Patent US3684418A successfully refreshed from Google Patents.
US3684418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for applying labels or plates to blow molded thermoplastic hollow bodies
Assignee: Individual
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Filing: 1970-06-01
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Granted: 1972-08-15
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Expires: 1990-06-01
Abstract
Abstract A wrap-round label is applied to a blow-moulded article by means of a plunger extending through the mould wall. The front face of the plunger is concave, being shaped to fit the article, and the label is initially mounted on the plunger so as to be stretched or taut across the front face. When blow-moulding commences, initially the plunger is in an outwardly retracted position. As blow moulding proceeds, the plunger is advanced so as to wrap the label around the article.
Inventors
- 👤 Erhard Langecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:31
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/24; B29C49/2408; B65; B65C; B65C3/00; B65C3/06; B65C3/08; B65C3/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
197 words
Apparatus for applying a label in the form of a piece of a thin film of material capable of adhering to an article of a thermoplastic synthetic resin material as the article is blowmoulded in a mould into the form of a hollow body, said apparatus comprising: a plunger having a concavity therein presenting a concave face corresponding to a portion of the inner periphery of the mould; means carried by the plunger and disposed at the boundaries of said concavity for yieldably holding the edges of said piece of film and initially yieldably maintaining the latter in a generally planar disposition and in a spanning relationship to said concavity with the central areas of the piece of film disposed in spaced relationship to said concave face; and means for advancing said plunger toward said hollow body and into a mould closing position in a direction generally perpendicularly of the plane of said piece of film, whereby the central areas of said piece of film are first brought into contact with the hollow body and continuing advancement of the plunger wraps the piece of film around the body and withdraws its edges from said yieldable holding means.
Claim 2
Dependent Claim
197 words
Apparatus for applying a label in the form of a piece of a thin film of material capable of adhering to an article of a thermoplastic synthetic resin material as the article is blowmoulded in a mould into the form of a hollow body, said apparatus comprising: a plunger having a concavity therein presenting a concave face corresponding to a portion of the inner periphery of the mould; means carried by the plunger and disposed at the boundaries of said concavity for yieldably holding the edges of said piece of film and initially yieldably maintaining the latter in a generally planar disposition and in a spanning relationship to said concavity with the central areas of the piece of film disposed in spaced relationship to said concave face; and means for advancing said plunger toward said hollow body and into a mould closing position in a direction generally perpendicularly of the plane of said piece of film, whereby the central areas of said piece of film are first brought into contact with the hollow body and continuing advancement of the plunger wraps the piece of film around the body and withdraws its edges from said yieldable holding means.
Claim 3
Dependent Claim
25 words
Apparatus as set forth in claim 1 wherein said holding means comprises a plurality of ducts and means for applying a suction to said ducts.
Claim 4
Dependent Claim
15 words
Apparatus as set forth in claim 1 wherein said holding means comprises spring-biased clamping means.
Claim 5
Dependent Claim
15 words
Apparatus as set forth in claim 1 wherein said holding means comprises spring-biased clamping means.
Claim 6
Dependent Claim
32 words
Apparatus as set forth in claim 1 wherein is included means for continually supplying a strip of said film to the apparatus and means for cutting said piece out of the strip.
Claim 7
Dependent Claim
32 words
Apparatus as set forth in claim 1 wherein is included means for continually supplying a strip of said film to the apparatus and means for cutting said piece out of the strip.
Claim 8
Dependent Claim
30 words
Apparatus as claimed in claim 3, wherein the spring-biased clamping means comprises a clamping member connected to pins which extend through the plunger and spring elements arranged on the pins.
Claim 9
Dependent Claim
21 words
Apparatus as claimed in claim 5, and comprising spring elements adapted to limit the clamping force on the label or plate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |