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US3724064A
Expired / Lapsed
US
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Sealing method
Assignee: Mott Corp
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Filing: 1972-05-03
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Granted: 1973-04-03
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Expires: 1992-05-03
Abstract
Abstract A filter element for the high pressure filtration of synthetic polymers is locked and sealed in a filter body by providing a peripheral shoulder in the filter element and a soft metal rim seated in the peripheral shoulder, the rim having a longitudinal corrugation which is flattened to radially expand the rim inward and outward to lock and seal the filter element in the filter body. A hard metal locking rim may be used to provide a seal if a means is provided to maintain a pressure on the rim to flatten its corrugation and expand it inward and outward. Other elements may be sealed by the method of this invention.
Inventors
- 👤 Lambert H Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:37
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; B; B01; B01D; B01D29/00; B01D29/01; B01D29/03; B01D29/11; B01D29/31; B01D29/35; B01D29/50; B01D29/52; B01D29/56; B01D29/58; B23; B23P; B23P11/00; B23P11/02; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/11; B29C48/25; B29C48/254; B29C48/2545; B29C48/36; B29C48/50; B29C48/69; D; D01; D01D; D01D1/00; D01D1/10; D01D1/106; D01D4/00; D01D4/08; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0438; B01D2201/34; B29C48/12; B29C48/13; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
The method of forming a seal between two elements, one having a peripheral shoulder and the other having a cavity conforming to the shoulder, comprising the steps of a. placing a locking rim having a longitudinal corrugation between the shoulder of one element and the cavity of the other element, the longitudinal corrugation extending away from one of said elements, and b. flattening the longitudinal corrugation of the locKing rim laterally expanding the locking rim inward and outward to engage the shoulder and the cavity of the elements forming a seal.
Claim 2
Independent Claim
91 words
The method of forming a seal between two elements, one having a peripheral shoulder and the other having a cavity conforming to the shoulder, comprising the steps of a. placing a locking rim having a longitudinal corrugation between the shoulder of one element and the cavity of the other element, the longitudinal corrugation extending away from one of said elements, and b. flattening the longitudinal corrugation of the locKing rim laterally expanding the locking rim inward and outward to engage the shoulder and the cavity of the elements forming a seal.
Claim 3
Dependent Claim
14 words
The method according to claim 1 wherein the locking rim is of soft metal.
Claim 4
Dependent Claim
24 words
The method according to claim 1 wherein the longitudinal corrugation is flattened by providing a means to maintain a pressure on the locking rim.
Claim 5
Dependent Claim
15 words
The method according to claim 3 wherein the locking rim is of thin sheet metal.
Claim 6
Dependent Claim
33 words
The method according to claim 1 wherein the elements have inward and outward facing shoulders, the locking rim being placed between the shoulders and the corrugation being flattened by forcing the elements together.
Claim 7
Dependent Claim
34 words
The method according to claim 1 wherein the element having a peripheral shoulder is a filter element, the element containing a cavity is a filter body, and the locking rim is of soft metal.
Claim 8
Dependent Claim
30 words
The method according to claim 6 wherein the filter element has a disk portion containing an annular shoulder and the locking rim is a locking ring having an annular corrugation.
Claim 9
Dependent Claim
71 words
The method according to claim 1 wherein the element having a peripheral shoulder is a filter tube with a shank fixed thereto, the shank having an annular rim, and the element having a cavity is a base plate containing a bore with an internal shoulder, the locking rim being placed against the shoulder and being flattened by the rim of the shank to expand laterally engaging the shank and the bore.
Claim 10
Dependent Claim
93 words
The method according to claim 1 wherein the element having a peripheral shoulder is a filter tube with a shank fixed thereto, the shank having a downward facing annular shoulder about which the locking rim is disposed, and the element having a cavity is a base plate containing a bore within which the shank and the locking rim are disposed, the longitudinal corrugation of the locking rim being flattened by forcing a ring disposed about the shoulder into the bore expanding the locking ring inward and outward engaging the shoulder and the bore.
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |