Patent EP0066941A1 successfully refreshed from Google Patents.
EP0066941A1
Expired / Lapsed
EP
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A skin packaging machine with inclined oven
Assignee: Nordson Corp
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Filing: 1982-04-08
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Granted: —
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Expires: 2002-04-08
Abstract
Abstract A skin packaging machine ( 1 0) having a base (11), an inclined oven (16) above the base, and a film frame (20) pivoted to swing between positions adjacent the base and the inclined oven. The oven may have transverse elongated heating elements closely spaced at the lower end and widely spaced at the upper end to provide uniform heat across the surface of the oven. The frame (20) may have a pneumatic system for swinging it between its upper and lower positions in order to minimise the possibility of injury.
Inventors
- 👤 Alexander Hollingsworth
- 👤 Ridley Watts, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/50; B65B11/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A skin packaging machine having a substantially horizontal porous base surface to receive a porous board and an article to be packaged, an oven mounted above the base surface and having a downwardly facing opening through which heat from heating elements can be directed characterised in that the opening (18) is inclined both to the horizontal and vertical and in that a frame (20) which is adapted to carry a film; is pivotally mounted for movement between a position adjacent the horizontal base (11) and a position adjacent the opening (18) of the oven (16).
Claim 2
Dependent Claim
95 words
A skin packaging machine having a substantially horizontal porous base surface to receive a porous board and an article to be packaged, an oven mounted above the base surface and having a downwardly facing opening through which heat from heating elements can be directed characterised in that the opening (18) is inclined both to the horizontal and vertical and in that a frame (20) which is adapted to carry a film; is pivotally mounted for movement between a position adjacent the horizontal base (11) and a position adjacent the opening (18) of the oven (16).
Claim 3
Dependent Claim
43 words
A packaging machine as claimed in Claim 1 having means to mount a supply roll (34) of film above and adjacent to the oven (16) the film being enabled to be fed into the frame (20) adjacent the pivoted end of the frame.
Claim 4
Dependent Claim
54 words
A packaging machine as claimed in either Claim 1 or 2 wherein the pivot axis (29) of the frame (20) is positioned well to the rear of the porous base surface (15) and of the oven (16) to minimise the angle through which the frame swings and the angle of inclination of the oven.
Claim 5
Dependent Claim
29 words
4,. A packaging machine as claimed in any of the preceding claims in which the oven opening (18) is positioned at an angle of about 40° to the horizontal.
Claim 6
Dependent Claim
53 words
A packaging machine as claimed in any of the preceding claims wherein the oven (16) is provided with a number of horizontal elongated parallel disposed heating elements (65), the heating elements being spaced apart by gradually increasing distances from the relatively lower end to the relatively upper end of the inclined oven (16).
Claim 7
Dependent Claim
24 words
A packaging machine as claimed in any one of the preceding claims wherein a pneumatic spring is connected between the base and the frame.
Claim 8
Dependent Claim
58 words
A packaging machine as claimed in Claim 6 wherein the pneumatic spring (75) is mounted so as to swing through an over centre position to urge the frame (20) in an upward direction on one side of the over centre position and to urge the frame against the base on the other side of the over centre position.
Claim 9
Dependent Claim
102 words
A packaging machine as claimed in any one of Claims 1 to 5 having a pneumatic system for raising and lowering the frame comprising a cylinder and piston combination (40) connected between the base (15) and frame (20), the cylinder (41) being connected to a source of pressurised air (51), valve means being provided selectively to connect the source (51) of pressurised air to both sides of the piston (42) to extend the piston rod (43) to lower the frame towards the base and to the piston rod side of the piston to retract the piston rod (43) to raise the frame.
Claim 10
Dependent Claim
123 words
A packaging machine as claimed in Claim 8 wherein the valve means comprises a first valve and tubing connected to both ends of the cylinder, a second valve and tubing connected on one side between said first valve and the piston end of the cylinder and on the other side to atmosphere, the air source being connected between the first valve and the rod end of the cylinder, whereby closing the second valve and opening the first valve will apply air under pressure to both sides of said piston to cause said ram to extend; closing of said first valve and opening said second valve will cause said ram to retract; and closing of both valves will cause said ram to stop movement.
Claim 11
Dependent Claim
38 words
A packaging machine as claimed in Claim 9 wherein a flow control unit is connected at one side to the rod end of the cylinder and at the other side between the air source and the first valve.
References Cited (Backward Citations)
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