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Title:
Plastic lids and pails
Abstract:
This invention concerns plastic lids and pails having improved resistance to leakage upon impact. Upstanding elements dissipate impact forces from the assembled pail and lid.
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Inventors:
Galer, Herbert W. (Allegheny County, PA, US)
Application Number:
563262
Filing Date: 1975-03-28 Publication_date: 1977-07-12 Assignee:
United States Steel Corporation (Pittsburgh, PA)
Primary Class(es):
220/288
206/508, 206/521, 220/675
Other Classes:
US Patent Ref:
| 2205685 | Jun, 1940 | Conner | 206/508. | | 2335260 | Nov, 1943 | Chamberlain | 220/74. | | 3108710 | Oct, 1963 | Lange et al. | 220/72. | | 3128903 | Apr, 1964 | Crisci | 220/306. | | 3216148 | Nov, 1965 | Amberg | 220/306. | | 3438535 | Apr, 1969 | Tisserand et al. | 220/266. | | 3510023 | May, 1970 | Ullman et al. | 150/. | | 3515306 | Jun, 1970 | Roper et al. | 220/72. | | 3516571 | Jun, 1970 | Roper et al. | 206/508. | | 3648884 | Mar, 1972 | Mansolino | 220/72. | | 3773208 | Nov, 1973 | Curry | 220/306. | | 3811597 | May, 1974 | Frankenberg et al. | 220/306. | | 3902620 | Sep, 1975 | McIntosh | 215/221. |
Other Refs:
Primary Examiner:
Price, William
Assistant Examiner:
Moy, Joseph Man-Fu
Attorney:
Callaghan; John E.
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