US3889552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating device for multiple dampers
Assignee: Combustion Engineering Inc
•
Filing: 1973-12-03
•
Granted: 1975-06-17
•
Expires: 1993-12-03
Abstract
Abstract An actuating device for two or more flow control dampers, utilizing a linkage arrangement which permits one or more of the dampers to be initially opened while the others remain closed, and which also rotates all of the dampers 90* to a fully open position simultaneously.
Inventors
- 👤 Jr Thomas Clifton Mcgough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:05
CPC Classifications
F; F22; F22B; F22B37/00; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
260 words
An actuating device for causing rotation of first and second members about first and second stationary pivot points, respectively, between first and second positions, the second positions being 90* from the first positions, said actuating device including a first link of dogleg configuration, a second link, a third link, a first leg of the first link being integral with the first member, and being rotatable about the first stationary pivot point at its outer end, the second leg of the dogleg being connected to one end of the second link by means of a first movable pivot point, the other end of the second link being connected to one end of the third link by means of a second movable pivot point, the other end of the third link being integral with the second member, and being rotatable about the second stationary pivot point, the first leg of the dogleg being parallel with the third link when the first and second members are in their first positions, means for causing 90* rotation of the first member, the length of the second leg of the dogleg, the length of the second link, and the angle included between the first and second legs of the dogleg, being so proportioned that the first leg of the dogleg and the third link will be parallel after 90* rotation of the first member, whereby during initial rotation of the first member no rotation of the second member occurs, but after 90* of rotation of the first member, the second member will also have rotated 90*.
Claim 2
Dependent Claim
260 words
An actuating device for causing rotation of first and second members about first and second stationary pivot points, respectively, between first and second positions, the second positions being 90* from the first positions, said actuating device including a first link of dogleg configuration, a second link, a third link, a first leg of the first link being integral with the first member, and being rotatable about the first stationary pivot point at its outer end, the second leg of the dogleg being connected to one end of the second link by means of a first movable pivot point, the other end of the second link being connected to one end of the third link by means of a second movable pivot point, the other end of the third link being integral with the second member, and being rotatable about the second stationary pivot point, the first leg of the dogleg being parallel with the third link when the first and second members are in their first positions, means for causing 90* rotation of the first member, the length of the second leg of the dogleg, the length of the second link, and the angle included between the first and second legs of the dogleg, being so proportioned that the first leg of the dogleg and the third link will be parallel after 90* rotation of the first member, whereby during initial rotation of the first member no rotation of the second member occurs, but after 90* of rotation of the first member, the second member will also have rotated 90*.
Claim 3
Dependent Claim
21 words
The actuating device of claim 1, whereby the angle included between the first and second legs of the dogleg is 90*.
Claim 4
Dependent Claim
43 words
The actuating device of claim 2, whereby the length of the second leg of the dogleg and the length of the second link is so proportioned that the first member is rotated through approximately 15* before any rotation of the second member occurs.
References Cited (Backward Citations)
US2341038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |