US3848665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damper slide for hot blast slide dampers
Assignee: Hermann Rappold and Co GmbH
•
Filing: 1972-05-09
•
Granted: 1974-11-19
•
Expires: 1992-05-09
Abstract
Abstract A slide for hot blast slide dampers having a pair of spiral volutes arranged in the shape of a flat disc having an inlet connection and an outlet connection for a coolant at the edge thereof. One of the spiral volutes leads the coolant from the inlet connection to the center of the disc and into the other spiral volute whereby the coolant is lead from the center of the disc to the outlet connection. The volutes are separated from each other by walls extending transverse to the major plane of the disc to form a cooling channel. The volutes are separated by a single common wall extending substantially perpendicular to the major plane of the disc and the cross section of the cooling channel may be substantially quadrangular. The volutes are made from spirally interwound open sections welded together.
Inventors
- 👤 J Uerlichs
- 👤 R Muller
- 👤 W Kuckertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:38
CPC Classifications
F; F23; F23L; F23L13/00; F23L13/06; C; C21; C21B; C21B9/00; C21B9/10; C21B9/12; F16; F16K; F16K49/00; F16K49/005; F16K49/007; F23M; F23M7/00; F23M7/04; F28; F28D; F28D7/00; F28D7/04; F28D9/00; F28D9/04; F28F; F28F3/00; F28F3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
214 words
A slide for use in a hot blast slide damper having a casing, said slide comprising: a pair of channel members, each having an I-shape cross-section with opposite flanges joined by a web; said pair of channel members being spirally interwound with the edges of the flanges of one of said members sealingly connected to the edges of the flanges of the other of said members; said spirally interwound members forming a flat disc; said connected and spirally interwound members forming therebetween a pair of spaced convoluted cooling channels, said channels being separated by said webs of said members; said channels being connected at the center of said flat disc; a first of said channels, at the periphery of said disc, having an inlet connection for communication with a source of cooling fluid; a second of said channels, at the periphery of said disc, having an outlet connection for discharging said cooling fluid; whereby cooling fluid flows into said first channel from said inlet connection, through said first channel to said center of said disc and into said second channel, and through said second channel to said outlet connection; and a core member positioned at said center of said disc, said core member having deflecting means forming continuations of said webs of said members.
Claim 2
Dependent Claim
214 words
A slide for use in a hot blast slide damper having a casing, said slide comprising: a pair of channel members, each having an I-shape cross-section with opposite flanges joined by a web; said pair of channel members being spirally interwound with the edges of the flanges of one of said members sealingly connected to the edges of the flanges of the other of said members; said spirally interwound members forming a flat disc; said connected and spirally interwound members forming therebetween a pair of spaced convoluted cooling channels, said channels being separated by said webs of said members; said channels being connected at the center of said flat disc; a first of said channels, at the periphery of said disc, having an inlet connection for communication with a source of cooling fluid; a second of said channels, at the periphery of said disc, having an outlet connection for discharging said cooling fluid; whereby cooling fluid flows into said first channel from said inlet connection, through said first channel to said center of said disc and into said second channel, and through said second channel to said outlet connection; and a core member positioned at said center of said disc, said core member having deflecting means forming continuations of said webs of said members.
Claim 3
Dependent Claim
36 words
A slide as claimed in claim 1, further comprising a hollow ring surrounding the periphery of said disc, said hollow ring having sealing surfaces for engagement with corresponding surfaces of said casing of said slide damper.
References Cited (Backward Citations)
DE212607C
Cited
US1571929A
Cited
US1622664A
Cited
US2874941A
Cited
US3269405A
Cited
US3499462A
Cited
US3557823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |