Patent US3724178A successfully refreshed from Google Patents.
US3724178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring hanger
Assignee: Continental Carbon Co
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Filing: 1971-06-21
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Granted: 1973-04-03
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Expires: 1991-06-21
Abstract
Abstract A wire hanger particularly designed for hanging a bag filter is of substantially triangular configuration with two overlapping loops extending beyond the apex of the triangle. The overlapping loops define an eye by which the hanger is supported. Each loop is slideable on the other so that the hanger also functions as a tension spring.
Inventors
- 👤 Boeuf J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:23
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778; Y10T24/44821; Y10T24/44829
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
153 words
A bag filter assembly comprising in combination: a housing, a grid having at least one aperture, a supporting member, at least one elongated tubular bag secured at one end to said at least one aperture, said bag further secured at its other end to said supporting member by a spring hanger device, said spring hanger device comprising a wire formed into a substantially triangular configuration with a base and two sides, the ends of said sides extending beyond the apex of the triangle, the ends being bent back to form two open-ended loops overlapping one another and the curved portions of such ends of the loops Crossing one another and terminating within the boundaries of the triangle, whereby the loops define a closed eye immediately below said apex, said eye being attached to said support, and said bag being attached to said base whereby said bag and said hanger are placed under tension.
Claim 2
Dependent Claim
153 words
A bag filter assembly comprising in combination: a housing, a grid having at least one aperture, a supporting member, at least one elongated tubular bag secured at one end to said at least one aperture, said bag further secured at its other end to said supporting member by a spring hanger device, said spring hanger device comprising a wire formed into a substantially triangular configuration with a base and two sides, the ends of said sides extending beyond the apex of the triangle, the ends being bent back to form two open-ended loops overlapping one another and the curved portions of such ends of the loops Crossing one another and terminating within the boundaries of the triangle, whereby the loops define a closed eye immediately below said apex, said eye being attached to said support, and said bag being attached to said base whereby said bag and said hanger are placed under tension.
Claim 3
Dependent Claim
20 words
The bag filter assembly of claim 1 wherein said hanger is formed of a single piece of tempered steel wire.
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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 |