USRE34924E - Roller track for storage rack, roller conveyor, or similar apparatus - Google Patents
Roller track for storage rack, roller conveyor, or similar apparatus Download PDFInfo
- Publication number
- USRE34924E USRE34924E US08/156,357 US15635793A USRE34924E US RE34924 E USRE34924 E US RE34924E US 15635793 A US15635793 A US 15635793A US RE34924 E USRE34924 E US RE34924E
- Authority
- US
- United States
- Prior art keywords
- roller
- walls
- rollers
- group
- journalled
- 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
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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
- B65G13/00—Roller-ways
- B65G13/11—Roller frames
-
- 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
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/023—Arrangements of article supporting rollers on racks
Definitions
- This invention pertains to improvements in a roller track for a storage rack, roller conveyor, or similar apparatus.
- the roller track has a novel arrangement of freely rotatable rollers journalled between two parallel walls.
- a roller track typically, as used in a storage rack of a type arranged for gravitational flow of load-bearing pallets, a roller track comprises two walls, which may be respectively provided by separate structural members and which are disposed in parallel relation to each other, and a longitudinal array of freely rotatable rollers, which are journalled between the walls in such manner that the rollers extend upwardly from a space between the walls.
- the roller track has a slight inclination (e.g. 3°) relative to a horizontal plane.
- Unarco Material Handling a unit of UNR Industries, Inc.
- each roller it is conventional for each roller to have a spindle, on which such roller is journalled, and for each spindle to be individually bolted to and between the walls by a bolt passing through apertures in the walls and through an axial bore in such spindle. Because each storage rack employs many roller tracks, and because each roller track employs many rollers, it is laborious to bolt the spindle of every roller.
- This invention provides improvements in a roller track for a storage rack, roller conveyor, or similar apparatus, particularly but not exclusive a storage rack of the type arranged for gravitational flow of load-bearing pallets.
- roller track is similar to roller tracks known heretofore in comprising two walls, which are disposed in parallel relation to each other, and an array of freely rotatable rollers, which are journalled between the walls in such manner that the rollers extend upwardly from a space between the walls.
- each roller has a spindle, on which such roller is journalled.
- the axes of the spindles define a plane, which may have a slight inclination relative to a horizontal plane, as in a storage rack arranged for gravitational flow, or which may be substantially horizontal, as in a roller conveyor.
- the roller track differs from roller tracks known heretofore in that the rollers are divided into two groups, namely a first group and a second group.
- the rollers are journalled on spindles bolted to the walls so as to assemble the rollers to the walls.
- the rollers are journalled on spindles held by but not bolted to the walls.
- each wall has a separate aperture defining a continuous margin and being associated with a respective one of the rollers of the second group.
- Each end of the spindle of each roller of the second group is associated with one of the apertures of one of the walls and has a shoulder portion larger than the associated aperture and a pintle portion fitted into the associated aperture.
- each spindle of the rollers of the second group has rotational symmetry about an axis of such spindle, and each aperture has rotational symmetry about an axis of such aperture. It is preferred, moreover, that the pintle portion of each end of each such spindle has a cylindrical surface and that each aperture has a cylindrical margin.
- every nth roller is a roller of the first group while every other roller is a roller of the second group.
- n is a whole number greater than one, preferably three.
- FIG. 1 is a front view of one lane on one level of a storage rack arranged for gravitational flow of load-bearing pallets.
- Two roller tracks, which embody this invention, are shown with such a pallet on the roller tracks.
- FIG. 2 is a side view of subject matter shown in FIG. 1. Two such pallets are shown in the lane.
- FIG. 3 is an enlarged, fragmentary detail, which is taken from FIG. 2.
- FIG. 4 is a further enlarged, fragmentary, exploded, perspective view of two walls and some of each of two groups of freely rotatable rollers, as assembled to provide one of the roller tracks.
- FIG. 5 is a greatly enlarged fragmentary, sectional view taken through one of the rollers of one such group, along line 5--5 in FIG. 3, in a direction indicated by arrows.
- FIG. 6 is a somewhat enlarged, cross-sectional view taken through a different one of the rollers of the same group, along line 6--6 in FIG. 4, in a direction indicated by arrows.
- a storage rack 10 constituting a preferred embodiment of this invention is arranged for gravitational flow of pallets P bearing loads of stacked boxes B.
- the storage rack 10 is similar to storage racks known heretofore in being a bolted or welded structure comprising structural steel members. A bolted structure is preferred. These members include upright members 12, transverse members 14, and longitudinal members 16. As indicated by an angle ⁇ in FIG. 3, each longitudinal member 16 has a slight inclination (e.g. 3°) relative to a horizontal plane.
- Each longitudinal member 16 has an upper flange 18 extending in a lateral direction, a lower flange 20 extending in the same direction, and a vertical wall 22 extending between the flanges 18, 20.
- the longitudinal members 16 are arranged in pairs, in which the flanges 18, 20, of the respective members 16 extend oppositely, and in which the walls 16 of the respective members 22 are disposed in parallel relation to each other.
- the longitudinal members 16 are arranged in pairs.
- the longitudinal members 16 of each pair are assembled with a longitudinal array of steel rollers including rollers 24 of a first group and rollers 26 of a second group to provide a roller track 28.
- the rollers 24, 26, are journalled between the walls 22 so as to be freely rotatable.
- the rollers 24, 26, are journalled in such manner that the rollers 24, 26, extend upwardly from a space between the walls 22. Because of the slight inclination of each longitudinal member 16, the roller track 28 has a similar inclination (e.g. 3°) relative to a horizontal plane.
- the roller tracks 28 are arranged in pairs. Each pair of the roller tracks 28 is used to support pallets, such as the pallets P, in one lane on one level of the storage rack 10. According to conventional practice, the storage rack 10 may have multiple lanes on multiple levels.
- each roller track 28 comprises a stop (not shown) which is mounted between the longitudinal members 16.
- the stop limits gravitational flow of the pallets, such as the pallets P, along such roller track 28.
- a preferred stop is disclosed in a copending application filed simultaneously herewith under U.S. Ser. No. 07/582,327 and assigned commonly herewith. The copending application entitled “Roller Track And Stop Therefor.”
- each longitudinal member 16 Near the upper flange 18 of each longitudinal member 16, the wall 22 of such longitudinal member 16, has a longitudinal array of regularly spaced, circular apertures 30, which extend through the wall 22.
- the apertures 30 are arranged in pairs. Each pair of the apertures 30 is associated with one of the rollers 24 or with one of the rollers 26. Each pair of the apertures 30 includes one aperture 30 in each longitudinal member 16 and the apertures 30 of each pair are aligned with each other. Because the apertures 30 are circular, each aperture 30 has a continuous margin and has rotational symmetry about an axis of such aperture 30.
- rollers 24 of the first group are similar to rollers used in roller tracks used in roller tracks known heretofore and are journalled similarly.
- Each roller 24 has a spindle 32 and ball bearing (not shown) enabling such roller 24 to rotate freely on the spindle 32.
- the spindle 32 is tubular and is aligned with the apertures 30 associated with such roller 24.
- a bolt 34 passing through one of the apertures 30 associated with each roller 24, through the spindle 32 of such roller 24, and through the other associated aperture 30, and a nut 36 threaded onto the bolt 34 are used to bolt such roller 24 to the walls 22 having the associated apertures 30.
- Such roller 24 is bolted in such manner that the spindle 32 bears against the continuous margins of the associated apertures 30.
- roller 26 of the second group are different from the rollers 24 of the first group and are journalled differently.
- Each roller 26 has a spindle 38 and ball bearings 40 enabling such roller 26 to rotate freely on the spindle 38.
- Such bearings 40 are mounted operatively in a known manner.
- the spindle 38 of each roller 26 has rotational symmetry about an axis of the spindle 38 and is provided at each end with a shoulder portion 42 and a pintle portion 44.
- the shoulder portion 42 is larger than the apertures 30 and bears against the continuous margin of one of the apertures 30 associated with such roller 26.
- the pintle portion 44 has a cylindrical surface conforming to the same apertures 30 and is fitted into the same aperture 30. Although it is preferred for the pintle portion 44 to be press-fitted into such aperture 28, the pintle portion 44 may be freely rotatable within such aperture 30.
- every nth roller is a roller 24 of the first group while every other roller is a roller 26 of the second group.
- n is three.
- rollers 24 of the first group and the rollers 26 of the second group are arranged in a repeating pattern, along the aforenoted substantial portion of each roller track 28.
- every third roller is a roller 24 of the first group, and every other roller is a roller 26 of the second group.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/156,357 USRE34924E (en) | 1990-09-13 | 1993-11-23 | Roller track for storage rack, roller conveyor, or similar apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/582,255 US5056642A (en) | 1990-09-13 | 1990-09-13 | Roller track for storage rack, roller conveyor, or similar apparatus |
US08/156,357 USRE34924E (en) | 1990-09-13 | 1993-11-23 | Roller track for storage rack, roller conveyor, or similar apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/582,255 Reissue US5056642A (en) | 1990-09-13 | 1990-09-13 | Roller track for storage rack, roller conveyor, or similar apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE34924E true USRE34924E (en) | 1995-05-02 |
Family
ID=24328412
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/582,255 Ceased US5056642A (en) | 1990-09-13 | 1990-09-13 | Roller track for storage rack, roller conveyor, or similar apparatus |
US08/156,357 Expired - Lifetime USRE34924E (en) | 1990-09-13 | 1993-11-23 | Roller track for storage rack, roller conveyor, or similar apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/582,255 Ceased US5056642A (en) | 1990-09-13 | 1990-09-13 | Roller track for storage rack, roller conveyor, or similar apparatus |
Country Status (1)
Country | Link |
---|---|
US (2) | US5056642A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6202821B1 (en) | 1998-12-16 | 2001-03-20 | Richard E. Crockett | Gravity motivated flow-rail |
US20030188951A1 (en) * | 2002-04-05 | 2003-10-09 | John Veitch | Heavy unit load conveyor wheel |
US20050067252A1 (en) * | 2003-09-26 | 2005-03-31 | Bowen Brian D. | Pre-loaded roller turn roller |
US20060175181A1 (en) * | 2005-02-04 | 2006-08-10 | Layne James L | Reduced friction roller support for modular link conveyor chain |
US20080164124A1 (en) * | 2005-03-11 | 2008-07-10 | Wrh Walter Reist Holding Ag | Transport Device, Rolling Body and Transport Body |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT400748B (en) * | 1991-02-06 | 1996-03-25 | Weber Guenter | CARTRIDGE VALVE |
US5476167A (en) * | 1993-12-23 | 1995-12-19 | Unarco Material Handling, Inc. | Roller track having externally secured spindles for storage rack, roller conveyor, or similar apparatus |
US5435427A (en) * | 1993-12-29 | 1995-07-25 | Unarco Material Handling, Inc. | Roller track having internally welded spindles for storage rack, roller conveyor, or similar apparatus |
US5938367A (en) * | 1997-08-08 | 1999-08-17 | United Fixtures Company | Automatic piston lock mechanism |
US6289837B1 (en) | 1999-11-12 | 2001-09-18 | Roller Rack Corporation | Roller rack device |
US7591105B2 (en) * | 2005-06-10 | 2009-09-22 | Balser Gerald G | Attic storage system and method |
US7556472B2 (en) * | 2006-04-24 | 2009-07-07 | Fuelcell Energy, Inc. | Assembly for and method of housing an object, such as fuel cell balance of plant equipment, for transport to and storage at a user location |
EP2143668A1 (en) * | 2008-07-09 | 2010-01-13 | Interrroll Holding AG | Roller conveyor with profile rail |
WO2013022815A1 (en) * | 2011-08-10 | 2013-02-14 | Allpax Products Llc | Retort with progressive latch, roller support arrangement and method and system for reciprocation of loads |
Citations (44)
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---|---|---|---|---|
US2964155A (en) * | 1958-12-26 | 1960-12-13 | Leonard B Flowers | Conveyor |
US2983352A (en) * | 1959-09-29 | 1961-05-09 | Flora Caesar A De | Wheel conveyor |
US3197647A (en) * | 1961-04-20 | 1965-07-27 | Gunsons Sortex Ltd | Photosensitive apparatus for sorting translucent objects |
US3209879A (en) * | 1965-10-05 | Best available copy | ||
US3252556A (en) * | 1963-01-03 | 1966-05-24 | Electrolux Ab | Roller conveyor |
US3305089A (en) * | 1965-08-13 | 1967-02-21 | Gunsons Sortex Ltd | Apparatus for sorting fluorescent articles |
US3420348A (en) * | 1967-02-13 | 1969-01-07 | Leona Caudell | Storage rack rail member |
US3586142A (en) * | 1969-05-01 | 1971-06-22 | Rapistan Inc | Rail for racks and the like |
US3710099A (en) * | 1970-01-05 | 1973-01-09 | Gunsons Sortex Ltd | Optical unit for use in a light-sensitive sorting machine |
US3721326A (en) * | 1970-02-05 | 1973-03-20 | Mills Const Sa | Device for mounting rollers on a runway |
US3735143A (en) * | 1972-01-03 | 1973-05-22 | Sortex Co Inc | Color monitoring apparatus |
US3869031A (en) * | 1973-04-04 | 1975-03-04 | Interlake Inc | Structure levelling assembly |
US3890221A (en) * | 1973-12-14 | 1975-06-17 | Sortex North America | Translucency/opaque sorting |
US3900112A (en) * | 1973-04-09 | 1975-08-19 | Kingston Warren Corp | Gravity storage system |
US3915275A (en) * | 1973-08-27 | 1975-10-28 | Masyc Ag | Set of constructional elements for making conveyor devices |
US3930991A (en) * | 1974-10-13 | 1976-01-06 | Sortex Company Of North America, Inc. | Meat processing |
US3944076A (en) * | 1973-10-26 | 1976-03-16 | Gunson's Sortex (Mineral And Automation) Limited | Apparatus for sorting objects by conductivity or resistivity |
US3990580A (en) * | 1974-01-28 | 1976-11-09 | Gunson's Sortex Limited | Method and apparatus for sorting sultanas |
US3993899A (en) * | 1973-12-13 | 1976-11-23 | Gunson's Sortex Limited | Sorting machine with fiber optic focusing means |
US4050561A (en) * | 1975-07-24 | 1977-09-27 | Peter Seitz | Conveyor for stacking cases in a run-through storage structure |
US4054195A (en) * | 1975-05-19 | 1977-10-18 | Mallard Manufacturing Corporation | Roller conveyor |
US4057146A (en) * | 1974-05-24 | 1977-11-08 | Xeltron, S.A. | Optical sorting apparatus |
US4203522A (en) * | 1978-06-28 | 1980-05-20 | Sortex North America, Inc. | Method and apparatus for sorting agricultural products |
US4204950A (en) * | 1978-02-08 | 1980-05-27 | Sortex North America, Inc. | Produce grading system using two visible and two invisible colors |
US4225242A (en) * | 1978-02-08 | 1980-09-30 | Sortex North America, Inc. | Four color tomato grader |
US4271966A (en) * | 1978-01-11 | 1981-06-09 | Gunson's Sortex Limited | Sorting machine |
US4356921A (en) * | 1980-01-28 | 1982-11-02 | Gunson's Sortex Limited | Inspection apparatus, e.g. for a sorting machine |
US4454029A (en) * | 1981-05-27 | 1984-06-12 | Delta Technology Corporation | Agricultural product sorting |
US4513868A (en) * | 1981-01-19 | 1985-04-30 | Gunson's Sortex Limited | Sorting machine |
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US4765493A (en) * | 1987-08-25 | 1988-08-23 | The Interlake Corporation | Gravity feed merchandise rack |
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US4807762A (en) * | 1982-12-21 | 1989-02-28 | Illycaffe S.P.A. | Procedure for sorting a granular material and a machine for executing the procedure |
US4811249A (en) * | 1985-02-15 | 1989-03-07 | Delta Technical Services, Limited | Data loggers |
US4878582A (en) * | 1988-03-22 | 1989-11-07 | Delta Technology Corporation | Multi-channel bichromatic product sorter |
US5062532A (en) * | 1990-05-07 | 1991-11-05 | Esm International, Inc. | Sorting machine including photo site processing |
US5148923A (en) * | 1990-02-19 | 1992-09-22 | Sortex Limited | Apparatus for sorting or otherwise treating objects |
US5179474A (en) * | 1991-03-21 | 1993-01-12 | Delta Technology Corporation | Viewer for a sorting machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3821326A (en) * | 1972-05-03 | 1974-06-28 | Uniroyal Inc | Polycarbonate-vinylidene fluoride hexafluoropropylene copolymer blend |
-
1990
- 1990-09-13 US US07/582,255 patent/US5056642A/en not_active Ceased
-
1993
- 1993-11-23 US US08/156,357 patent/USRE34924E/en not_active Expired - Lifetime
Patent Citations (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209879A (en) * | 1965-10-05 | Best available copy | ||
US2964155A (en) * | 1958-12-26 | 1960-12-13 | Leonard B Flowers | Conveyor |
US2983352A (en) * | 1959-09-29 | 1961-05-09 | Flora Caesar A De | Wheel conveyor |
US3197647A (en) * | 1961-04-20 | 1965-07-27 | Gunsons Sortex Ltd | Photosensitive apparatus for sorting translucent objects |
US3252556A (en) * | 1963-01-03 | 1966-05-24 | Electrolux Ab | Roller conveyor |
US3305089A (en) * | 1965-08-13 | 1967-02-21 | Gunsons Sortex Ltd | Apparatus for sorting fluorescent articles |
US3420348A (en) * | 1967-02-13 | 1969-01-07 | Leona Caudell | Storage rack rail member |
US3586142A (en) * | 1969-05-01 | 1971-06-22 | Rapistan Inc | Rail for racks and the like |
US3710099A (en) * | 1970-01-05 | 1973-01-09 | Gunsons Sortex Ltd | Optical unit for use in a light-sensitive sorting machine |
US3721326A (en) * | 1970-02-05 | 1973-03-20 | Mills Const Sa | Device for mounting rollers on a runway |
US3735143A (en) * | 1972-01-03 | 1973-05-22 | Sortex Co Inc | Color monitoring apparatus |
US3869031A (en) * | 1973-04-04 | 1975-03-04 | Interlake Inc | Structure levelling assembly |
US3900112A (en) * | 1973-04-09 | 1975-08-19 | Kingston Warren Corp | Gravity storage system |
US3915275A (en) * | 1973-08-27 | 1975-10-28 | Masyc Ag | Set of constructional elements for making conveyor devices |
US3944076A (en) * | 1973-10-26 | 1976-03-16 | Gunson's Sortex (Mineral And Automation) Limited | Apparatus for sorting objects by conductivity or resistivity |
US3993899A (en) * | 1973-12-13 | 1976-11-23 | Gunson's Sortex Limited | Sorting machine with fiber optic focusing means |
US3890221A (en) * | 1973-12-14 | 1975-06-17 | Sortex North America | Translucency/opaque sorting |
US3990580A (en) * | 1974-01-28 | 1976-11-09 | Gunson's Sortex Limited | Method and apparatus for sorting sultanas |
US4057146A (en) * | 1974-05-24 | 1977-11-08 | Xeltron, S.A. | Optical sorting apparatus |
US3930991A (en) * | 1974-10-13 | 1976-01-06 | Sortex Company Of North America, Inc. | Meat processing |
US4054195A (en) * | 1975-05-19 | 1977-10-18 | Mallard Manufacturing Corporation | Roller conveyor |
US4050561A (en) * | 1975-07-24 | 1977-09-27 | Peter Seitz | Conveyor for stacking cases in a run-through storage structure |
US4271966A (en) * | 1978-01-11 | 1981-06-09 | Gunson's Sortex Limited | Sorting machine |
US4204950A (en) * | 1978-02-08 | 1980-05-27 | Sortex North America, Inc. | Produce grading system using two visible and two invisible colors |
US4225242A (en) * | 1978-02-08 | 1980-09-30 | Sortex North America, Inc. | Four color tomato grader |
US4203522A (en) * | 1978-06-28 | 1980-05-20 | Sortex North America, Inc. | Method and apparatus for sorting agricultural products |
US4356921A (en) * | 1980-01-28 | 1982-11-02 | Gunson's Sortex Limited | Inspection apparatus, e.g. for a sorting machine |
US4513868A (en) * | 1981-01-19 | 1985-04-30 | Gunson's Sortex Limited | Sorting machine |
US4454029A (en) * | 1981-05-27 | 1984-06-12 | Delta Technology Corporation | Agricultural product sorting |
US4807762A (en) * | 1982-12-21 | 1989-02-28 | Illycaffe S.P.A. | Procedure for sorting a granular material and a machine for executing the procedure |
US4630736A (en) * | 1983-06-30 | 1986-12-23 | Sortex Limited | Sorting machine utilizing an improved light detection system |
US4699273A (en) * | 1983-12-06 | 1987-10-13 | Gunson's Sortex Limited | Sorting machine |
US4626677A (en) * | 1984-09-27 | 1986-12-02 | Esm International, Inc. | Continuous normalizer for an electronic circuit that compensates for external and internal drifts factors |
US4718558A (en) * | 1984-10-17 | 1988-01-12 | Xeltron, S.A. | Process and apparatus for sorting samples of material |
US4811249A (en) * | 1985-02-15 | 1989-03-07 | Delta Technical Services, Limited | Data loggers |
US4647211A (en) * | 1985-04-12 | 1987-03-03 | Esm International, Inc. | Apparatus for measuring reflectivity which is tolerant of background and product trajectory variations |
US4786895A (en) * | 1985-08-02 | 1988-11-22 | Xeltron, S. A. | Control panel |
US4697709A (en) * | 1985-09-03 | 1987-10-06 | Delta Technology Corporation | Sorter for agricultural products |
US4681203A (en) * | 1985-11-22 | 1987-07-21 | Omniquest, Inc. | Multi-track gravity conveyor |
US4765493A (en) * | 1987-08-25 | 1988-08-23 | The Interlake Corporation | Gravity feed merchandise rack |
US4878582A (en) * | 1988-03-22 | 1989-11-07 | Delta Technology Corporation | Multi-channel bichromatic product sorter |
US5148923A (en) * | 1990-02-19 | 1992-09-22 | Sortex Limited | Apparatus for sorting or otherwise treating objects |
US5062532A (en) * | 1990-05-07 | 1991-11-05 | Esm International, Inc. | Sorting machine including photo site processing |
US5179474A (en) * | 1991-03-21 | 1993-01-12 | Delta Technology Corporation | Viewer for a sorting machine |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6202821B1 (en) | 1998-12-16 | 2001-03-20 | Richard E. Crockett | Gravity motivated flow-rail |
US20030188951A1 (en) * | 2002-04-05 | 2003-10-09 | John Veitch | Heavy unit load conveyor wheel |
US6793060B2 (en) | 2002-04-05 | 2004-09-21 | L.B. International, Inc. | Heavy unit load conveyor wheel |
US20050067252A1 (en) * | 2003-09-26 | 2005-03-31 | Bowen Brian D. | Pre-loaded roller turn roller |
US7036648B2 (en) * | 2003-09-26 | 2006-05-02 | Automatic Systems, Inc. | Pre-loaded roller turn roller |
US20060175181A1 (en) * | 2005-02-04 | 2006-08-10 | Layne James L | Reduced friction roller support for modular link conveyor chain |
US20080164124A1 (en) * | 2005-03-11 | 2008-07-10 | Wrh Walter Reist Holding Ag | Transport Device, Rolling Body and Transport Body |
US7918331B2 (en) * | 2005-03-11 | 2011-04-05 | Wrh Walter Reist Holding Ag | Transport device, rolling body and transport body |
US20110155535A1 (en) * | 2005-03-11 | 2011-06-30 | Wrh Walter Reist Holding Ag | Conveying device, rolling body and conveying body |
US8079463B2 (en) | 2005-03-11 | 2011-12-20 | Wrh Walter Reist Holding Ag | Conveying device, rolling body and conveying body |
Also Published As
Publication number | Publication date |
---|---|
US5056642A (en) | 1991-10-15 |
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