US3853451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stripper device for molded articles
Assignee: FESCO PLASTICS Corp Inc A CORP OF
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Filing: 1973-08-31
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Granted: 1974-12-10
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Expires: 1993-08-31
Abstract
Abstract A device for stripping a molded piece part from a pair of separable die members.
Inventors
- 👤 M Bendzick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:20
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/43
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
A device for stripping a piece-part from a die set comprising a first fixed die member, a second cooperating die member moveable relative to the first member along a predetermined path, said die set in the operative position defining a mold cavity including a lip configuration, means for introducing moldable material into the mold cavity to form an article matching said cavity including said lip, a piston and cylinder assembly mounted upon said fixed die and disposed externally of the die set, said assembly having a center line disposed at an angle relative to said predetermined path and means for moving the second die member and the piston in unison whereby the piston approaches the mold cavity in the region of said lip by virtue of the angular disposition of the Assembly.
Claim 2
Independent Claim
132 words
A device for stripping a piece-part from a die set comprising a first fixed die member, a second cooperating die member moveable relative to the first member along a predetermined path, said die set in the operative position defining a mold cavity including a lip configuration, means for introducing moldable material into the mold cavity to form an article matching said cavity including said lip, a piston and cylinder assembly mounted upon said fixed die and disposed externally of the die set, said assembly having a center line disposed at an angle relative to said predetermined path and means for moving the second die member and the piston in unison whereby the piston approaches the mold cavity in the region of said lip by virtue of the angular disposition of the Assembly.
Claim 3
Dependent Claim
38 words
The device of claim 1 in which the second die member and the piston are formed with elements which cooperate to engage and maintain contact with one another while the die member and the piston move in unison.
Claim 4
Dependent Claim
34 words
The device of claim 1 in which the piston is formed with a follower terminating in an article engaging hook and the second die member is formed with a way cooperating with said follower.
Claim 5
Dependent Claim
31 words
The device of claim 1 in which the piston and cylinder assembly is provided with guide means for maintaining the piston in a predetermined phase relationship with respect to the cylinder.
Claim 6
Dependent Claim
23 words
The device of claim 1 in which the piston and cylinder assembly is disposed at an acute angle relative to said linear path.
Claim 7
Dependent Claim
94 words
A stripper device of automatically removing articles from one die member of a pair of die members which are relatively moveable along a linear path, a cylinder assembly having ram formed with a follower and a stripping hook carried by a die member, said ram being operable to reciprocate with a predetermined stroke, a second die member formed with a way cooperating with the follower, means for separating the die members and means for maintaining said follower in contact with said way whereby the stripper hook approaches the linear path during die member separation.
Claim 8
Dependent Claim
94 words
A stripper device of automatically removing articles from one die member of a pair of die members which are relatively moveable along a linear path, a cylinder assembly having ram formed with a follower and a stripping hook carried by a die member, said ram being operable to reciprocate with a predetermined stroke, a second die member formed with a way cooperating with the follower, means for separating the die members and means for maintaining said follower in contact with said way whereby the stripper hook approaches the linear path during die member separation.
References Cited (Backward Citations)
US3534443A
Cited
US3712787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |