US3589687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing element
Assignee: Monsanto Co
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Filing: 1968-12-23
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Granted: 1971-06-29
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Expires: 1988-12-23
Abstract
Abstract A packing element to be used in a reactor or mass transfer device wherein gas-gas, gas-liquid, and liquid-liquid phenomena are involved. The element is comprised of a housing having positioned therein adjacent the walls a first helical member of one hand, and a second helical member of opposite hand positioned within the first helical member.
Inventors
- 👤 Allen E Leybourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:52
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/30257; B01J2219/30265; B01J2219/308; B01J2219/3081; B01J2219/3083; B01J2219/3085; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
59 words
A packing element adapted for use in a packed column comprising a housing having open ends, said housing having therein a first helical member of one hand, and a second helical member disposed within the first helical member and being of a hand opposite the hand of the first helical member, said helical members being stationary within said housing.
Claim 2
Dependent Claim
59 words
A packing element adapted for use in a packed column comprising a housing having open ends, said housing having therein a first helical member of one hand, and a second helical member disposed within the first helical member and being of a hand opposite the hand of the first helical member, said helical members being stationary within said housing.
Claim 3
Dependent Claim
22 words
A packing element according to claim 1 wherein the shape of the first helical member is substantially that of a coil spring.
Claim 4
Dependent Claim
22 words
A packing element according to claim 1 wherein the shape of the second helical member is substantially that of a twisted ribbon.
Claim 5
Dependent Claim
25 words
A packing element according to claim 1 wherein the outer periphery of the first helical member is positioned adjacent the inside wall of the housing.
Claim 6
Dependent Claim
67 words
A packing element adapted for use in a packed column comprising a housing having open ends and having disposed therein: a. a spring-shaped helical member of one hand, the outer periphery of which is positioned adjacent the inside wall of the housing, and b. a twisted ribbon-shaped helical member of an opposite hand disposed within the spring-shaped helical member, said helical member being stationary within said housing.
Claim 7
Dependent Claim
67 words
A packing element adapted for use in a packed column comprising a housing having open ends and having disposed therein: a. a spring-shaped helical member of one hand, the outer periphery of which is positioned adjacent the inside wall of the housing, and b. a twisted ribbon-shaped helical member of an opposite hand disposed within the spring-shaped helical member, said helical member being stationary within said housing.
Claim 8
Dependent Claim
18 words
A packing element according to claim 5 wherein the spring-shaped helical member has a substantially triangular cross section.
Claim 9
Dependent Claim
19 words
A packing element according to claim 5 wherein the twisted ribbon-shaped helical member has a substantially rectangular cross section.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |