US4933047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chimney tray hat
Assignee: Shell USA Inc
•
Filing: 1989-03-22
•
Granted: 1990-06-12
•
Expires: 2009-03-22
Abstract
Abstract The invention therefore relates to a chimney tray hat apparatus for de-entraining droplets of liquid entrained in a stream containing vapor and liquid droplets flowing upwardly through a tray chimney in a vapor/liquid processing device, the chimney tray hat apparatus comprising a top cover or hat having an upper side and an underside which intercepts entrained liquid droplets flowing upwardly through the tray chimney, supports for supporting the chimney tray hat directly above the tray chimney, and a catcher ring and gutter for collecting the liquid impinging on the underside of the top cover and draining the liquid onto the supports and through the tray chimney.
Inventors
- 👤 Robert P. Bannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01D3/20; B01D3/205
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
105 words
A chimney tray hat apparatus in combination with a tray chimney in a vapor/liquid processing device for de-entraining droplets of liquid entrained in a stream containing vapor and liquid droplets flowing upwardly through the tray chimney, said chimney tray hat apparatus comprising a top cover having an upper side and an underside which intercepts entrained liquid flowing upwardly through the tray chimney, a gutter means for collecting and draining said liquid impinging on said underside of said top cover onto a means for supporting said top cover directly above said tray chimney and through said tray chimney into a zone located below said tray chimney.
Claim 2
Dependent Claim
105 words
A chimney tray hat apparatus in combination with a tray chimney in a vapor/liquid processing device for de-entraining droplets of liquid entrained in a stream containing vapor and liquid droplets flowing upwardly through the tray chimney, said chimney tray hat apparatus comprising a top cover having an upper side and an underside which intercepts entrained liquid flowing upwardly through the tray chimney, a gutter means for collecting and draining said liquid impinging on said underside of said top cover onto a means for supporting said top cover directly above said tray chimney and through said tray chimney into a zone located below said tray chimney.
Claim 3
Dependent Claim
20 words
The chimney tray hat apparatus of claim 1 wherein said means for supporting comprises from 1 to about 4 supports.
Claim 4
Dependent Claim
32 words
The chimney tray hat apparatus of claim 2 wherein said top cover and said tray chimney are circular, and said top cover has a diameter greater than that of said tray chimney.
Claim 5
Dependent Claim
21 words
The chimney tray hat apparatus of claim 1 wherein said gutter means is located above the top of said tray chimney.
Claim 6
Dependent Claim
32 words
The chimney tray hat apparatus of claim 4 wherein said gutter means comprises a catcher ring attached to the underside of the top cover and a gutter extending from said catcher ring.
Claim 7
Dependent Claim
30 words
The chimney tray hat apparatus of claim 5 wherein said gutter is inwardly and upwardly directed to provide for the interception of said liquid flowing downwardly on said catcher ring.
Claim 8
Dependent Claim
28 words
The chimney tray hat apparatus of claim 5 wherein said gutter has peaks to provide for efficient drainage of said liquid from said gutter onto said supporting means.
Claim 9
Dependent Claim
31 words
The chimney tray hat apparatus of claim 5 wherein said top cover is circular and said catcher ring has a diameter less than or equal to that of said top cover.
Claim 10
Dependent Claim
22 words
The chimney tray hat apparatus of claim 8 wherein said catcher ring has a diameter less than that of said top cover.
Claim 11
Dependent Claim
21 words
The chimney tray hat apparatus of claim 1 wherein said gutter means is located below the top of said tray chimney.
Claim 12
Dependent Claim
30 words
The chimney tray hat apparatus of claim 10 wherein said gutter means has peaks to provide for efficient drainage of said liquid from said gutter means onto said supporting means.
Claim 13
Dependent Claim
30 words
The chimney tray hat apparatus of claim 10 wherein said top cover is a concavedly downwardly shaped cover having said gutter means attached to the bottom edge of said cover.
Claim 14
Dependent Claim
34 words
The chimney tray hat apparatus of claim 12 wherein said gutter means is inwardly and upwardly directed to provide for the interception of said liquid flowing downwardly on said underside of said top cover.
Claim 15
Dependent Claim
30 words
The chimney tray hat apparatus of claim 1 wherein said gutter means has peaks to provide for efficient drainage of said liquid from said gutter means onto said supporting means.
References Cited (Backward Citations)
US20562A
Cited
US59334A
Cited
US335281A
Cited
US443328A
Cited
US1326230A
Cited
US1918005A
Cited
US2055048A
Cited
US2353833A
Cited
US2986233A
Cited
US3334027A
Cited
US3501400A
Cited
US4235706A
Cited
US4247368A
Cited
US4274944A
Cited
US4308130A
Cited
US4308131A
Cited
US4687550A
Cited
US4698138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |