Patent US3708082A successfully refreshed from Google Patents.
US3708082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic container
Assignee: Hoover Universal Inc
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Filing: 1971-03-29
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Granted: 1973-01-02
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Expires: 1991-03-29
Abstract
Abstract A relatively thin walled plastic bottle or jug having a high strength to weight ratio which has its walls shaped to minimize or eliminate harmful deformation during filling or pouring of liquids, and which has an attractive appearance when filled with liquid.
Inventors
- 👤 R Platte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:19
CPC Classifications
B; B65; B65D; B65D23/00; B65D23/10; B65D1/00; B65D1/02; B65D1/0223; B65D2501/00; B65D2501/0009; B65D2501/0018; B65D2501/0036; B65D2501/0081
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
138 words
A relative thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges, said wallpanels being tapered outwardly a small degree from their lower ends to their upper ends so that when the container is empty, the dimension between opposite wall-panels is greater at the top than at the bottom, and when the container is filled with liquid the greater extent of bulging of the wall-panels in the lower regions of the container will cause the wall-panels to appear vertical, said wall-panels being connected at their vertical edges by flat corner-panels which taper inwardly a small degree from their lower ends to their upper ends.
Claim 2
Dependent Claim
138 words
A relative thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges, said wallpanels being tapered outwardly a small degree from their lower ends to their upper ends so that when the container is empty, the dimension between opposite wall-panels is greater at the top than at the bottom, and when the container is filled with liquid the greater extent of bulging of the wall-panels in the lower regions of the container will cause the wall-panels to appear vertical, said wall-panels being connected at their vertical edges by flat corner-panels which taper inwardly a small degree from their lower ends to their upper ends.
Claim 3
Dependent Claim
50 words
The relatively thin-walled plastic container that is defined in claim 1, wherein a hollow handle is formed in the side and top wall portions, said handle being located so that it is an extension of one of said corner-panels, the upper end of the handle terminating adjacent to said neck.
Claim 4
Dependent Claim
33 words
The relatively thin-walled plastic container that is defined in claim 2, wherein said side wall portion defines a rib that circumscribes the container horizontally below the hollow handle to rigidify the side wall-panels.
Claim 5
Dependent Claim
31 words
The relatively thin-walled plastic container that is defined in claim 3 wherein said rib in an inwardly rounded groove which has relatively greater depth in said wall-panels than in said corner-panels.
Claim 6
Dependent Claim
22 words
The relatively thin-walled plastic container that is defined in claim 4 wherein said wall-panels have a thickness of less than 0.03 inch.
Claim 7
Dependent Claim
21 words
The relatively thin-walled plastic container that is defined in claim 5, wherein said wall-panels have a thickness of about 0.018 inch.
Claim 8
Dependent Claim
29 words
The relatively thin-walled plastic container that is defined in claim 6 wherein said bottom wall portion is concave and has a transverse reinforcing rib extending across the concave surface.
Claim 9
Dependent Claim
21 words
The relatively thin-walled plastic container that is defined in claim 1, wherein the taper of said wall-panels is approximately one-half degree.
Claim 10
Dependent Claim
122 words
A relatively thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges by four corner-panels and a rib which circumscribes the container approximately midway of the height of the wall-panels, said rib being rounded inwardly to allow inward bowing of the wall-panels to rigidify the wall-panels in a circumferentiAl direction, and a hollow handle formed in the side and top wall portion, said handle being located so that it is an extension of one of said corner-panels, the upper end of the handle terminating adjacent to said neck.
Claim 11
Dependent Claim
122 words
A relatively thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges by four corner-panels and a rib which circumscribes the container approximately midway of the height of the wall-panels, said rib being rounded inwardly to allow inward bowing of the wall-panels to rigidify the wall-panels in a circumferentiAl direction, and a hollow handle formed in the side and top wall portion, said handle being located so that it is an extension of one of said corner-panels, the upper end of the handle terminating adjacent to said neck.
Claim 12
Dependent Claim
84 words
A relatively thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges by four corner-panels and a rib which circumscribes the container approximately midway of the height of the wall panels, said rib being an inwardly rounded groove which has relatively greater depth in said wall-panels than in said corner-panels.
Claim 13
Dependent Claim
84 words
A relatively thin-walled plastic container having a high strength to weight ratio comprising bottom, side and top wall portions, said top wall portion merging to a neck which defines an outlet for the container, said side wall portion including four wall-panels connected at their vertical edges by four corner-panels and a rib which circumscribes the container approximately midway of the height of the wall panels, said rib being an inwardly rounded groove which has relatively greater depth in said wall-panels than in said corner-panels.
Claim 14
Dependent Claim
31 words
The relatively thin-walled plastic container that is defined in claim 10, wherein a second rib is formed in said side wall portion circumscribing the container adjacent to the bottom wall portion.
Claim 15
Dependent Claim
22 words
The relatively thin-walled plastic container that is defined in claim 12, wherein said wall-panels have a thickness of less than 0.03 inch.
Claim 16
Dependent Claim
21 words
The relatively thin-walled plastic container that is defined in claim 12, wherein said wall-panels have a thickness of about 0.018 inch.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |