US3844151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion press with die changer
Assignee: Sutton Engineering Co
•
Filing: 1973-09-17
•
Granted: 1974-10-29
•
Expires: 1993-09-17
Abstract
Abstract An extrusion press platen has a vertical rear face from which a passage extends forward through the platen. Slidable horizontally along said face is an extrusion die holder normally located in line with the passage. At one side of the holder is disposed a longitudinally movable rigid elongated member between the inner end of which and the holder there is a slide. Means are provided for moving the rigid member lengthwise to push the die holder laterally into a predetermined position at one side of the platen passage, whereupon a driven chain attached to the slide causes the slide to push the holder from that position to a second position out beyond the adjacent side of the platen, where means are provided for receiving the die holder.
Inventors
- 👤 H Huertgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:20
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/21; B21C23/212; B21C23/214
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
In an extrusion press, a platen having a vertical face and an extrusion-receiving passage perpendicular to said face, an extrusion die holder slidable horizontally along said face and normally located in line with said passage, a longitudinally movable rigid elongated member disposed at one side of said holder and extending laterally away from it, a slide engaging said side of the die holder, means for moving said member lengthwise to push said holder laterally into a predetermined position at one side of said platen passage, a chain attached to said slide and extending across said platen, means for driving the chain to cause the slide to push said holder from said predetermined position to a second position out beyond the adjacent side of said platen, and means at said side of the platen for receiving said die holder in said second position.
Claim 2
Dependent Claim
142 words
In an extrusion press, a platen having a vertical face and an extrusion-receiving passage perpendicular to said face, an extrusion die holder slidable horizontally along said face and normally located in line with said passage, a longitudinally movable rigid elongated member disposed at one side of said holder and extending laterally away from it, a slide engaging said side of the die holder, means for moving said member lengthwise to push said holder laterally into a predetermined position at one side of said platen passage, a chain attached to said slide and extending across said platen, means for driving the chain to cause the slide to push said holder from said predetermined position to a second position out beyond the adjacent side of said platen, and means at said side of the platen for receiving said die holder in said second position.
Claim 3
Dependent Claim
90 words
In an extrusion press according to claim 1, said receiving means including a table for supporting the die holder, the table extending parallel to said platen passage and being long enough to also support a similar die holder, means for moving the table parallel to said passage to move the first-mentioned die holder away from said slide and simultaneously move another die holder into line with the slide, and means for connecting the slide to a die holder on said table for pulling it back into line with said passage.
Claim 4
Dependent Claim
30 words
In an extrusion press according to claim 2, said table-moving means including a stationary fluid pressure cylinder, and a piston rod projecting from the cylinder and connected with said table.
Claim 5
Dependent Claim
72 words
In an extrusion press according to claim 1, a key extending across the end of said slide adjoining the die holder, said holder having a slot extending from front to back receiving said key to connect the holder to the slide, and said receiving means including means for moving the die holder parallel to said platen passage to slide the holder off said key to thereby disconnect the holder from said slide.
Claim 6
Dependent Claim
34 words
In an extrusion press according to claim 1, said chain being an endless chain supported by sprockets, and said chain-driving means being a reversible motor connected to one of said sprockets for turning it.
Claim 7
Dependent Claim
33 words
In an extrusion press according to claim 1, vertically spaced parallel guide members engaging the top and bottom of said die holder for guiding it as it is moved along said platen face.
Claim 8
Dependent Claim
31 words
In an extrusion press according to claim 1, a stop in the path of said slide for stopping it when the die holder reaches said second position on said receiving means.
Claim 9
Dependent Claim
26 words
In an extrusion press according to claim 1, said slide having a portion interposed between said elongated member and die holder and engageable by said member.
Claim 10
Dependent Claim
34 words
In an extrusion press according to claim 1, said elongated member being a piston rod, and said member-moving means being a stationary fluid pressure cylinder containing said rod and a piston secured to it.
Claim 11
Dependent Claim
56 words
In an extrusion press according to claim 1, said elongated member being a piston rod, and said member-moving means being a stationary fluid pressure cylinder containing said rod and a piston secured to it, said slide extending between said piston rod and die holder and also extending out along the top and bottom of said cylinder.
References Cited (Backward Citations)
US3478561A
Cited
US3630065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |