US3807583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloading structure for a parison oven and method
Assignee: Deacon Machinery Inc
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Filing: 1971-12-17
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Granted: 1974-04-30
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Expires: 1991-12-17
Abstract
Abstract An oven for heating parisons including a parison drive structure, a parison carrying structure in driving relation with said driving structure, and an unloading structure for removing parisons. The unloading structure includes a pair of rails inclined relative to the parison carrying structure. A pair of rigid members are secured to a stationary portion of the oven. The rigid members are arranged to allow the parison carrying structure to pass therethrough, and the rigid members are arranged to engage any parisons carried thereon. The parisons are unseated upon engagement with the rigid structures allowing the parison to move onto the rails. The parison drive structure moves the parisons up the inclined rails, thereby disengaging the parisons from the carrying structure. The unloaded parisons are then removed from the oven.
Inventors
- 👤 L Mauger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:36
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/64; B29C49/68; B29C2949/00; B29C2949/07; B29C2949/079; B29C2949/08; B29K; B29K2105/00; B29K2105/25; B29K2105/253; B29K2105/258
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
110 words
A device for removing plastic parisons from a heating oven comprising in combination, a parison carrying structure, means driving said carrying structure through said oven along a predetermined path, a track structure mounted in inclined relationship to said carrying structure with its leading edge in close proximity to said carrying structure, and means for tilting a parison, said means having a parison engaging portion located intermediate the ends of the parison and positioned in advance of the track structure for engaging the parison intermediate its ends to lift its forward bottom edge from the carrying structure whereby to facilitate movement of the bottom of the parison onto the track structure.
Claim 2
Independent Claim
110 words
A device for removing plastic parisons from a heating oven comprising in combination, a parison carrying structure, means driving said carrying structure through said oven along a predetermined path, a track structure mounted in inclined relationship to said carrying structure with its leading edge in close proximity to said carrying structure, and means for tilting a parison, said means having a parison engaging portion located intermediate the ends of the parison and positioned in advance of the track structure for engaging the parison intermediate its ends to lift its forward bottom edge from the carrying structure whereby to facilitate movement of the bottom of the parison onto the track structure.
Claim 3
Dependent Claim
30 words
The device of claim 1 wherein the track structure comprises a pair of rails, said rails being spaced from each other to allow the parison carrying structure to pass therebetween.
Claim 4
Dependent Claim
7 words
removing the parisons from the parison oven.
Claim 5
Dependent Claim
7 words
removing the parisons from the parison oven.
Claim 6
Dependent Claim
12 words
moving the parisons from the carrying structure to an inclined removal structure,
Claim 7
Dependent Claim
12 words
moving the parisons from the carrying structure to an inclined removal structure,
Claim 8
Dependent Claim
15 words
tilting the parison so that its forward bottom edge is lifted from the carrying structure,
Claim 9
Dependent Claim
15 words
tilting the parison so that its forward bottom edge is lifted from the carrying structure,
Claim 10
Dependent Claim
35 words
The device of claim 1 wherein said track structure comprises an entrance portion and an exit portion, said portions being adjustable relative to each other, and said entrance portion being disposed adjacent said carrying structure.
Claim 11
Dependent Claim
17 words
separating the parisons from the carrying structure by moving the parisons up the inclined removal structure, and
Claim 12
Dependent Claim
17 words
separating the parisons from the carrying structure by moving the parisons up the inclined removal structure, and
Claim 13
Dependent Claim
25 words
The device of claim 1 wherein the track structure is elevated relative to said drive means and the track structure is supported from the oven.
Claim 14
Dependent Claim
83 words
The device of claim 1 wherein the track structure comprises a pair of track members, said track members being mounted in spaced relation relative to each other to allow passage of the carrying structure therebetween, each of said track members having an entrance and exit portion, each of said portions being adjustable relative to each other to allow independent positioning of each of said portions relative to each other, and said track members being rigidly supported to a stationary portion of the oven.
Claim 15
Dependent Claim
7 words
disengaging the parisons from the carrying means.
Claim 16
Dependent Claim
7 words
disengaging the parisons from the carrying means.
Claim 17
Dependent Claim
47 words
The device of claim 1, wherein said means for tilting the parison is secured to a rigid portion of the oven, said tilting means being mounted in spaced relation to the parison carrying structure and comprising a rod engageable with a parison carried by said carrying structure.
Claim 18
Dependent Claim
74 words
The device of claim 1 wherein said parison tilting means includes a pair of resilient rods projecting from the stationary portion of the oven, said rods being on opposite sides of said driving means, said rods being spaced from the driving means and the carrying structure to allow passage of the driving means and the carrying structure therebetween, said rods being inclined towards each other to engage a parison carried by said carrying means.
Claim 19
Dependent Claim
31 words
The device of claim 1 further including a wall structure, said wall structure engageable with a parison moving up said track structure to guide said parison off of said track structure.
Claim 20
Dependent Claim
22 words
The device of claim 1 further including an exit trough in communication with said track structure to remove parisons from said oven.
Claim 21
Dependent Claim
209 words
In an oven for heating plastic preform structures including carrying means to carry said preforms, means for driving said carrying means, and means to remove the preforms from said oven, said preform removal means comprising: a pair of rail members, said rail members being disposed on both sides of said driving means and in spaced relation therefrom, said rail members being inclined relative to said driving means, said rail members being supported from a stationary portion of said oven, said rail members having entrance and exit portions, said entrance portions being disposed in spaced relation to said carrying means but immediately adjacent thereto, at least one resilient rod member disposed from a stationary portion of said oven in close proximity to the entrance portion of said rail members, said rod member being in spaced relation with said driving means and said carrying means to allow passage thereby, said rod member being engageable with any said preform carried by said carrying means, to unseat said preform and allow said rail structure to engage the bottom portion of any preform seated on said carrying structure, and said driving means moving any preform seated on said carrying means up said inclined rail structure to thereby disengage the preform from the carrying means.
Claim 22
Dependent Claim
209 words
In an oven for heating plastic preform structures including carrying means to carry said preforms, means for driving said carrying means, and means to remove the preforms from said oven, said preform removal means comprising: a pair of rail members, said rail members being disposed on both sides of said driving means and in spaced relation therefrom, said rail members being inclined relative to said driving means, said rail members being supported from a stationary portion of said oven, said rail members having entrance and exit portions, said entrance portions being disposed in spaced relation to said carrying means but immediately adjacent thereto, at least one resilient rod member disposed from a stationary portion of said oven in close proximity to the entrance portion of said rail members, said rod member being in spaced relation with said driving means and said carrying means to allow passage thereby, said rod member being engageable with any said preform carried by said carrying means, to unseat said preform and allow said rail structure to engage the bottom portion of any preform seated on said carrying structure, and said driving means moving any preform seated on said carrying means up said inclined rail structure to thereby disengage the preform from the carrying means.
Claim 23
Dependent Claim
35 words
The structure recited in claim 10 further including a wall member, said wall member being engageable with any preform carried up the rail members, said wall structure directing the preforms off of said rail members.
Claim 24
Dependent Claim
30 words
The structure recited in claim 11 further including an exit trough, the wall member guiding the preforms from the rail member to said exit trough for removal from said oven.
Claim 25
Independent Claim
12 words
A method of removing parisons from an oven comprising the steps of:
Claim 26
Independent Claim
12 words
A method of removing parisons from an oven comprising the steps of:
Claim 27
Dependent Claim
11 words
The method recited in claim 13 further including the steps of:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |