will exert yielding pressure against the sides of the truck and their flexibility will enable them to cooperate with trucks of different widths and shapes.
  • the positions of these strips or pads 17 which extend across the door opening are made with converging, sides.
  • the inner walls 18 of the pads and the outer walls 19 converge so that the inner edges of the pads are of less thickness than the parts thereof Which are secured to the building wall. This enables pads to flex more readily when engaged by a vehicle.
  • the resilient pads are secured to boards or other fiat supports or plates 20 which in turn are secured to the side walls of the building.
  • the pads are secured to the supporting plates or boards 20 by suitable cement or adhesive, and these supports 20 may then be secured to the building in any suitable or usual manner.
  • a truck or other vehicle As a truck or other vehicle is backed toward the door opening, as shown in FIG. 3, it first engages the outer, flatsurfaces 19 of the pads on opposite sides of the door opening to seal the spaces between the truck and the door frame. If it is desired to back the truck farther toward the building, it then bends the tapered parts of the pads inwardly toward or into the door opening.
  • These pads because of their tapering shape can readily adapt themselves to the sides of the truck, regardless of the extent to which the same is backed into the door opening.
  • the outer surfaces of the pads when made of light, flexible material, are sensitive to damage, particularly when engaged by any irregularities on the sides of the truck, such for example as door hinges or the like, and consequently it is desirable to cover these pads with material which offers high resistance to tearing or damage by the sides of the truck, without interfering with the flexing ofthe pads.
  • the pads are initially covered with a layer of tough, flexible lining material 25 which, for example,
  • the exterior surfaces of the pads or strips which may be contacted by a vehicle are preferably protected by a layer 27 of flexible material which is much tougher and much less subject to tearing than the lining layer 25.
  • This outer layer 27 may extend throughout the height of the pads. It may be for example, a neoprene or other synthetic sheet material which is shaped to cover the outer, flat surfaces 19 of the pads and which has inwardly extending portions or flanges 28 and 29, the portions 28 extending along the tapered face 18 of the pad.
  • the other edge or flange 29 of the tough, flexible outer material 27 extends around the rear edge of the pad.
  • the protecting material may, for example, be attached to the lining material in some suitable manner so that the bending of the inner edges of the pads will not cause breaking or cracking of the protecting, material and ,forwthis. edges 'or flanges of the outer protecting material a readily flexible, elastic material 32, such for example, as sheet rubber.
  • This highly flexible material may be cemented to the outer protectingmaterial 27 at, the edges or flanges 28 and 29 thereof.
  • This elastic material 32 extends beyond the side portions or flanges 28 and 29 and may then be secured to the inner lining layer 25 in any suitable manner, for example, by means of stapling or sewing, as indicated at 33.
  • FIGS. 5, 6 and 7 Ihave shown different forms of Ithefiresilient strips orpads.
  • strips 35 of rectangular shape are provided which are cemented to plates or panels 36, and these panels are secured to the .building.- e
  • FIG. 6 shows how these strips orpads are flexed vwhen i engaged by a truck, 38.
  • padding strips or pads 40 which are arranged on the building adjacent to the door opening 41 but not extending across the same. These strips vserve to engage trucks or vehicles which may be wiclrithan the door opening, and which when backed against the pads 40 will form a suitable obstruction to the passage of air into thedoor opening beyond the sides of the truck.
  • FIG. 4 While I have shown in FIG. 4 in detail the arrangement of the lining and the outer protected layer 27, it will be understood that this arrangement is employed in connection .with all of the strips or pads shown in the other figures of thedrawings.
  • the upper edge of, the door opening may be provided with a curtain ,or other means for contacting the roof of the truck to prevent passage of air through this part of the door space.
  • FIG. 8 I have shown a strip or pad of the type illustrated in the preceding FIGS. 1-7 inclusive, and in FIG. 9 is shown a similar pad or strip when engaged by a truck 38 which has been at least partially unloaded so that the body portion of the truck is moved upwardly as indicated by the arrow.
  • the truck has carried the outer protective covering material 27 upwardly while fiexingthe elastic strips 32, without producingany material upward movement of the outer parts of the strips or pads within the protective part 27.
  • a closure device for sealing the space between a door opening of a building and a vehicle, and which will pu p se.Lproyidewa ongmt elfectivelyoperate with truck bodysizes which are both larger and smaller than the door opening, comprising:

Description

March 17, 1970 s. SCIOLINO 3,500,599
CLOSURE DEVICE Filed Oct. 23, 1967 2 Sheets-Sheet 1 ATTORNEYS.
March 17, 1970 s. SCIOLINO 3,500,599
CLOSURE DEVICE Filed Oct. 23. 1967 2 Sheets-Sheet 2 I I I Z i I H I 177 I I I 70 I E I I I QOJ 5 252 4 5"32 g I I g I 25 I l I I I 29 I I I I I A ATTORNEYS.
3,500,599 I CLOSURE DEVICE Samuel Sciolino, Bulialo, N.Y., assignor to Weathershield v Corporation, Buffalo, NY. Filed Oct. 23, 1967, Ser. No.- 677,210 Int. Cl. E04l1 9/14, 14/00 Us. Cl. 52-173 3 Claims "ABSTRACT OF run DISCLOSURE .In the accompanying drawings; 4 I V FIG. .1 is, a face view of. a of a building provided with. a door opening through which the rear end of a .truck may extend.
a FIG. 2 is a sectional elevation thereof. on line 22, FIG. 1. FIG. 3 .is a view similar to FIG. 2 and showing a part of a truck backed into positionat the door opening.
41. is. a transverse sectional view. on an enlarged scale, showing in detail the padding employed at the door opening. i I 1 FIG. 5 is a horizontal sectional view of a door opening provided with pads of modified construction.
FIG. 6 is a view showing the same padding when deflected by a truck. if
FIG. 7 is a horizontal sectional view showing a different arrangement of pads .on the exterior surface of the building about the dooropening.
FIG. 8 is an elevation of one of 'thejpads at aside of the door opening.
-l FIG. 9 is a similar View movement of a truck. a
' Inthe drawings 10 represents the side ofa building having a door opening 11 therein provided with a sill 12 at the lower edge :of the'opening; Trucks or other United States Patent 0 ofthe pads whenxshifted by vehicles, when loading orunloading material, are usually backed toward the door-opening so that the rear end thereof extends into or: into: proximity to the opening. The door opening is usually made of greater width than the width of a truck or vehicle so that vehicles of different widths can be readily backed into operative relation to the door opening. When the door opening is wider than the width of the truck, air spaces are left between the truck and the opposite sides of the door opening. Frequently the temperature on the inside of the building is different from that on the outside and consequently the flow of air through the spaces between the truck and the door opening may be objectionable. If, for example, a building is refrigerated or maintained at a temperature higher than the outdoor temperature, the: passage of air through the spaces between the truck sides and the door opening. will interfere with maintaining the desired temperature in the building.
In order to remedy this situation I have provided on the exterior of the wall adjacent to the door opening flexible and resilient strips 15 to occupy at least some of the space between the vehicle and the building. These pads or strips may be made-of any suitable yielding or resilient material which are engaged by a truck 16 as it is backed into operative relation to the door opening and then compressed or changed in shape so as to maintain a "ice yielding pressure against the side walls of the truck, to form a seal against movement of air through the space between the door opening and the truck. The yielding material may be of any well known cellular material such, for example, as cellular polyethylene foam. This material is very flexible and after being deformed out of its usual shape, it will return to such shape when pressure on the same is released. Thus the pads or strips will exert yielding pressure against the sides of the truck and their flexibility will enable them to cooperate with trucks of different widths and shapes.
In the particular construction shown in FIGS. 2 and 3, the positions of these strips or pads 17 which extend across the door opening are made with converging, sides. For example, the inner walls 18 of the pads and the outer walls 19 converge so that the inner edges of the pads are of less thickness than the parts thereof Which are secured to the building wall. This enables pads to flex more readily when engaged by a vehicle.
Preferably the resilient pads are secured to boards or other fiat supports or plates 20 which in turn are secured to the side walls of the building. The pads are secured to the supporting plates or boards 20 by suitable cement or adhesive, and these supports 20 may then be secured to the building in any suitable or usual manner. As clearly shown in FIGS. 2 and 3, the converging sides 18 and 19 formed by inclined faces 18 on the portions of the pads which extend across the door opening. As a truck or other vehicle is backed toward the door opening, as shown in FIG. 3, it first engages the outer, flatsurfaces 19 of the pads on opposite sides of the door opening to seal the spaces between the truck and the door frame. If it is desired to back the truck farther toward the building, it then bends the tapered parts of the pads inwardly toward or into the door opening. These pads, because of their tapering shape can readily adapt themselves to the sides of the truck, regardless of the extent to which the same is backed into the door opening.
The outer surfaces of the pads, when made of light, flexible material, are sensitive to damage, particularly when engaged by any irregularities on the sides of the truck, such for example as door hinges or the like, and consequently it is desirable to cover these pads with material which offers high resistance to tearing or damage by the sides of the truck, without interfering with the flexing ofthe pads. For this purpose, as shown in FIG. 4, the pads are initially covered with a layer of tough, flexible lining material 25 which, for example,
could be a woven fabric or a synthetic sheet material,
deformed positions.
The exterior surfaces of the pads or strips which may be contacted by a vehicle are preferably protected by a layer 27 of flexible material which is much tougher and much less subject to tearing than the lining layer 25. This outer layer 27 may extend throughout the height of the pads. It may be for example, a neoprene or other synthetic sheet material which is shaped to cover the outer, flat surfaces 19 of the pads and which has inwardly extending portions or flanges 28 and 29, the portions 28 extending along the tapered face 18 of the pad. The other edge or flange 29 of the tough, flexible outer material 27 extends around the rear edge of the pad.
It is of course desirable to have the outer protecting material 27 attached to the strips or pads in such a manner that the protecting strip may move vertically relatively to the pad. The protecting material may, for example, be attached to the lining material in some suitable manner so that the bending of the inner edges of the pads will not cause breaking or cracking of the protecting, material and ,forwthis. edges 'or flanges of the outer protecting material a readily flexible, elastic material 32, such for example, as sheet rubber. This highly flexible material may be cemented to the outer protectingmaterial 27 at, the edges or flanges 28 and 29 thereof. This elastic material 32 extends beyond the side portions or flanges 28 and 29 and may then be secured to the inner lining layer 25 in any suitable manner, for example, by means of stapling or sewing, as indicated at 33. a
It is of course obvious that during the loading or unloading of a truck positioned in engagement with the strips or pads, the truckwill move upwardly or downwardlydepending on the change in load of the truck. These changes in weightcause theouter protective material 27 to move up and down relatively to the pads and therlining material material 25,, and this movement'is made possible, by 'thevelastic material 32.
In FIGS. 5, 6 and 7 Ihave shown different forms of Ithefiresilient strips orpads. In FIG. 5, strips 35 of rectangular shape, are provided which are cemented to plates or panels 36, and these panels are secured to the .building.- e
FIG. 6 shows how these strips orpads are flexed vwhen i engaged by a truck, 38.
In FIG. 7 I have shown padding strips or pads 40 which are arranged on the building adjacent to the door opening 41 but not extending across the same. These strips vserve to engage trucks or vehicles which may be wiclrithan the door opening, and which when backed against the pads 40 will form a suitable obstruction to the passage of air into thedoor opening beyond the sides of the truck.
, While I have shown in FIG. 4 in detail the arrangement of the lining and the outer protected layer 27, it will be understood that this arrangement is employed in connection .with all of the strips or pads shown in the other figures of thedrawings.
The upper edge of, the door opening may be provided with a curtain ,or other means for contacting the roof of the truck to prevent passage of air through this part of the door space.
In FIG.. 8 I have shown a strip or pad of the type illustrated in the preceding FIGS. 1-7 inclusive, and in FIG. 9 is shown a similar pad or strip when engaged by a truck 38 which has been at least partially unloaded so that the body portion of the truck is moved upwardly as indicated by the arrow. In .this movement the truck has carried the outer protective covering material 27 upwardly while fiexingthe elastic strips 32, without producingany material upward movement of the outer parts of the strips or pads within the protective part 27.
I claim: a
1, A closure device for sealing the space between a door opening of a building and a vehicle, and which will pu p se.Lproyidewa ongmt elfectivelyoperate with truck bodysizes which are both larger and smaller than the door opening, comprising:
(a) a support-plate which is adapted to be aflixed to the outer building surface on each side of the door opening,
(b) a resilient cellular pad having a thick, compressible main portion, the rear surface of which is mounted on said support plate,
(c) -a-='vehicle side engaging flap-like portion of'said cellular pad extending outwardly across the door opening to engage theside of a truck body which passes through'said opening,"
'(d) the outer and inner surfaces of said fiap-like vehicle side engaging portion of said pad converging to form a tapered thin-section body of substantially less thickness than said main body portion; whereby when the vehiclebody passes through the opening, the-fiap-like reduced size side 'engaging portion'of thepad readily deflects and is not damaged when squeezed ,between'theivehicle body and door opening, (e) an "outer protectivecovering of abrasion resistant resilient material which covers said pad and conforms to the contour thereof to protect the pad from damageby'said vehicle. I
2. The closure device as set forth -in claim 1,wherein: (a) the front surface of said'resilient cellularpad' on each side of saidopening is disposed in a common plane parallel to the outer surface of said building adjacent the. door opening. 1 3. The closure device as set forth in claim 1, wherein: '(a) a strip of very flexible material is disposed along the length'of said pad for retaining said abrasion resistant ,material' in; position, and permits vertical movement thereof along the pad with movement of the truck 'body engaged by it. 1
i References Cited UNITED STATES PATENTS 3,403,489 lo/196s Frommelt .et al. s2' 173 x -'2,704,574. 3/1955 'Etlar 52--2fl4 3,181,205 5/1965 Frommelt et al. 52- 2o'4 7 3,230,675 ,1/1966 Froinmelt et al. 52-173 3,286,417 11/1966 Dazzo. 52--204 3,303,615 2/1967 ONeal i. 52----204X 3,349,519 10/1267 -Nehlig 52-716X 3,375,625 4/1968 Edkins et al. -a--- 52-204X HENRY Primary Examiner. s91). BURKE In, Assistant Examiner
US677210A 1967-10-23 1967-10-23 Closure device Expired - Lifetime US3500599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67721067A 1967-10-23 1967-10-23

Publications (1)

Publication Number Publication Date
US3500599A true US3500599A (en) 1970-03-17

Family

ID=24717776

Family Applications (1)

Application Number Title Priority Date Filing Date
US677210A Expired - Lifetime US3500599A (en) 1967-10-23 1967-10-23 Closure device

Country Status (1)

Country Link
US (1) US3500599A (en)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683572A (en) * 1970-04-28 1972-08-15 Alten K Sealing device for openings in buildings
US3896517A (en) * 1974-01-30 1975-07-29 Bigelow F E Jun Connecting apparatus
US4038792A (en) * 1975-11-28 1977-08-02 W. B. Mcguire Co., Inc. Wear protector for truck dock door seal
US4084348A (en) * 1976-03-29 1978-04-18 Gunnar Hast Sealing strip
US4213279A (en) * 1978-08-09 1980-07-22 Layne Richard C Dock seal for building doorway
US4574542A (en) * 1984-12-12 1986-03-11 Flexion, Inc. Dock seal construction
US4601142A (en) * 1984-05-02 1986-07-22 Frommelt Industries, Inc. Loading dock shelters
US4679364A (en) * 1986-01-06 1987-07-14 Kelley Company Inc. Dock seal
US4711059A (en) * 1985-03-11 1987-12-08 Gladys M. Sahr Dock seal with lip for sealing door hinge gap
US4724648A (en) * 1986-01-15 1988-02-16 Richard Diepholder Deformable seal element to seal the gap between an aperture in a building and a vehicle driven up to the latter
US4799342A (en) * 1984-12-12 1989-01-24 Eriks Holding N.V. Combined dock seal and shelter
US4799341A (en) * 1987-09-23 1989-01-24 Frommelt Industries, Inc. Wedge seal for loading dock shelter
US4873800A (en) * 1988-02-03 1989-10-17 Frommelt Industries, Inc. Loading dock seal
US5333424A (en) * 1993-01-27 1994-08-02 Chalfant Sewing Fabricators, Inc. Loading dock door seal extender
US5394662A (en) * 1993-06-17 1995-03-07 Rite-Hite Corporation Seal assembly for a loading dock shelter
US5396676A (en) * 1989-04-03 1995-03-14 The Serco Corporation Vertically storing dock leveler
US5622016A (en) * 1993-10-07 1997-04-22 Rite-Hite Corporation Gutter and seal assembly
US5953868A (en) * 1993-06-17 1999-09-21 Rite-Hite Holding Corporation Loading dock seal assembly
US6014844A (en) * 1998-09-22 2000-01-18 Rite-Hite Holding Corporation Wedged draft pad
US6016637A (en) * 1997-06-12 2000-01-25 Kelley Company, Inc. Dock seal and method of producing the same
WO2001079094A1 (en) * 2000-04-13 2001-10-25 Rite-Hite Holding Corporation Heat shielded dock pad
US20030145535A1 (en) * 2002-02-06 2003-08-07 Dibiase Joseph J. Lead-in bumper for a loading dock
US6654976B2 (en) * 2001-07-06 2003-12-02 Rite-Hite Holding Corporation Seal for a dock leveler lip
US20040123532A1 (en) * 2000-04-13 2004-07-01 Rite-Hite Holding Corporation Heat shielded dock pad
US20040134139A1 (en) * 2003-01-09 2004-07-15 Jeff Busch Combination dock shelter and dock seal with replaceable seal members
US6854224B2 (en) 2001-02-20 2005-02-15 Rite - Hite Holding Corporation Loading dock with vertically movable side pads
US20050102929A1 (en) * 2002-07-26 2005-05-19 Hoffmann David J. Seal for a loading dock bumper
US20060090407A1 (en) * 2004-11-04 2006-05-04 Hoffmann David J Flexible structures for use with dock seals and shelters
US20060272222A1 (en) * 2000-04-13 2006-12-07 Hoffmann David J Heat shielded sealing curtain
US7146673B1 (en) 2005-11-08 2006-12-12 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US20080104902A1 (en) * 2006-11-07 2008-05-08 Rite-Hite Holding Corporation Low profile support panel for a dock seal
US20090077906A1 (en) * 2007-09-24 2009-03-26 4Front Engineered Solutions, Inc. Loading dock truck shelters
US20100186318A1 (en) * 2009-01-26 2010-07-29 Eungard William C Loading dock truck and trailer seals and associated systems and methods
US20100199582A1 (en) * 2009-02-11 2010-08-12 Oliver Wayne P Temperature compensating outdoor wall padding apparatus and method for forming the same
US7877831B2 (en) 2005-11-08 2011-02-01 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US8112949B2 (en) 2008-12-12 2012-02-14 4Front Engineered Solutions, Inc. Segmented dock seals for truck loading docks and associated systems and methods
DE102013007176A1 (en) * 2013-04-24 2014-10-30 Herbert Mengel Dock shelter for a truck loading station for attachment to a hall wall
US9073710B1 (en) * 2012-01-03 2015-07-07 4Front Engineered Solutions, Inc. Dock leveler sealing systems
US9434559B2 (en) * 2014-09-19 2016-09-06 Blue Giant Equipment Corporation Lightweight multi-layer foam dock seal system
US9592972B1 (en) 2015-08-24 2017-03-14 Rite-Hite Holding Corporation Sealing members for weather barriers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704574A (en) * 1955-03-22 etlar
US3181205A (en) * 1962-06-19 1965-05-04 Dubuque Awning & Tent Co Pad structures
US3230675A (en) * 1963-09-04 1966-01-25 Dubuque Awning And Tent Co Dock pads with adjustable head pad
US3286417A (en) * 1965-07-28 1966-11-22 Errol P Dazzo Door-sealing device for truck dock
US3303615A (en) * 1965-02-12 1967-02-14 O'neal Larry Inflatable dock seal
US3349519A (en) * 1964-08-31 1967-10-31 Nehlig Albert Shaped element of plastic material for composite door frames
US3375625A (en) * 1967-05-24 1968-04-02 Medalist Ind Inc Door seal
US3403489A (en) * 1966-12-12 1968-10-01 Dubuque Awning & Tent Co Loading dock shelters

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704574A (en) * 1955-03-22 etlar
US3181205A (en) * 1962-06-19 1965-05-04 Dubuque Awning & Tent Co Pad structures
US3230675A (en) * 1963-09-04 1966-01-25 Dubuque Awning And Tent Co Dock pads with adjustable head pad
US3349519A (en) * 1964-08-31 1967-10-31 Nehlig Albert Shaped element of plastic material for composite door frames
US3303615A (en) * 1965-02-12 1967-02-14 O'neal Larry Inflatable dock seal
US3286417A (en) * 1965-07-28 1966-11-22 Errol P Dazzo Door-sealing device for truck dock
US3403489A (en) * 1966-12-12 1968-10-01 Dubuque Awning & Tent Co Loading dock shelters
US3375625A (en) * 1967-05-24 1968-04-02 Medalist Ind Inc Door seal

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683572A (en) * 1970-04-28 1972-08-15 Alten K Sealing device for openings in buildings
US3896517A (en) * 1974-01-30 1975-07-29 Bigelow F E Jun Connecting apparatus
US4038792A (en) * 1975-11-28 1977-08-02 W. B. Mcguire Co., Inc. Wear protector for truck dock door seal
US4084348A (en) * 1976-03-29 1978-04-18 Gunnar Hast Sealing strip
US4213279A (en) * 1978-08-09 1980-07-22 Layne Richard C Dock seal for building doorway
US4601142A (en) * 1984-05-02 1986-07-22 Frommelt Industries, Inc. Loading dock shelters
US4799342A (en) * 1984-12-12 1989-01-24 Eriks Holding N.V. Combined dock seal and shelter
US4574542A (en) * 1984-12-12 1986-03-11 Flexion, Inc. Dock seal construction
US4711059A (en) * 1985-03-11 1987-12-08 Gladys M. Sahr Dock seal with lip for sealing door hinge gap
US4679364A (en) * 1986-01-06 1987-07-14 Kelley Company Inc. Dock seal
US4724648A (en) * 1986-01-15 1988-02-16 Richard Diepholder Deformable seal element to seal the gap between an aperture in a building and a vehicle driven up to the latter
US4799341A (en) * 1987-09-23 1989-01-24 Frommelt Industries, Inc. Wedge seal for loading dock shelter
US4873800A (en) * 1988-02-03 1989-10-17 Frommelt Industries, Inc. Loading dock seal
US5396676A (en) * 1989-04-03 1995-03-14 The Serco Corporation Vertically storing dock leveler
US5333424A (en) * 1993-01-27 1994-08-02 Chalfant Sewing Fabricators, Inc. Loading dock door seal extender
US5394662A (en) * 1993-06-17 1995-03-07 Rite-Hite Corporation Seal assembly for a loading dock shelter
US5953868A (en) * 1993-06-17 1999-09-21 Rite-Hite Holding Corporation Loading dock seal assembly
US5622016A (en) * 1993-10-07 1997-04-22 Rite-Hite Corporation Gutter and seal assembly
US6016637A (en) * 1997-06-12 2000-01-25 Kelley Company, Inc. Dock seal and method of producing the same
US6170205B1 (en) * 1997-06-12 2001-01-09 Kelley Company, Inc. Dock seal and method of producing the same
US6014844A (en) * 1998-09-22 2000-01-18 Rite-Hite Holding Corporation Wedged draft pad
WO2001079094A1 (en) * 2000-04-13 2001-10-25 Rite-Hite Holding Corporation Heat shielded dock pad
US7287353B2 (en) 2000-04-13 2007-10-30 Rite-Hite Holding Corporation Heat shielded dock pad
US20040123532A1 (en) * 2000-04-13 2004-07-01 Rite-Hite Holding Corporation Heat shielded dock pad
US7246467B1 (en) 2000-04-13 2007-07-24 Rite-Hite Holding Corporation Heat shielded dock pad
US20060272222A1 (en) * 2000-04-13 2006-12-07 Hoffmann David J Heat shielded sealing curtain
US6854224B2 (en) 2001-02-20 2005-02-15 Rite - Hite Holding Corporation Loading dock with vertically movable side pads
US6654976B2 (en) * 2001-07-06 2003-12-02 Rite-Hite Holding Corporation Seal for a dock leveler lip
EP1478817A4 (en) * 2002-02-06 2005-08-10 Rite Hite Holding Corp Lead-in bumper for a loading dock
EP1478817A1 (en) * 2002-02-06 2004-11-24 Rite-Hite Holding Corporation Lead−in bumper for a loading dock
US20030145535A1 (en) * 2002-02-06 2003-08-07 Dibiase Joseph J. Lead-in bumper for a loading dock
US20050102929A1 (en) * 2002-07-26 2005-05-19 Hoffmann David J. Seal for a loading dock bumper
US20040134139A1 (en) * 2003-01-09 2004-07-15 Jeff Busch Combination dock shelter and dock seal with replaceable seal members
US7757442B2 (en) 2004-11-04 2010-07-20 Rite-Hite Holding Corporation Flexible structures for use with dock seals and shelters
US20060090407A1 (en) * 2004-11-04 2006-05-04 Hoffmann David J Flexible structures for use with dock seals and shelters
US8887447B2 (en) 2004-11-04 2014-11-18 Rite-Hite Holding Corporation Flexible structures for use with dock seals and shelters
US8307588B2 (en) 2004-11-04 2012-11-13 Rite-Hite Holding Corporation Flexible structures for use with dock seals and shelters
US20100251639A1 (en) * 2004-11-04 2010-10-07 Hoffmann David J Flexible structures for use with dock seals and shelters
US7877831B2 (en) 2005-11-08 2011-02-01 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US20070101519A1 (en) * 2005-11-08 2007-05-10 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US7584517B2 (en) 2005-11-08 2009-09-08 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US7146673B1 (en) 2005-11-08 2006-12-12 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US7334281B2 (en) 2005-11-08 2008-02-26 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US20070101518A1 (en) * 2005-11-08 2007-05-10 Rite-Hite Holding Corporation Weather shield for underneath a dock leveler
US20080104902A1 (en) * 2006-11-07 2008-05-08 Rite-Hite Holding Corporation Low profile support panel for a dock seal
US8353136B2 (en) 2006-11-07 2013-01-15 Rite-Hite Holding Corporation Low profile support panel for a dock seal
US20090077906A1 (en) * 2007-09-24 2009-03-26 4Front Engineered Solutions, Inc. Loading dock truck shelters
US8112949B2 (en) 2008-12-12 2012-02-14 4Front Engineered Solutions, Inc. Segmented dock seals for truck loading docks and associated systems and methods
US8307589B2 (en) 2008-12-12 2012-11-13 4Front Engineered Solutions, Inc. Segmented dock seals for truck loading docks and associated systems and methods
US20100186318A1 (en) * 2009-01-26 2010-07-29 Eungard William C Loading dock truck and trailer seals and associated systems and methods
US8181401B2 (en) 2009-01-26 2012-05-22 4Front Engineered Solutions, Inc. Loading dock truck and trailer seals and associated systems and methods
US20120137611A1 (en) * 2009-02-11 2012-06-07 Sportsfield Specialties Outdoor wall padding apparatus and method for forming the same
US8082696B2 (en) * 2009-02-11 2011-12-27 Sportsfield Specialties, Inc. Temperature compensating outdoor wall padding apparatus and method for forming the same
US8424249B2 (en) * 2009-02-11 2013-04-23 Sportsfield Specialties, Inc. Outdoor wall padding apparatus and method for forming the same
US20100199582A1 (en) * 2009-02-11 2010-08-12 Oliver Wayne P Temperature compensating outdoor wall padding apparatus and method for forming the same
US9073710B1 (en) * 2012-01-03 2015-07-07 4Front Engineered Solutions, Inc. Dock leveler sealing systems
US9327922B2 (en) 2012-01-03 2016-05-03 4Front Engineered Solutions, Inc. Dock leveler sealing systems
DE102013007176A1 (en) * 2013-04-24 2014-10-30 Herbert Mengel Dock shelter for a truck loading station for attachment to a hall wall
DE102013007176B4 (en) * 2013-04-24 2017-11-02 Herbert Mengel Dock shelter for a truck loading station for attachment to a hall wall
US9434559B2 (en) * 2014-09-19 2016-09-06 Blue Giant Equipment Corporation Lightweight multi-layer foam dock seal system
US9592972B1 (en) 2015-08-24 2017-03-14 Rite-Hite Holding Corporation Sealing members for weather barriers

Similar Documents

Publication Publication Date Title
US3500599A (en) Closure device
US3403489A (en) Loading dock shelters
US3181205A (en) Pad structures
US3375625A (en) Door seal
US8915029B2 (en) Face panels for loading dock seals and shelters
US4638612A (en) Dock shelter
US3303615A (en) Inflatable dock seal
US8887447B2 (en) Flexible structures for use with dock seals and shelters
US3230675A (en) Dock pads with adjustable head pad
US4799341A (en) Wedge seal for loading dock shelter
US3286417A (en) Door-sealing device for truck dock
US9751703B2 (en) Face panels for loading dock seals and shelters
US5174084A (en) Deformable sealing device for a gap between a wall opening of a building wall and a back wall of a vehicle
US4038792A (en) Wear protector for truck dock door seal
US4574542A (en) Dock seal construction
US5333424A (en) Loading dock door seal extender
US4015380A (en) Truck loading dock seal
US6951084B2 (en) Draft shield for a loading dock shelter
US2899238A (en) Swanson
US2034723A (en) Freight container
US2792936A (en) Panel crating structures
US3025908A (en) Temporary car door
US2513789A (en) Door seal
US3057580A (en) Aircraft control surface protector
US2915116A (en) Temporary car opening closure