Patent US3419933A successfully refreshed from Google Patents.
Patent US3748837A successfully refreshed from Google Patents.
US3748837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination cut-out cock and dirt collectors
Assignee: Sloan Valve Co
•
Filing: 1971-01-18
•
Granted: 1973-07-31
•
Expires: 1991-01-18
Abstract
Abstract This combined cut-out cock and dirt collector for the brake pipe of railroad cars has a filter passage between the inlet and outlet passages with a ball valve at the entrance to the filter passage. A removable hollow filter element is in the filter passage and is spring pressed against the ball valve and in sealing engagement therewith.
Inventors
- 👤 H Billeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/42; B01D46/4272; B61; B61G; B61G5/00; B61G5/06; B61G5/08; F; F16; F16K; F16K5/00; F16K5/06; F16K5/0605; F16L; F16L55/00; F16L55/24; B01D2271/00; B01D2271/02; B01D2271/027; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8085
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
137 words
A combined cut-out cock and dirt collector for a railroad car including a valve body, first and second chambers in said body, an inlet passage opening into said first chamber, an outlet passage opening into said second chamber, a passage connecting said chambers, a movable ball valve having a passage therethrough mounted in said first chamber controlling the flow of air to said second chamber, means for moving said ball valve, a seal member positioned in said connecting passage and abutting said ball member, a sleeve having air passages therein positioned in said second chamber with one end abutting said seal member, spring means positioned in said second chamber between said other sleeve end and valve body and yieldingly urging said sleeve against said seal member and said seal member into sealing contact with said ball member.
Claim 2
Dependent Claim
137 words
A combined cut-out cock and dirt collector for a railroad car including a valve body, first and second chambers in said body, an inlet passage opening into said first chamber, an outlet passage opening into said second chamber, a passage connecting said chambers, a movable ball valve having a passage therethrough mounted in said first chamber controlling the flow of air to said second chamber, means for moving said ball valve, a seal member positioned in said connecting passage and abutting said ball member, a sleeve having air passages therein positioned in said second chamber with one end abutting said seal member, spring means positioned in said second chamber between said other sleeve end and valve body and yieldingly urging said sleeve against said seal member and said seal member into sealing contact with said ball member.
Claim 3
Dependent Claim
14 words
The structure of claim 1 further characterized in that said sleeve is a filter.
Claim 4
Dependent Claim
22 words
The structure of claim 1 further characterized in that said sleeve is generally imperforate with a plurality of spaced air passages therein.
Claim 5
Dependent Claim
44 words
The structure of claim 1 further characterized by an elongated enclosure forming a portion of said valve body and defining said second chamber, and wherein the means for moving said ball valve includes an operating handle extending through the side of said valve body.
Claim 6
Dependent Claim
32 words
The structure of claim 4 further characterized in that said elongated enclosure is removably attached to the valve body and has lugs formed on the inner sides thereof to position said sleeve.
Claim 7
Dependent Claim
33 words
The structure of claim 4 further characterized in that said sleeve has an annular sealing member about the periphery thereof, generally adjacent said one end, and in sealing engagement with the connecting passage.
Claim 8
Dependent Claim
32 words
The structure of claim 4 further characterized by first and second bearings forming a part of said ball valve on opposite sides thereof for mounting said ball valve within said valve body.
Claim 9
Dependent Claim
26 words
The structure of claim 4 further characterized in that there are stops on the exterior of said valve body for limiting movement of said operating handle.
References Cited (Backward Citations)
US973043A
Cited
US1601437A
Cited
US1722804A
Cited
US2839074A
Cited
FR1304723A
Cited
US3240342A
Cited
US3184212A
Cited
US3220694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |