US3744656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: Individual
•
Filing: 1971-11-12
•
Granted: 1973-07-10
•
Expires: 1991-11-12
Abstract
Abstract A hollow blow-moulded container has injection moulded inserts for handles and a reinforcing outlet ring. The inner face of the inserts are provided with a plurality of raised portions, such as small cones or parallel fluting, which pierce but do not fully penetrate the adjacent container wall.
Inventors
- 👤 W Schiemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/02; B65D11/06; B29; B29C; B29C49/00; B29C49/20; B65D25/00; B65D25/28; B29C2049/2017; B29C2049/2021; B29C2049/2034; B29C2049/2039
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
A blow moulded plastic container comprising an injectionmoulded inset which is made of at least a similar plastic material to the blow-moulded material, a face of which bears against a wall section of blow-moulded plastic material and comprises a plurality of raised portions which do not fully penetrate the adjacent wall section of blow-moulded plastic material, but pierce and break through the surface of blowmoulded material at this point.
Claim 2
Dependent Claim
69 words
A blow moulded plastic container comprising an injectionmoulded inset which is made of at least a similar plastic material to the blow-moulded material, a face of which bears against a wall section of blow-moulded plastic material and comprises a plurality of raised portions which do not fully penetrate the adjacent wall section of blow-moulded plastic material, but pierce and break through the surface of blowmoulded material at this point.
Claim 3
Dependent Claim
42 words
A container as claimed in claim 1, in which the insert is a handle plate made of injection-moulded thermoplastic material, a face of said handle plate bearing against a corresponding wall section of the blow-moulded plastic material and including the raised portions.
Claim 4
Dependent Claim
15 words
A container as claimed in claim 2, in which the raised portions are small cones.
Claim 5
Dependent Claim
27 words
A container as claimed in claim 3, in which the raised portions are formed from negative impressions of punches in the tool for injection-moulding the handle plate.
Claim 6
Dependent Claim
40 words
A container as claimed in claim 1, in which the insert is an inner ring made of injection-moulded thermoplastic material for reinforcing an outlet in the container and a face of the inner ring is provided with axially parallel fluting.
Claim 7
Dependent Claim
16 words
A container as claimed in claim 5, in which the fluting is approximately triangular in cross-section.
Claim 8
Dependent Claim
40 words
A container as claimed in claim 5, in which the fluting extends only as far as a narrow substantially smooth rim which is arranged at the pouring end of the container and is approximately the same height as the fluting.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |