US3557953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioned screen with seal
Assignee: WS Tyler Inc
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Filing: 1968-12-24
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Granted: 1971-01-26
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Expires: 1988-12-24
Abstract
Abstract A seal and screen combination including a hook strip along opposite edges of the screen. The screen is held taut between opposed support walls by T-shaped bolts extending through aligned apertures in the hook strip and screen and through the adjacent wall. Disposed between the hook strip edges of the screens and the walls are seal strips having concave surfaces facing the walls and including a portion for sealingly engaging the walls.
Inventors
- 👤 Louis E Hubach
- 👤 Edgar E Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:55
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/48; B07B1/49
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
In a vibrating screening apparatus having a sidewall, screening means, a hook strip along one edge of said screening means, a screen tensioning means supporting and tensioning said screening means and connected to said wall and an elastomeric seal means for sealing between said screening means and the sidewall held in sealing engagement by said tensioning means, the seal comprising an elongated member having a concave surface facing the sidewall.
Claim 2
Dependent Claim
70 words
In a vibrating screening apparatus having a sidewall, screening means, a hook strip along one edge of said screening means, a screen tensioning means supporting and tensioning said screening means and connected to said wall and an elastomeric seal means for sealing between said screening means and the sidewall held in sealing engagement by said tensioning means, the seal comprising an elongated member having a concave surface facing the sidewall.
Claim 3
Dependent Claim
32 words
The screening apparatus of claim 1 wherein the screen tensioning means comprises a T-shaped bolt and a nut, the shank piece of the T extending toward the wall and engaging the nut.
Claim 4
Dependent Claim
19 words
The screening apparatus of claim 2 wherein the crosspiece of the T extends substantially parallel with the hook strip.
Claim 5
Dependent Claim
15 words
The screening apparatus of claim 2 wherein the seal in cross section is substantially V-shaped.
Claim 6
Dependent Claim
23 words
The screening apparatus of claim 2 wherein the seal member sealingly engages the sidewall in line contact both above and below the bolt.
Claim 7
Dependent Claim
23 words
The screening apparatus of claim 5 wherein the portions of the seal member engaging the sidewall comprise portions of two rounded convex surfaces.
Claim 8
Dependent Claim
27 words
The screening apparatus of claim 5 including a pan below the screening means, said pan including an upturned edge extending between the seal member and the sidewall.
Claim 9
Dependent Claim
17 words
The screening apparatus of claim 1 wherein the seal member sealingly engages the sidewall in line contact.
Claim 10
Dependent Claim
24 words
The screening apparatus of claim 8 wherein the portion of the seal member engaging the sidewall comprises a portion of a rounded convex surface.
Claim 11
Dependent Claim
27 words
The screening apparatus of claim 1 including a pan below the screening means, said pan including an upturned edge extending between the seal member and the sidewall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |