US4764162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable door seal assembly for a centrifuge
Assignee: Thermo Fisher Scientific Asheville LLC
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Filing: 1986-11-03
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Granted: 1988-08-16
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Expires: 2006-11-03
Abstract
Abstract A removable seal assembly for a centrifuge door includes a seal support plate slidably received in guide rails mounted to the undersurface of the door. The plate has a central opening lined with an annular seal support element. A flange secures the plate to the edge of the door. The support plate is slidably removable from the guide rails.
Inventors
- 👤 William A. Romanauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:28
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/02; Y; Y10; Y10S; Y10S277/00; Y10S277/921
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
112 words
In a centrifuge instrument of the type having a frame with a top plate having an access opening therein, a door movable with respect to the top plate from a first, open, position to a second, closed, position, with the door in the closed position covering the access opening in the top plate, wherein the improvement comprises: a pair of guides each having a groove therein, the groove having an upper and a lower guide surface thereon; a seal support receivable within the groove on each of the guides; and a seal member mounted to the support, the seal support and the seal thereon being removable from the guides as a unit.
Claim 2
Dependent Claim
112 words
In a centrifuge instrument of the type having a frame with a top plate having an access opening therein, a door movable with respect to the top plate from a first, open, position to a second, closed, position, with the door in the closed position covering the access opening in the top plate, wherein the improvement comprises: a pair of guides each having a groove therein, the groove having an upper and a lower guide surface thereon; a seal support receivable within the groove on each of the guides; and a seal member mounted to the support, the seal support and the seal thereon being removable from the guides as a unit.
Claim 3
Dependent Claim
64 words
The centrifuge of claim 1 wherein the door has an undersurface thereon and wherein the guides are mounted to the undersurface of the door and wherein the seal support further comprises a flange on the edge thereof, the flange being bent to extend substantially perpendicularly to the plane of the seal support, the flange being removably attached to the door along an edge thereof.
Claim 4
Dependent Claim
47 words
The centrifuge of claim 2 wherein the seal support has an upper and lower surface and wherein the seal has an upper and a lower lip thereon, the lips respectively extending in overlying relationship with respect to the upper and the lower surface of the seal support.
Claim 5
Dependent Claim
29 words
The centrifuge of claim 3 wherein the seal is an annular member and further comprising an insert disposed in the annular seal member, the insert having an opening therein.
Claim 6
Dependent Claim
67 words
The centrifuge of claim 1 wherein the top plate has a surface thereon and wherein the guides are mounted to the surface of the top plate and wherein the seal support further comprises a flange on the edge thereof, the flange being bent to extend substantailly perpendicularly to the plane of the seal support, the flange being removably attached to the top plate along an edge thereof.
Claim 7
Dependent Claim
47 words
The centrifuge of claim 5 wherein the seal support has an upper and lower surface and wherein the seal has an upper and a lower lip thereon, the lips respectively extending in overlying relationship with respect to the upper and the lower surface of the seal support.
Claim 8
Dependent Claim
29 words
The centrifuge of claim 6 wherein the seal is an annular member and further comprising an insert disposed in the annular seal member, the insert having an opening therein.
Claim 9
Dependent Claim
47 words
The centrifuge of claim 1 wherein the seal support has an upper and lower surface and wherein the seal has an upper and a lower lip thereon, the lips respectively extending in overlying relationship with respect to the upper and the lower surface of the seal support.
Claim 10
Dependent Claim
29 words
The centrifuge of claim 8 wherein the seal is an annular member and further comprising an insert disposed in the annular seal member, the insert having an opening therein.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |