US3690477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for handling sheet glass
Assignee: Emmaboda Glas AB
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Filing: 1971-06-21
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Granted: 1972-09-12
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Expires: 1991-06-21
Abstract
Abstract A machine for handling glass sheets by means of suction cups and provided with means facilitating removal of the sheets one by one from a pack by displacing the outermost sheet a short distance in its own plane, tilting it so that one edge thereof is detached from the surface of the next sheet while holding back said next sheet at said edge, and blowing in air behind the detached edge, thereby making possible a rapid withdrawal of sheet from the pack.
Inventors
- 👤 Leif Billy Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:23
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/068; B65G2249/00; B65G2249/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
257 words
A machine for moving glass sheets one by one from a pack of glass sheets at a pick-up station to a delivery station, comprising a frame (1), a track (2) on said frame, extending between said pick-up station and said delivery station, a carriage (4) on said track movable therealong, a slide (10) on said carriage movable in a direction perpendicular to said track, a suction head (16) movably mounted on said slide and having at least three suction cups (18, 18a) triangularly positioned on said suction head, means (19-23) on said slide for moving said suction head relative to said slide in a direction substantially perpendicular to the direction of the slide to effect displacement of the outermost glass sheet of the pack, adhered to said suction cups, in its own plane, thereby uncovering a narrow marginal area of the next glass sheet of the pack at an edge of said outermost glass sheet, and for tilting said suction head about an axis parallel to the plane of the glass sheet and perpendicular to the direction of displacement to detach said edge of said outermost glass sheet from said next glass sheet, an abutment (36) movably mounted on said frame and biased to engage the outermost glass sheet at said edge and - after said displacement - to engage said marginal portion of said next glass sheet, and a blowing nozzle (30) attached to said abutment and positioned for blowing air in behind said edge of said outermost glass sheet after said displacing and tilting movements.
Claim 2
Dependent Claim
257 words
A machine for moving glass sheets one by one from a pack of glass sheets at a pick-up station to a delivery station, comprising a frame (1), a track (2) on said frame, extending between said pick-up station and said delivery station, a carriage (4) on said track movable therealong, a slide (10) on said carriage movable in a direction perpendicular to said track, a suction head (16) movably mounted on said slide and having at least three suction cups (18, 18a) triangularly positioned on said suction head, means (19-23) on said slide for moving said suction head relative to said slide in a direction substantially perpendicular to the direction of the slide to effect displacement of the outermost glass sheet of the pack, adhered to said suction cups, in its own plane, thereby uncovering a narrow marginal area of the next glass sheet of the pack at an edge of said outermost glass sheet, and for tilting said suction head about an axis parallel to the plane of the glass sheet and perpendicular to the direction of displacement to detach said edge of said outermost glass sheet from said next glass sheet, an abutment (36) movably mounted on said frame and biased to engage the outermost glass sheet at said edge and - after said displacement - to engage said marginal portion of said next glass sheet, and a blowing nozzle (30) attached to said abutment and positioned for blowing air in behind said edge of said outermost glass sheet after said displacing and tilting movements.
Claim 3
Dependent Claim
120 words
A machine as claimed in claim 1, comprising a pair of aligned bearings mounted on said slide (10) for movement in said displacement direction, said suction head (16) being journalled in said bearings, said means for moving and tilting said suction head consisting of a bell crank lever (20) secured to said suction head, an actuator (19) connected between said slide (12) and one arm of said bell crank lever, a guide pin (21) on one side of the other arm of said bell crank lever, and means on said slide forming a guide slot (22) for said guide pin, said slot being partly straight and partly curved for guiding said suction head in its displacing and tilting actions, respectively.
Claim 4
Dependent Claim
173 words
In a sheet glass handling machine, an apparatus for removing glass sheets one by one from a pack of glass sheets without interleaving means between the sheets, said apparatus comprising a suction head (16) movably mounted on a frame (1) and having at least three suction cups (18,18a) positioned triangularly in a common plane, means (9, 15) for reciprocating said suction head towards and away from a glass sheet pack (25) to remove the glass sheets one by one adhered to its suction cups, means (19-23) for moving said suction head parallel to the glass sheet side plane and tilting it through a small angle, thereby displacing one adhered sheet (24) in its own plane and spacing one edge thereof from the next sheet of the pack, abutment means (36) movably mounted on said frame and biased for abutting the glass sheet pack at said edge, and air nozzle means (30) carried by said abutting means in position to expel a blast of compressEd air between said edge and said next glass sheet.
Claim 5
Dependent Claim
173 words
In a sheet glass handling machine, an apparatus for removing glass sheets one by one from a pack of glass sheets without interleaving means between the sheets, said apparatus comprising a suction head (16) movably mounted on a frame (1) and having at least three suction cups (18,18a) positioned triangularly in a common plane, means (9, 15) for reciprocating said suction head towards and away from a glass sheet pack (25) to remove the glass sheets one by one adhered to its suction cups, means (19-23) for moving said suction head parallel to the glass sheet side plane and tilting it through a small angle, thereby displacing one adhered sheet (24) in its own plane and spacing one edge thereof from the next sheet of the pack, abutment means (36) movably mounted on said frame and biased for abutting the glass sheet pack at said edge, and air nozzle means (30) carried by said abutting means in position to expel a blast of compressEd air between said edge and said next glass sheet.
Claim 6
Dependent Claim
179 words
In a machine having a movable suction head (16) for removing glass sheets one by one from a pack (25) positioned at the machine and consisting of glass sheets in direct contact with each other, means (19-23) for moving said suction head with the outermost glass sheet of said pack adhered thereto parallel to the main plane of said sheet, thereby displacing said sheet and uncovering an edge portion of the next sheet of said pack at one edge of said outermost sheet, and for tilting said suction head about an axis parallel with said main plane and at substantially right angles to the displacement direction, thereby detaching said edge of said outermost sheet from said next sheet, abutment means (36) movable and biased for pressing against said outermost sheet at said edge thereof and - after the displacement of said outermost sheet - against said uncovered portion of said next sheet, and a blowing nozzle (30) attached to said abutment means in position for blowing air in between said edge of said outermost sheet and said next sheet.
Claim 7
Dependent Claim
179 words
In a machine having a movable suction head (16) for removing glass sheets one by one from a pack (25) positioned at the machine and consisting of glass sheets in direct contact with each other, means (19-23) for moving said suction head with the outermost glass sheet of said pack adhered thereto parallel to the main plane of said sheet, thereby displacing said sheet and uncovering an edge portion of the next sheet of said pack at one edge of said outermost sheet, and for tilting said suction head about an axis parallel with said main plane and at substantially right angles to the displacement direction, thereby detaching said edge of said outermost sheet from said next sheet, abutment means (36) movable and biased for pressing against said outermost sheet at said edge thereof and - after the displacement of said outermost sheet - against said uncovered portion of said next sheet, and a blowing nozzle (30) attached to said abutment means in position for blowing air in between said edge of said outermost sheet and said next sheet.
References Cited (Backward Citations)
US2049850A
Cited
GB934463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |