Patent US3192091A successfully refreshed from Google Patents.
US3192091A
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Method of sealing a container
Assignee: Lever Brothers Co
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Filing: 1960-08-01
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Granted: 1965-06-29
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Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Hey Arie
- 👤 Brouwer Johannes
- 👤 Ottow Alexander Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:34
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2028; B65D77/2032; B65D77/2044; B29; B29C; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/4865; B29C65/487; B29C65/4875; B29C65/4885; B29C65/76; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/20; B29C66/24; B29C66/242; B29C66/2424; B29C66/24243; B29C66/24244; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C65/02; B29C65/04; B29C65/18; B29C65/38; B29C65/50; B29C65/5007; B29C65/5021; B29C65/5057; B29C66/70; B29C66/71; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2066; Y; Y10; Y10S; Y10S206/00; Y10S206/807; Y10T; Y10T156/00; Y10T156/11; Y10T156/1111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
THE METHOD OF MAKING A HERMETICALLY-SEALED CONTAINER FROM TWO COMPLEMENTARY CONTAINER PARTS OF THERMOPLASTIC MATERIAL SAID CONTAINER PARTS HAVING OPPOSED FACES TO BE BONDED TOGETHER, WHICH COMPRISES APPLYING TO AT LEAST ONE OF SAID OPPOSED FACES A LAYER OF BONDING MATERIAL COMPRISING A MIXTURE OF A THERMOPLASTIC ADHESIVE AND A PARTICULATE FIBER SELECTED FROM THE GROUP CONSISTING OF CHALK, ASBESTOS, SILICA, DIATOMACEOUS EARTH, MICA, KAOLIN, BENTONITE AND PRECIPITATED CALCIUM CARBONATE COATED WITH A CALCIUM SALT OF A FATTY ACID, SAID FILLER BEING PRESENT IN AN AMOUNT OF ABOUT 0.2 TO 1.0 PART BY WEIGHT FOR EACH PART OF THERMOPLASTIC ADHESIVE, AND HEATING AND PRESSING SAID FACES AGAINST SAID LAYER TO WELD SAID FACES TO SAID LAYER, SAID FILLER WEAKENING SAID LAYER TO CAUSE SAID LAYER TO CLEAVE WITHIN ITSELF WHEN FORCES ARE APPLIED TO SAID PARTS TO PULL THEM APART WITH ONE PORTION OF THE LAYER BEING ON ONE OPENED PART AND WITH THE REMAINING PORTION OF THE LAYER BEING ON THE OTHER OPENED PART, THE BONDING LAYER AND COMPLEMENTARY CONTAINER PARTS BEING COMPATIBLE SO THAT THE LAYER IS INTEGRALLY WELDED TO THE PARTS WHEN HEAT AND PRESSURE IS APPLIED THERETO.
Claim 2
Independent Claim
191 words
THE METHOD OF MAKING A HERMETICALLY-SEALED CONTAINER FROM TWO COMPLEMENTARY CONTAINER PARTS OF THERMOPLASTIC MATERIAL SAID CONTAINER PARTS HAVING OPPOSED FACES TO BE BONDED TOGETHER, WHICH COMPRISES APPLYING TO AT LEAST ONE OF SAID OPPOSED FACES A LAYER OF BONDING MATERIAL COMPRISING A MIXTURE OF A THERMOPLASTIC ADHESIVE AND A PARTICULATE FIBER SELECTED FROM THE GROUP CONSISTING OF CHALK, ASBESTOS, SILICA, DIATOMACEOUS EARTH, MICA, KAOLIN, BENTONITE AND PRECIPITATED CALCIUM CARBONATE COATED WITH A CALCIUM SALT OF A FATTY ACID, SAID FILLER BEING PRESENT IN AN AMOUNT OF ABOUT 0.2 TO 1.0 PART BY WEIGHT FOR EACH PART OF THERMOPLASTIC ADHESIVE, AND HEATING AND PRESSING SAID FACES AGAINST SAID LAYER TO WELD SAID FACES TO SAID LAYER, SAID FILLER WEAKENING SAID LAYER TO CAUSE SAID LAYER TO CLEAVE WITHIN ITSELF WHEN FORCES ARE APPLIED TO SAID PARTS TO PULL THEM APART WITH ONE PORTION OF THE LAYER BEING ON ONE OPENED PART AND WITH THE REMAINING PORTION OF THE LAYER BEING ON THE OTHER OPENED PART, THE BONDING LAYER AND COMPLEMENTARY CONTAINER PARTS BEING COMPATIBLE SO THAT THE LAYER IS INTEGRALLY WELDED TO THE PARTS WHEN HEAT AND PRESSURE IS APPLIED THERETO.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |