US3881585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self levelling conveyor stop
Assignee: Acme Steel Co
•
Filing: 1973-03-30
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Granted: 1975-05-06
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Expires: 1993-03-30
Abstract
Abstract A self levelling stop member for arresting the movement of articles at the end of a conveyor includes a tiltable member pivotally mounted in the path of movement of the article and having a surface thereon which pivots between a first position in which the surface is positioned at an angle to the direction of movement of and in the path of the articles and a second position wherein the surface progressively and frictionally contacts the bottom of the articles to arrest their movement.
Inventors
- 👤 Bestor P Coleman
- 👤 Kennedy Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:50
CPC Classifications
B; B65; B65G; B65G13/00; B65G13/075
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
176 words
A stop member for arresting the movement of an article on a conveyor comprising: a movable arresting member having a substantially flat surface thereon of substantial area, said movable member adapted to be engaged by the article, mounting means for movably mounting said movable member in the path of movement of the article, said mounting means including pivot means pivotally mounting said movable member intermediate the length of its surface at a location spaced substantially from the ends thereof, said movable member and said surface being pivotally movable about said pivot means betweEn a first position in which said surface is disposed at an angle to and in the path of movement of the article and a second position substantially simultaneously with engagement of the article with said surface, wherein substantially the entire flat area of said surface frictionally engages a portion of the article in said second position and elevates said portion above the path of movement of said portion before said portion engaged said surface, whereby the movement of the article is substantially arrested.
Claim 2
Dependent Claim
176 words
A stop member for arresting the movement of an article on a conveyor comprising: a movable arresting member having a substantially flat surface thereon of substantial area, said movable member adapted to be engaged by the article, mounting means for movably mounting said movable member in the path of movement of the article, said mounting means including pivot means pivotally mounting said movable member intermediate the length of its surface at a location spaced substantially from the ends thereof, said movable member and said surface being pivotally movable about said pivot means betweEn a first position in which said surface is disposed at an angle to and in the path of movement of the article and a second position substantially simultaneously with engagement of the article with said surface, wherein substantially the entire flat area of said surface frictionally engages a portion of the article in said second position and elevates said portion above the path of movement of said portion before said portion engaged said surface, whereby the movement of the article is substantially arrested.
Claim 3
Dependent Claim
26 words
The stop member of claim 1 including pivot stop means for limiting the pivotal movement of said movable member substantially between said first and second positions.
Claim 4
Dependent Claim
22 words
The stop member of claim 1 including fixed stop means beyond said movable member in the path of movement of the articles.
Claim 5
Dependent Claim
21 words
The stop member of claim 1 including mounting means for mounting said movable member to a conveyor for conveying the articles.
Claim 6
Dependent Claim
21 words
The stop member of claim 1 including bracket means, said mounting means pivotally mounting said movable member to said bracket means.
Claim 7
Dependent Claim
26 words
The stop member of claim 5 wherein said bracket means includes fixed stop means beyond said movable member in the path of movement of the articles.
Claim 8
Dependent Claim
73 words
The stop member of claim 6 including mounting means for mounting said bracket means to a conveyor upon which the articles are being moved, at least one of said bracket mounting means and said pivotal mounting means comprising a plurality of spaced apertures for selectively changing said angle, and said bracket mounting means includes pivot stop means for limiting the pivotal movement of said movable member substantially between said first and second positions.
Claim 9
Dependent Claim
24 words
The stop member of claim 5 including mounting means for mounting said bracket means to a conveyor upon which the articles are being moved.
Claim 10
Dependent Claim
38 words
The stop member of claim 8 wherein at least one of said bracket mounting means and said pivotal mounting means comprises a plurality of spaced apertures for selectively changing the angle of the surface at said first position.
Claim 11
Dependent Claim
31 words
The stop member of claim 8 wherein said bracket mounting means includes pivot stop means for limiting the pivotal movement of said movable member substantially between said first and second positions.
Claim 12
Dependent Claim
52 words
The stop member of claim 1 wherein said movable member pivots between said first position in which said surface is disposed at an angle to the direction of movement of the articles and said second position in which said surface is disposed substantially parallel to the direction of movement of the articles.
Claim 13
Dependent Claim
44 words
The stop member of claim 1 wherein, when said movable member and surface are moved to said second position, the portion of the article frictionally engaging said flat area of said surface is elevated by and supported upon said flat area of said surface.
Claim 14
Dependent Claim
42 words
The stop member of claim 12 wherein said pivot means is positioned to bear substantially the entire weight of the portion of the article engaging said flat area of surface when said movable member and surface are moved to said second position.
Claim 15
Dependent Claim
33 words
The stop member of claim 1 wherein said mounting means mounts said movable member for automatic movement from said second position to said first position upon disengagement of the article and said surface.
Claim 16
Dependent Claim
12 words
The stop member of claim 14 wherein said automatic movement is gravitational.
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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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |