Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
In apparatus for erecting tubular carton blanks which are flat folded and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, at least one suction cup, a support on each side of said suction cup, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.
Claim 2
Dependent Claim
166 words
In apparatus for erecting tubular carton blanks which are flat folded and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, at least one suction cup, a support on each side of said suction cup, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.
Claim 3
Dependent Claim
16 words
A mechanism as in claim 1 in which one of said supports is a breaker bar.
Claim 4
Dependent Claim
31 words
A mechanism as in claim 1 in which said supports are formed by a channel shaped carrier having two spaced walls, said suction cup being mounted between said two spaced walls.
Claim 5
Dependent Claim
55 words
A mechanism as in claim 1 in which said suction cup is bellows shaped terminating in a lip lying approximately in the plane defined by said support, said cup, upon application of vacuum, grasping said second surface and collapsing within said supports to pull said second surface past said supports to bow said second surface.
Claim 6
Dependent Claim
180 words
In apparatus for erecting tubular carton blanks which are flat folded and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, at least one suction cup, a support on each side of said suction cup, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup, said suction cup and supports remaining in a substantially fixed relationship to each other.
Claim 7
Dependent Claim
180 words
In apparatus for erecting tubular carton blanks which are flat folded and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, at least one suction cup, a support on each side of said suction cup, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup, said suction cup and supports remaining in a substantially fixed relationship to each other.
Claim 8
Dependent Claim
180 words
Apparatus for erecting tubular carton blanks which are flat folded and have a first flat surface on one side and a second surface on the other side, the apparatus comprising, a magazine for supporting a plurality of said carton blanks, a channel-shaped carrier having two spaced walls and a suction cup mounted in said carrier between said two spaced walls, means for moving said carrier adjacent said magazine to a position against the second surface of a flat folded carton blank with said carrier walls in engagement with said surface of said blank inboard of the edges of said blank, said carrier walls having edges lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank and movable away from the plane of said wall edges upon application of vacuum to said cup to pull said second surface past the plane of said wall edges and thereby bow the surface of said blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.
Claim 9
Dependent Claim
180 words
Apparatus for erecting tubular carton blanks which are flat folded and have a first flat surface on one side and a second surface on the other side, the apparatus comprising, a magazine for supporting a plurality of said carton blanks, a channel-shaped carrier having two spaced walls and a suction cup mounted in said carrier between said two spaced walls, means for moving said carrier adjacent said magazine to a position against the second surface of a flat folded carton blank with said carrier walls in engagement with said surface of said blank inboard of the edges of said blank, said carrier walls having edges lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank and movable away from the plane of said wall edges upon application of vacuum to said cup to pull said second surface past the plane of said wall edges and thereby bow the surface of said blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.
Claim 10
Dependent Claim
34 words
Apparatus according to claim 6 further comprising, means for moving said carrier past breaker means to complete the erecting of the carton and to place said carton between transport lugs of a transport conveyor.
Claim 11
Dependent Claim
185 words
In apparatus for erecting tubular carton blanks which are flat folded on transverse fold lines and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, a pair of longitudinally spaced supports, at least one suction cup located in substantially fixed relation to said supports and presenting a single cup width in a longitudinal direction, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.
Claim 12
Dependent Claim
185 words
In apparatus for erecting tubular carton blanks which are flat folded on transverse fold lines and have a first surface on one side and a second surface on the other side, a mechanism for partially opening said flat folded blank comprising, a pair of longitudinally spaced supports, at least one suction cup located in substantially fixed relation to said supports and presenting a single cup width in a longitudinal direction, means for positioning said cup and supports against the second surface of a flat folded carton blank with said supports in engagement with said surface of said blank inboard of the edges of said blank, said supports having carton engaging surfaces lying in a plane, said cup having a lip normally located approximately in said plane and engageable with a carton blank surface and movable away from the plane of said supports upon application of vacuum to said cup to pull said second surface past the plane of said supports and thereby bow the surface of the blank engaged by said cup to partially open said blank, and means for applying vacuum to said cup.