US4747507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for a container
Assignee: Plastic Pipe Fabrication Pty Ltd
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Filing: 1986-05-12
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Granted: 1988-05-31
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Expires: 2006-05-12
Abstract
Abstract A moulded container for a bottle, the container is of double wall construction so as to provide good thermal insulation and the bottom of the container has a castellated opening or recess into which the crown seal of a bottle can be inserted for facilitating removal of the crown seal of the bottle. Also disclosed is a novel injection moulding die for forming a double walled container.
Inventors
- 👤 Louis T. R. Fitzgerald
- 👤 Roland P. Como
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/02; B; B65; B65G; B65G2201/00; B65G2201/02; B65G2201/0235; B65G2201/0261
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A holder for a container having a screw top, said holder comprising a body moulded from heat insulating material and including a recess for receiving the container so as to heat insulate the container when placed therein, said body having integrally formed therewith a top opening formation having a shape generally complementary to the screw top such that when the screw top is positioned in the formation, the top cannot be turned within the formation whereby rotation of the holder relative to the container causes unscrewing of the top from the container.
Claim 2
Dependent Claim
92 words
A holder for a container having a screw top, said holder comprising a body moulded from heat insulating material and including a recess for receiving the container so as to heat insulate the container when placed therein, said body having integrally formed therewith a top opening formation having a shape generally complementary to the screw top such that when the screw top is positioned in the formation, the top cannot be turned within the formation whereby rotation of the holder relative to the container causes unscrewing of the top from the container.
Claim 3
Dependent Claim
39 words
A holder as claimed in claim 1 wherein said body has inner and outer sidewalls, said recess being defined by the inner sidewall, said recess including a bottom which is formed at a lower edge of the inner sidewall.
Claim 4
Dependent Claim
17 words
A holder as claimed in claim 2 wherein said top opening formation is formed in said bottom.
Claim 5
Dependent Claim
29 words
A holder as claimed in claim 3 wherein said formation comprises a hole formed through said bottom with ribs projecting inwardly for engagement with the top of the container.
Claim 6
Dependent Claim
16 words
A holder as claimed in claim 2 including resilient ribs projecting inwardly from the inner sidewall.
Claim 7
Dependent Claim
34 words
A holder as claimed in claim 5 wherein the ribs extend in an axial direction relative to the inner sidewall and project obliquely relative to normal to the inner surface of the inner sidewall.
Claim 8
Dependent Claim
84 words
A method of moulding a container as defined in claim 2 by using an injection moulding die having an annular recess and a skirt portion extending therein and defining a cavity for forming the inner and outer sidewalls, said method being characterised by the step of forming pressure reducing ducts through said skirt portion near the free end thereof so as to permit flow of plastics material therethrough to thereby equalise pressure on the inner and outer sides of the skirt portion during moulding.
Claim 9
Dependent Claim
96 words
A method as claimed in claim 7 wherein said container is separated from the die by causing the skirt portion to be withdrawn from between the inner and outer sidewalls by causing movement of the container and skirt portion in a first direction and wherein said ducts are provided at angles inclined to radial directions and tapering through the skirt portion so as to form plugs therein which rupture at a trailing edge thereof relative to said movement of said container in said first direction to thereby facilitate removal of the container from the skirt portion.
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) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |