Patent US3870140A successfully refreshed from Google Patents.
US3870140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding device for a carton forming machine
Assignee: Bobst Mex SA
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Filing: 1973-01-23
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Granted: 1975-03-11
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Expires: 1993-01-23
Abstract
Abstract A conveyor for conveying box blanks in a carton forming machine has a plurality of endless conveyor belts supported in side-byside relationship, with some of the belts being mounted on carriages for horizontal movement away from other belts, to facilitate removal and replacement of the belts. A belt is removed by being slipped axially from its supporting pulleys. A detachable drive shaft is connected with all of the conveyor belts.
Inventors
- 👤 Louis Wieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/02; B65H5/021; B65G; B65G39/00; B65G39/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
In conveyor apparatus having a plurality of endless conveyor belts mounted in side-by-side relationship with the upper reaches of said belts defining a horizontal surface, the combination comprising: a separate supporting carriage for one of said conveyor belts, said carriage comprising first and second side walls fixed in relationship to each other, a plurality of pulleys extending between said side walls for supporting one of said belts therebetween, means for supporting said first side wall for horizontal sliding movement away from an adjacent conveyor belt, said second side wall being supported by said first side wall and having a perimeter less than the perimeter of said belt, whereby said belt may be removed by being slipped from said pulleys and over said second side wall, and means for driving said conveyor belts including a detachable drive connection.
Claim 2
Dependent Claim
137 words
In conveyor apparatus having a plurality of endless conveyor belts mounted in side-by-side relationship with the upper reaches of said belts defining a horizontal surface, the combination comprising: a separate supporting carriage for one of said conveyor belts, said carriage comprising first and second side walls fixed in relationship to each other, a plurality of pulleys extending between said side walls for supporting one of said belts therebetween, means for supporting said first side wall for horizontal sliding movement away from an adjacent conveyor belt, said second side wall being supported by said first side wall and having a perimeter less than the perimeter of said belt, whereby said belt may be removed by being slipped from said pulleys and over said second side wall, and means for driving said conveyor belts including a detachable drive connection.
Claim 3
Dependent Claim
137 words
In conveyor apparatus having a plurality of endless conveyor belts mounted in side-by-side relationship with the upper reaches of said belts defining a horizontal surface, the combination comprising: a separate supporting carriage for one of said conveyor belts, said carriage comprising first and second side walls fixed in relationship to each other, a plurality of pulleys extending between said side walls for supporting one of said belts therebetween, means for supporting said first side wall for horizontal sliding movement away from an adjacent conveyor belt, said second side wall being supported by said first side wall and having a perimeter less than the perimeter of said belt, whereby said belt may be removed by being slipped from said pulleys and over said second side wall, and means for driving said conveyor belts including a detachable drive connection.
Claim 4
Dependent Claim
137 words
In conveyor apparatus having a plurality of endless conveyor belts mounted in side-by-side relationship with the upper reaches of said belts defining a horizontal surface, the combination comprising: a separate supporting carriage for one of said conveyor belts, said carriage comprising first and second side walls fixed in relationship to each other, a plurality of pulleys extending between said side walls for supporting one of said belts therebetween, means for supporting said first side wall for horizontal sliding movement away from an adjacent conveyor belt, said second side wall being supported by said first side wall and having a perimeter less than the perimeter of said belt, whereby said belt may be removed by being slipped from said pulleys and over said second side wall, and means for driving said conveyor belts including a detachable drive connection.
Claim 5
Dependent Claim
37 words
Apparatus according to claim 1, wherein one of said pulleys supports said endless belt where said belt makes a loop around said pulley, and adjustable means for adjustably mounting said one pulley relative to said side walls.
Claim 6
Dependent Claim
178 words
In a conveyor apparatus having a conveyor defining a horizontal conveying surface, the combination comprising: a plurality of pairs of side walls, each pair comprising first and second side walls fixed in relationship to each other, a plurality of endless belts each disposed in side-by-side relationship between said first and second side walls of an individual pair of side wallS, a plurality of pulleys for supporting each of said belts, said pulleys extending between the side walls of an individual pair of side walls, said second side wall of each pair being supported by said first side wall and having a perimeter less than that of one of said belts, whereby one of said belts may be removed by being slipped from the pulleys and over said second side wall detachable means for driving said conveyor belt including a drive shaft for each of said belts disposed in coaxial relation, a single beam disposed in parallel relationship with the axes of said drive shafts, and supporting means for supporting the pulleys of each belt independently on said beam.
Claim 7
Dependent Claim
178 words
In a conveyor apparatus having a conveyor defining a horizontal conveying surface, the combination comprising: a plurality of pairs of side walls, each pair comprising first and second side walls fixed in relationship to each other, a plurality of endless belts each disposed in side-by-side relationship between said first and second side walls of an individual pair of side wallS, a plurality of pulleys for supporting each of said belts, said pulleys extending between the side walls of an individual pair of side walls, said second side wall of each pair being supported by said first side wall and having a perimeter less than that of one of said belts, whereby one of said belts may be removed by being slipped from the pulleys and over said second side wall detachable means for driving said conveyor belt including a drive shaft for each of said belts disposed in coaxial relation, a single beam disposed in parallel relationship with the axes of said drive shafts, and supporting means for supporting the pulleys of each belt independently on said beam.
Claim 8
Dependent Claim
18 words
Apparatus according to claim 3, including means for sliding said supporting means for one belt along said beam.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |