US4789056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slider bed conveyor apparatus and associated method
Assignee: Metso Outotec USA Inc
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Filing: 1987-02-03
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Granted: 1988-12-06
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Expires: 2007-02-03
Abstract
Abstract A slider bed conveyor apparatus and associated method comprising a conveyor belt system having a frame, a slider bed and head and tail idler rollers on either end of the slider bed that are secured to and in recessed position to the slider bed and a conveyor belt running over the idler rollers. When loads such as impact loads are placed on the conveyor belt, the slider bed supports the conveyor belt at the point where the material is loaded. This action resists sagging and stretching of the conveyor belt and also reduces wear on the idler rollers. The idler rollers are each mounted on a shaft and are adapted to be vertically adjustable depending on load requirements. The conveyor belt system is modular and of unitary structure and several modules can be joined so as to form a conveyor belt system of any desired length.
Inventors
- 👤 Robert D. Bourbeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/60; B65G15/62; B65G21/00; B65G21/20; B65G21/2045; B65G21/2063; B65G21/2072; B65G21/2081; B65G2201/00; B65G2201/04; B65G2207/00; B65G2207/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
226 words
A conveyor belt system comprising a frame, an elongated slider bed secured to said frame, said slider bed having slider bed members including a plurality of spaced elongated generally parallel members, said slider bed members oriented generally longitudinally with respect to said frame, said slider bed having recesses defined by said slider bed members at opposed ends thereof, a head idler roller secured to said frame and disposed in one said recess, a tail idler roller secured to said frame and disposed in the opposite said recess, an endless conveyor belt extending over said idler rollers and said slider bed, said slider bed being treated with polyethylene whereby said polyethylene is transferred onto said conveyor belt to create a cross-link effect between said conveyor belt material and said slider bed, said idler rollers each being rotatably mounted on a shaft, said shaft extending axially beyond the sides of said idler roller, and said shaft of said idler roller mounted in adjustable idler roller support means which include a generally horizontally oriented base, a generally vertically oriented sidewall, and a pair of generally vertically oriented support plates relatively spaced a distance greater than the axial length of said idler roller and receiving said extending portion of said shaft, whereby impact loads imposed on said conveyor belt can be supported by said idler rollers and said slider bed.
Claim 2
Dependent Claim
226 words
A conveyor belt system comprising a frame, an elongated slider bed secured to said frame, said slider bed having slider bed members including a plurality of spaced elongated generally parallel members, said slider bed members oriented generally longitudinally with respect to said frame, said slider bed having recesses defined by said slider bed members at opposed ends thereof, a head idler roller secured to said frame and disposed in one said recess, a tail idler roller secured to said frame and disposed in the opposite said recess, an endless conveyor belt extending over said idler rollers and said slider bed, said slider bed being treated with polyethylene whereby said polyethylene is transferred onto said conveyor belt to create a cross-link effect between said conveyor belt material and said slider bed, said idler rollers each being rotatably mounted on a shaft, said shaft extending axially beyond the sides of said idler roller, and said shaft of said idler roller mounted in adjustable idler roller support means which include a generally horizontally oriented base, a generally vertically oriented sidewall, and a pair of generally vertically oriented support plates relatively spaced a distance greater than the axial length of said idler roller and receiving said extending portion of said shaft, whereby impact loads imposed on said conveyor belt can be supported by said idler rollers and said slider bed.
Claim 3
Dependent Claim
41 words
The system of claim 1, including said extending portion of said shaft having connected to it a roller bearing cup to effect fixation of said idler roller to said adjustable idler roller support means while permitting said idler roller to rotate.
Claim 4
Dependent Claim
25 words
The system of claim 2, including jack screw means engaging said adjustable idler roller supports to facilitate raising or lowering said adjustable idler roller supports.
Claim 5
Dependent Claim
13 words
The system of claim 3, including said generally vertically oriented sidewall having slots.
Claim 6
Dependent Claim
87 words
The system of claim 4, including said frame consisting of a plurality of frame members, said adjustable idler roller support means being slidably attached to the opposed end frame members by bolt means and nut means whereby said bolt means pass through said slots in said generally vertically oriented sidewall and said nut means engaging said bolt means to effect intimate engagement of said nut means with the exterior surface of said vertically oriented sidewall so as to fix the position of said adjustable idler roller support.
Claim 7
Dependent Claim
155 words
An adjustability mechanism comprising a conveyor belt system having a frame, a slider bed secured to said frame, a head idler roller secured to and in recessed position with respect to said frame, a tail idler roller secured to and in recessed position with respect to said frame adjacent to the opposite end thereof, a conveyor belt having a central portion and angularly upwardly extending side portions, said central portion extending over and contacting said idler rollers and said slider bed, an adjustable idler support means slidably attached to said frame of said conveyor belt system, and said adjustable idler support means comprising a generally horizontally oriented base and a generally vertically oriented sidewall and a pair of vertically oriented support plates relatively spaced a distance greater than the axial length of said idler roller, whereby said head and tail idler rollers may be vertically adjustable with respect to said frame and said slider bed.
Claim 8
Dependent Claim
155 words
An adjustability mechanism comprising a conveyor belt system having a frame, a slider bed secured to said frame, a head idler roller secured to and in recessed position with respect to said frame, a tail idler roller secured to and in recessed position with respect to said frame adjacent to the opposite end thereof, a conveyor belt having a central portion and angularly upwardly extending side portions, said central portion extending over and contacting said idler rollers and said slider bed, an adjustable idler support means slidably attached to said frame of said conveyor belt system, and said adjustable idler support means comprising a generally horizontally oriented base and a generally vertically oriented sidewall and a pair of vertically oriented support plates relatively spaced a distance greater than the axial length of said idler roller, whereby said head and tail idler rollers may be vertically adjustable with respect to said frame and said slider bed.
Claim 9
Dependent Claim
13 words
The mechanism of claim 6, including said generally vertically oriented sidewall having slots.
Claim 10
Dependent Claim
87 words
The mechanism of claim 7, including said frame consisting of a plurality of frame members, the opposed end frame member being slidably attached to said adjustable idler roller support means by nut means and bolt means whereby said bolt means pass through said slots in said generally vertically oriented sidewall and said nut means engaging said bolt means to effect intimate engagement of said nut means with the exterior surface of said vertically oriented sidewall so as to fix the position of said adjustable idler roller support.
Claim 11
Dependent Claim
15 words
The system of claim 8, including jack screw means engaging said adjustable idler roller supports.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |