US3593841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Idler roller actuating device
Assignee: United States Steel Corp
•
Filing: 1969-11-03
•
Granted: 1971-07-20
•
Expires: 1989-11-03
Abstract
Abstract An idler roller actuating device for a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on the conveyor frame, and a belt passing over the idler roller and having a normal operating position is disclosed. The idler roller actuating device is disposed adjacent one side of the belt and has a pivot member pivotable on the conveyor frame; a sensing arm affixed to the pivot member had having a sensing arm free end; a sensing member mounted on the sensing arm free end of the sensing arm adjacent the one side of the belt; a first tension member affixed to the pivot member and having a first tension member free end; and a second tension member affixed to the roller frame and having a second tension member free end pivotably connected to the first tension member free end. The sensing member is engageable with the one side of the belt when the belt moves away from the normal operating position and toward the one side of the belt to rotate the sensing member and the sensing arm in one direction of a counterclockwise direction and a clockwise direction. The first tension member and the second tension member are operable by the rotation of the sensing member and the sensing arm to rotate the roller frame and the idler roller in the other direction of the counterclockwise direction and the clockwise direction so that the idler roller reverses the movement of the belt away from the normal operating position and returns the belt to the normal operating position.
Inventors
- 👤 Carl D Leow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:43
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/10; B65G39/12; B65G39/16
Claims Analysis
Total Claims: 76
Claim 1
Independent Claim
258 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, an idler roller actuating device disposed adjacent one side of said belt and having: a. a pivot member pivotable on said conveyor frame; b. a sensing arm affixed to said pivot member and having a sensing arm free end; c. a sensing member mounted on said sensing arm free end adjacent said one side of said belt; d. a first tension member affixed to said pivot member and having a first tension mEmber free end; and e. a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end; f. said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and g. said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 2
Dependent Claim
258 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, an idler roller actuating device disposed adjacent one side of said belt and having: a. a pivot member pivotable on said conveyor frame; b. a sensing arm affixed to said pivot member and having a sensing arm free end; c. a sensing member mounted on said sensing arm free end adjacent said one side of said belt; d. a first tension member affixed to said pivot member and having a first tension mEmber free end; and e. a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end; f. said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and g. said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 3
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 4
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 5
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 6
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 7
Dependent Claim
28 words
The idler roller actuating device recited in claim 1 and having a support member affixed to said conveyor frame and said pivot member pivotable on said support member.
Claim 8
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 9
Dependent Claim
15 words
a sensing arm affixed to said pivot member and having a sensing arm free end;
Claim 10
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 11
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 12
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 13
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 14
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 15
Dependent Claim
17 words
a sensing member mounted on said sensing arm free end adjacent said one side of said belt;
Claim 16
Dependent Claim
41 words
The idler roller actuating device recited in claim 1 wherein said roller frame has an idler roller centerline, said belt has a belt centerline and said normal operating position has said belt centerline disposed in alignment with said idler roller centerline.
Claim 17
Dependent Claim
17 words
The idler roller actuating device recited in claim 1 wherein said sensing member is a movable member.
Claim 18
Dependent Claim
18 words
a first tension member affixed to said pivot member and having a first tension member free end; and
Claim 19
Dependent Claim
18 words
a first tension member affixed to said pivot member and having a first tension member free end; and
Claim 20
Dependent Claim
18 words
a first tension member affixed to said pivot member and having a first tension member free end; and
Claim 21
Dependent Claim
18 words
a first tension member affixed to said pivot member and having a first tension member free end; and
Claim 22
Dependent Claim
17 words
a first tension member affixed to said pivot member and having a first tension member free end;
Claim 23
Dependent Claim
17 words
a first tension member affixed to said pivot member and having a first tension member free end;
Claim 24
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 25
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 26
Dependent Claim
17 words
The idler roller actuating device recited in claim 1 wherein said sensing member is a fixed member.
Claim 27
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 28
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 29
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 30
Dependent Claim
26 words
a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end;
Claim 31
Dependent Claim
52 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counter clockwise direction and a clockwise direction; and
Claim 32
Dependent Claim
52 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counter clockwise direction and a clockwise direction; and
Claim 33
Dependent Claim
51 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and
Claim 34
Dependent Claim
51 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and
Claim 35
Dependent Claim
16 words
The idler roller actuating device recited in claim 1 wherein said sensing member is a shoe.
Claim 36
Dependent Claim
51 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and
Claim 37
Dependent Claim
51 words
said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing arm in one direction of a counterclockwise direction and a clockwise direction; and
Claim 38
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 39
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 40
Dependent Claim
27 words
The idler roller actuating device recited in claim 1 wherein said sensing member is spaced from said belt when said belt is in said normal operating position.
Claim 41
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counteRclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 42
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counteRclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 43
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 44
Dependent Claim
69 words
said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing arm to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 45
Dependent Claim
25 words
The idler roller actuating device recited in claim 1 wherein said sensing member engages said belt when said belt is in said normal operating position.
Claim 46
Dependent Claim
15 words
The idler roller actuating device recited in claim 1 wherein said one direction is clockwise.
Claim 47
Dependent Claim
15 words
The idler roller actuating device recited in claim 1 wherein said one direction is counterclockwise.
Claim 48
Dependent Claim
16 words
The idler roller actuating device recited in claim 1 wherein said first tension member is positionable.
Claim 49
Dependent Claim
16 words
The idler roller actuating device recited in claim 1 wherein said second tension member is positionable.
Claim 50
Dependent Claim
18 words
The idler roller actuating device recited in claim 11 wherein said positionable first tension member is a turnbuckle.
Claim 51
Dependent Claim
20 words
The idler roller actuating device recited in claim 11 wherein said positionable first tension member is an apertured strip member.
Claim 52
Dependent Claim
26 words
The idler roller actuating device recited in claim 11 wherein said positionable first tension member is a threaded rod having a connector on each end thereof.
Claim 53
Dependent Claim
18 words
The idler roller actuating device recited in claim 11 wherein said positionable first tension member is a spring.
Claim 54
Dependent Claim
18 words
The idler roller actuating device recited in claim 12 wherein said positionable second tension member is a turnbuckle.
Claim 55
Dependent Claim
18 words
The idler roller actuating device recited in claim 12 wherein said positionable second tension member is a spring.
Claim 56
Dependent Claim
20 words
The idler roller actuating device recited in claim 12 wherein said positionable second tension member is an apertured strip member.
Claim 57
Dependent Claim
26 words
The idler roller actuating device recited in claim 12 wherein said positionable second tension member is a threaded rod having a connector on each end thereof.
Claim 58
Dependent Claim
28 words
The idler roller actuating device recited in claim 1 wherein said roller frame has a connection member, and said second tension member is connected to said connection member.
Claim 59
Dependent Claim
28 words
The idler roller actuating device recited in claim 21 wherein said connection member is provided with a plurality of apertures for connection of said second tension member thereto.
Claim 60
Dependent Claim
36 words
The idler roller actuating device recited in claim 21 wherein said connection member is provided with a slot and has a connector bloCk affixed to said connection member for connection of said second tension member thereto.
Claim 61
Dependent Claim
30 words
The idler roller actuating device recited in claim 1 wherein said idler roller has a central portion and an outer troughing portion inclined at an angle to said central portion.
Claim 62
Dependent Claim
32 words
The idler roller actuating device recited in claim 1 wherein said idler roller has a central portion and an outer portion which is a substantially straight line continuation of said central portion.
Claim 63
Dependent Claim
31 words
The idler roller actuating device recited in claim 1 wherein said pivot member has a post member affixed to said conveyor frame and a sleeve member pivotable on said post member.
Claim 64
Dependent Claim
31 words
The idler roller actuating device recited in claim 1 wherein said pivot member has a sleeve member affixed to said conveyor frame and a post member pivotable in said sleeve member.
Claim 65
Dependent Claim
50 words
In combination: a. a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler and having a normal operating position, and b. an idler roller actuating device disposed adjacent one side of said belt and having:
Claim 66
Dependent Claim
50 words
In combination: a. a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler and having a normal operating position, and b. an idler roller actuating device disposed adjacent one side of said belt and having:
Claim 67
Dependent Claim
78 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, a. a first idler roller actuating device disposed adjacent one side of said belt, b. a second idler roller actuating device disposed adjacent the other side of said belt, c. each of said first idler roller actuating device and said second roller actuating device having:
Claim 68
Dependent Claim
78 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, a. a first idler roller actuating device disposed adjacent one side of said belt, b. a second idler roller actuating device disposed adjacent the other side of said belt, c. each of said first idler roller actuating device and said second roller actuating device having:
Claim 69
Dependent Claim
82 words
In combination: a. a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, b. a first idler roller actuating device disposed adjacent one side of said belt, and c. a second idler roller actuating device disposed adjacent the other side of said belt, d. each of said first idler roller actuating device and said second idler roller actuating device having:
Claim 70
Dependent Claim
82 words
In combination: a. a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, b. a first idler roller actuating device disposed adjacent one side of said belt, and c. a second idler roller actuating device disposed adjacent the other side of said belt, d. each of said first idler roller actuating device and said second idler roller actuating device having:
Claim 71
Dependent Claim
282 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, an idler roller actuating device disposed adjacent one side of said belt and having: a. a pivot member pivotable on said conveyor frame, b. one member of a first tension member having a first tension member free end and a sensing arm having a sensing arm free end affixed to said pivot member, c. a mounting member affixed to said one member, d. the other member of said first tension member and said sensing arm mounted on said mounting member, e. a sensing member mounted on said sensing arm free end adjacent said one side of said belt, f. a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end, g. said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing mounting member in one direction of a counterclockwise direction and a clockwise direction, and h. said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing mounting member to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 72
Dependent Claim
282 words
For a conveyor having a conveyor frame, an idler roller having a roller frame pivotable on said conveyor frame, and a belt passing over said idler roller and having a normal operating position, an idler roller actuating device disposed adjacent one side of said belt and having: a. a pivot member pivotable on said conveyor frame, b. one member of a first tension member having a first tension member free end and a sensing arm having a sensing arm free end affixed to said pivot member, c. a mounting member affixed to said one member, d. the other member of said first tension member and said sensing arm mounted on said mounting member, e. a sensing member mounted on said sensing arm free end adjacent said one side of said belt, f. a second tension member affixed to said roller frame and having a second tension member free end pivotably connected to said first tension member free end, g. said sensing member being engageable with said one side of said belt when said belt moves away from said normal operating position and toward said one side of said belt to rotate said sensing member and said sensing mounting member in one direction of a counterclockwise direction and a clockwise direction, and h. said first tension member and said second tension member being operable by said rotation of said sensing member and said sensing mounting member to rotate said roller frame and said idler roller in the other direction of said counterclockwise direction and said clockwise direction so that said idler roller reverses said movement of said belt away from said normal operating position and returns said belt to said normal operating position.
Claim 73
Dependent Claim
18 words
The idler roller actuating device recited in claim 31 wherein said one member is said first tension member.
Claim 74
Dependent Claim
17 words
The idler roller actuating device recited in claim 31 wherein said one member is said sensing arm.
Claim 75
Dependent Claim
18 words
The idler roller actuating device recited in claim 11 wherein said positionable first tension member is a chain.
Claim 76
Dependent Claim
18 words
The idler roller actuating device recited in claim 12 wherein said positionable second tension member is a chain.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |