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US3800638A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for deflashing hollow bodies of plastic material

Assignee: Solvay SA
•
Filing: 1971-11-10
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Granted: 1974-04-02
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Expires: 1991-11-10
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Abstract

Abstract Apparatus for deflashing hollow bodies of plastic material including a series of gripping elements mounted on a support and moved along a path of transport to grip the necks of a succession of plastic bodies delivered to the apparatus by a conveyor, and to remove the bodies from the conveyor for further movement along the path to a position where the necks of the bodies are engaged by a cutting tool along a portion of the path of transport. Another movable element in the apparatus is positioned to engage the necks of the respective bodies as they approach the cutting tool and to impart a rotational movement to the neck of each body during the time the neck is engaged by the cutting tool.

Inventors

  • 👤 M Duikers
  • 👤 M Minsart

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 02:29
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/72; B29C49/74; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16081; Y10T82/16426; Y10T82/16967

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 242 words
Apparatus for successively removing plastic hollow bodies having a neck from a conveyor and deflashing the neck of such bodies, comprising, in combination: a. a movable support and a series of gripping elements arranged on said support for movement therewith along a path of transport going past a withdrawal point where each respective gripping element is in a position to grip externally the neck of a plastic body having a flash attached to its neck, to remove the body from the conveyor; b. fixed cutting means disposed for engaging the neck of the body along a portion of the path of transport beyond the withdrawal point; and c. movable means arranged for engaging externally the neck of the body as it is carried along the path of transport by its respective gripping element and approaches said cutting means, said movable means imparting to the body an independent movement of rotation about its longitudinal axis as the neck passes along said cutting means and in engagement therewith for cutting off the flash, said movable means being arranged for imparting to the body said movement of rotation independently from the movement along said path of transport imparted to said body by said support and said respective gripping element; and said support and said respective gripping element being arranged for imparting to the body said movement along said path of transport independently from said movement of rotation imparted to said body by said movable means.
Claim 2
Dependent Claim 242 words
Apparatus for successively removing plastic hollow bodies having a neck from a conveyor and deflashing the neck of such bodies, comprising, in combination: a. a movable support and a series of gripping elements arranged on said support for movement therewith along a path of transport going past a withdrawal point where each respective gripping element is in a position to grip externally the neck of a plastic body having a flash attached to its neck, to remove the body from the conveyor; b. fixed cutting means disposed for engaging the neck of the body along a portion of the path of transport beyond the withdrawal point; and c. movable means arranged for engaging externally the neck of the body as it is carried along the path of transport by its respective gripping element and approaches said cutting means, said movable means imparting to the body an independent movement of rotation about its longitudinal axis as the neck passes along said cutting means and in engagement therewith for cutting off the flash, said movable means being arranged for imparting to the body said movement of rotation independently from the movement along said path of transport imparted to said body by said support and said respective gripping element; and said support and said respective gripping element being arranged for imparting to the body said movement along said path of transport independently from said movement of rotation imparted to said body by said movable means.
Claim 3
Dependent Claim 25 words
Apparatus as defined in claim 1, wherein said gripping elements have surface profiles to mate with corresponding profile surfaces on the neck of the body.
Claim 4
Dependent Claim 14 words
Apparatus as defined in claim 1, wherein each respective gripping element includes hook means.
Claim 5
Dependent Claim 15 words
Apparatus as defined in claim 1, wherein said movable support is a circular plate member.
Claim 6
Dependent Claim 23 words
Apparatus as defined in claim 4, wherein said gripping elements include associated hook and roller means peripherally mounted on said circular plate member.
Claim 7
Dependent Claim 14 words
Apparatus as defined in claim 1, wherein said movable support is a chain member.
Claim 8
Dependent Claim 14 words
Apparatus as defined in claim 1, wherein said movable support is a belt member.
Claim 9
Dependent Claim 13 words
Apparatus as defined in claim 1, wherein said movable means is a belt.
Claim 10
Dependent Claim 20 words
Apparatus as defined in claim 1, wherein said movable means is a wheel with elastic material on the periphery thereof.
Claim 11
Dependent Claim 16 words
Apparatus as defined in claim 1, wherein said movable means includes means for adjusting its speed.
Claim 12
Dependent Claim 25 words
Apparatus as defined in claim 1, wherein said movable means includes means for adjusting the pressure with which it engages the neck of the body.
Claim 13
Dependent Claim 26 words
Apparatus as defined in claim 1, wherein said cutting means includes a straight blade that has a doubly bevelled leading corner directed toward the approaching bodies.
Claim 14
Dependent Claim 18 words
Apparatus as defined in claim 12, wherein the apex of the leading corner of the blade is rounded.
Claim 15
Dependent Claim 18 words
Apparatus as defined in claim 1, wherein said cutting means is fixedly mounted and is a circular blade.
Claim 16
Dependent Claim 19 words
Apparatus as defined in claim 1, wherein said cutting means is a circular blade which is mounted for rotation.
Claim 17
Dependent Claim 15 words
Apparatus as defined in claim 1, wherein said cutting means is associated with heating means.

References Cited (Backward Citations)

US1934660A Cited
US2114272A Cited
US2298366A Cited
US3084578A Cited
SU148212A1 Cited
US3302500A Cited
GB1131703A Cited
US3400620A Cited
US3481233A Cited
US3662633A Cited
US3653285A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-04-01 1977-10-01 1978-04-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-01 1981-10-01 1982-04-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-01 1985-10-01 1986-04-02 $7700.00 Window Closed / Lapsed

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