US3662873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor system
Assignee: FKI Industries Inc
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Filing: 1970-04-22
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Granted: 1972-05-16
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Expires: 1990-04-22
Abstract
Abstract A conveyor system including a first load supporting track and a second load supporting track with an intermediate transfer portion. A powered conveyor is provided in association with each of the first and second tracks. A plurality of carriers are provided. Each of the carriers has a first dog that is in position for normal engagement with the pusher member of the conveyor and a second dog that is normally urged to an operative carrier pushing position but is held by the track out of operative position. At a transfer point a portion of the track is cut away for a distance sufficient to permit the second dog to move to operative carrier transferring position. Beyond the transfer point, a portion of the track is again cut away to permit the second dog to be cammed downwardly out of operative position.
Inventors
- 👤 Ivan L Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:42
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/025
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
324 words
In a conveyor system, the combination comprising means defining a first load supporting track, a first conveyor having a portion thereof adjacent said track and including longitudinally spaced pusher members, a plurality of carriers for movement along said track, each said carrier having a first pusher dog, each said carrier having a second pusher dog, said second pusher dog being movable to and from operative position where it may be engaged by a pusher member on the conveyor, said second pusher dog being urged upwardly into operative position, generally horizontal portions of said track extending toward and overlying a portion of said second pusher dog to engage said second pusher dog and hold said second pusher dog in inoperative position, said second pusher dog being within the vertical confines of said track when held in inoperative position, a second load supporting track, means for guiding said carrier between said first and second load supporting tracks, said generally horizontal portions of said track in advance of the area of said guiding means extending toward said second pusher dog a lesser distance and thereby permitting said second pusher dog to move upwardly in position for engagement with a pusher member of the conveyor whereby when a carrier is moved to said guiding means, a pusher member of said conveyor becomes disengaged from said first dog and a succeeding pusher member engages said second dog to push said carrier between said load supporting tracks, said generally horizontal portiOns of said track extending toward and overlying a portion of said second pusher dog in the area of said guiding means, said generally horizontal portions of said track beyond said guiding means extending toward said second pusher dog a lesser distance, and means at said last-mentioned area beyond said guiding means engaging said secondary dog and moving said dog downwardly out of the path of the pusher members and into engagement with the generally horizontal portions of said track.
Claim 2
Dependent Claim
324 words
In a conveyor system, the combination comprising means defining a first load supporting track, a first conveyor having a portion thereof adjacent said track and including longitudinally spaced pusher members, a plurality of carriers for movement along said track, each said carrier having a first pusher dog, each said carrier having a second pusher dog, said second pusher dog being movable to and from operative position where it may be engaged by a pusher member on the conveyor, said second pusher dog being urged upwardly into operative position, generally horizontal portions of said track extending toward and overlying a portion of said second pusher dog to engage said second pusher dog and hold said second pusher dog in inoperative position, said second pusher dog being within the vertical confines of said track when held in inoperative position, a second load supporting track, means for guiding said carrier between said first and second load supporting tracks, said generally horizontal portions of said track in advance of the area of said guiding means extending toward said second pusher dog a lesser distance and thereby permitting said second pusher dog to move upwardly in position for engagement with a pusher member of the conveyor whereby when a carrier is moved to said guiding means, a pusher member of said conveyor becomes disengaged from said first dog and a succeeding pusher member engages said second dog to push said carrier between said load supporting tracks, said generally horizontal portiOns of said track extending toward and overlying a portion of said second pusher dog in the area of said guiding means, said generally horizontal portions of said track beyond said guiding means extending toward said second pusher dog a lesser distance, and means at said last-mentioned area beyond said guiding means engaging said secondary dog and moving said dog downwardly out of the path of the pusher members and into engagement with the generally horizontal portions of said track.
Claim 3
Dependent Claim
31 words
The combination set forth in claim 1 including a second conveyor movable along said second track for engaging a dog of said carrier to move said carrier along said second track.
Claim 4
Dependent Claim
44 words
The combination set forth in claim 1 wherein said track comprises spaced channels having horizontally extending flanges, the flanges of said channels extending inwardly toward one another and normally overlying and engaging said portion of said second dog to hold it in inoperative position.
Claim 5
Dependent Claim
33 words
The combination set forth in claim 1 wherein said carrier comprises a plurality of trolleys, said first pusher dog being on the foremost trolley, said second pusher dog being on a succeeding trolley.
Claim 6
Dependent Claim
36 words
The combination set forth in claim 1 wherein said second pusher dog is pivoted to said carrier and is counterweighted so that it normally is urged into the path of said pusher members on said conveyor.
Claim 7
Dependent Claim
40 words
The combination set forth in claim 1 wherein said second pusher dog comprises a portion of an element pivoted to the carrier and counterweighted so that the dog is normally in the path of the pusher members on the conveyor.
Claim 8
Dependent Claim
28 words
The combination set forth in claim 1 wherein said last-mentioned means comprises portions of said track extending into the path of said portion of said second pusher dog.
Claim 9
Dependent Claim
24 words
The combination set forth in claim 3 wherein said last-mentioned means for moving said second dog comprises portions of said flanges of said track.
Claim 10
Dependent Claim
276 words
In a conveyor system, the combination comprising means defining a first overhead load supporting track, a first conveyor having a portion thereof adjacent said track and including longitudinally spaced pusher members, a plurality of carriers for movement along said track, each said carrier having a first pusher dog, each said carrier having a second pusher dog, said second pusher dog being movable to and from position where it may be engaged by a pusher member on the conveyor, said second pusher dog being biased upwardly into operative position, generally horizontal portions of said track extending toward and overlying a portion of said second pusher dog to engage said second pusher dog and hold said second pusher dog in inoperative position, said second pusher dog being within the vertical confines of said track when held in inoperative position, a second overhead load supporting track, overhead means for guiding said carrier between said first and second load supporting tracks, said generally horizontal portions of said track in the area of said last-mentioned means being cut away to extend toward said second pusher dog a lesser distance and thereby permit said second pusher dog to move upwardly in position for engagement with a pusher member of the conveyor whereby when a carrier is moved to said guiding means, a pusher member of said conveyor becomes disengaged from said first pusher dog and a succeeding pusher member engages said second pusher dog to push said carrier between said load supporting tracks, said track having portions thereof beyond said guiding means disengaged from said secondary pusher dog to permit said dog to be moved downwardly into engaged relation with said track.
Claim 11
Dependent Claim
276 words
In a conveyor system, the combination comprising means defining a first overhead load supporting track, a first conveyor having a portion thereof adjacent said track and including longitudinally spaced pusher members, a plurality of carriers for movement along said track, each said carrier having a first pusher dog, each said carrier having a second pusher dog, said second pusher dog being movable to and from position where it may be engaged by a pusher member on the conveyor, said second pusher dog being biased upwardly into operative position, generally horizontal portions of said track extending toward and overlying a portion of said second pusher dog to engage said second pusher dog and hold said second pusher dog in inoperative position, said second pusher dog being within the vertical confines of said track when held in inoperative position, a second overhead load supporting track, overhead means for guiding said carrier between said first and second load supporting tracks, said generally horizontal portions of said track in the area of said last-mentioned means being cut away to extend toward said second pusher dog a lesser distance and thereby permit said second pusher dog to move upwardly in position for engagement with a pusher member of the conveyor whereby when a carrier is moved to said guiding means, a pusher member of said conveyor becomes disengaged from said first pusher dog and a succeeding pusher member engages said second pusher dog to push said carrier between said load supporting tracks, said track having portions thereof beyond said guiding means disengaged from said secondary pusher dog to permit said dog to be moved downwardly into engaged relation with said track.
Claim 12
Dependent Claim
50 words
The combination set forth in claim 9 wherein said track comprises spaced inwardly facing C-shaped channels having horizontally extending flanges, the upper flanges of said channels normally overlying and engaging said portion of said second dog to hold said dog in a position out of eNgagement by said pusher member.
Claim 13
Dependent Claim
28 words
The combination set forth in claim 9 wherein said last-mentioned means comprises portions of said track extending into the path of said portion of said second pusher dog.
Claim 14
Dependent Claim
24 words
The combination set forth in claim 9 wherein said last-mentioned means for moving said second dog comprises portions of said flanges of said track.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |