US5988397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen for vibratory separator
Assignee: Varco IP Inc
•
Filing: 1997-07-17
•
Granted: 1999-11-23
•
Expires: 2017-07-17
Abstract
Abstract A screen for a vibratory shaker having a frame with multiple openings. Screen modules or plugs are disposed in each opening. Further disclosed is a mounting apparatus for securing the screen plugs in the openings and a support strip for supporting part of a screen having at least one upturned finger projecting above the top surface of the support body configured for contacting and supporting at least a part of a raised portion of the frame. A plug or module disposed in an opening of a positioning member of a screen assembly for a vibratory separator receives fluid with material therein for separation therefrom. Additionally disclosed is a method for making a plate mesh combination.
Inventors
- 👤 Thomas C. Adams
- 👤 David L. Schulte, Jr.
- 👤 Guy L. McClung, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:12
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/4609; B07B1/4618; B01; B01D; B01D29/00; B01D29/01; B01D29/012; B01D29/05; B01D29/07; B01D29/44; B01D29/445; B01D33/00; B01D33/01; B01D33/015; B01D33/0183; B01D33/03; B01D33/0346; B01D33/0376; B07B1/4627; B07B1/4645; B07B1/4654; B07B1/4663; B07B1/4672; B07B1/469; B07B1/48; E; E21; E21B; E21B21/00; E21B21/06; E21B21/063; E21B21/065; B07B2201/00; B07B2201/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
124 words
A screen for a vibratory shaker for screening material flowing thereto, the screen comprising a frame having two pairs of spaced-apart sides and having a corrugated shape comprising a plurality of alternating ridges, each ridge with a top and ridge sides, the frame with a plurality of spaced-apart frame openings, each frame opening within and extending through the frame, each ridge top having a plurality of said frame openings spaced apart and each ridge side having a plurality of said frame openings spaced apart, a plurality of screen plugs each with at least a portion thereof disposed within a frame opening, each screen plug having a plug body with a plug opening and screen means at the plug opening for screening material flowing thereto.
Claim 2
Dependent Claim
124 words
A screen for a vibratory shaker for screening material flowing thereto, the screen comprising a frame having two pairs of spaced-apart sides and having a corrugated shape comprising a plurality of alternating ridges, each ridge with a top and ridge sides, the frame with a plurality of spaced-apart frame openings, each frame opening within and extending through the frame, each ridge top having a plurality of said frame openings spaced apart and each ridge side having a plurality of said frame openings spaced apart, a plurality of screen plugs each with at least a portion thereof disposed within a frame opening, each screen plug having a plug body with a plug opening and screen means at the plug opening for screening material flowing thereto.
Claim 3
Dependent Claim
19 words
The screen of claim 1 wherein at least one screen plug is removably disposed in its respective frame opening.
Claim 4
Dependent Claim
18 words
The screen of claim 1 wherein all the screen plugs are removably disposed in their respective frame openings.
Claim 5
Dependent Claim
32 words
The screen of claim 1 wherein the frame has exterior sides defining a frame space within the frame and wherein the plurality of frame openings extend substantially all across the frame space.
Claim 6
Dependent Claim
17 words
The screen of claim 1 wherein the screen means is screening material disposed over the plug opening.
Claim 7
Dependent Claim
17 words
The screen of claim 1 wherein the screen means is screening material disposed in the plug opening.
Claim 8
Dependent Claim
34 words
The screen of claim 1 wherein the frame has holding means and the screen plugs have releasable attachment means that cooperate with the holding means to releasably mount the screen plugs in the frame.
Claim 9
Dependent Claim
16 words
The screen of claim 1 wherein the screen means is removably secured to the screen plugs.
Claim 10
Dependent Claim
19 words
The screen of claim 1 wherein the screen means comprises a series of openings extending through the plug bodies.
Claim 11
Dependent Claim
50 words
The screen of claim 1 wherein each plug body has a threaded end extendable through its respective frame opening and the screen further comprising a threaded nut for each screen plug for mating with the threaded end of the plug body to secure the screen plugs in their frame openings.
Claim 12
Dependent Claim
30 words
The screen of claim 1 wherein the frame has a frame top surface and each screen plug has a top surface which does not project above the frame top surface.
Claim 13
Dependent Claim
72 words
The screen of claim 1 wherein the plurality of screen plugs includes a first set of screen plugs and a second set of screen plugs, the first set of screen plugs having screening means comprising a first mesh of a first mesh size, and the second set of screen plugs having screening means comprising a second mesh of a second mesh size, the first mesh size different from the second mesh size.
Claim 14
Dependent Claim
34 words
The screen of claim 12 wherein the first set of screen plugs are for dewatering the material flowing to the vibratory shaker and the second set of screen plugs are for classifying the material.
Claim 15
Dependent Claim
34 words
The screen of claim 1 wherein the frame is substantially flat with a top surface and at least one screen plug has a screening portion that projects above the top surface of the frame.
Claim 16
Dependent Claim
17 words
The screen of claim 14 wherein the at least one screen module is all the screen plugs.
Claim 17
Dependent Claim
26 words
The screen of claim 14 wherein the frame has a bottom and at least one screen plug has a screening portion that projects below said bottom.
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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) | 2002-11-22 | 2003-05-24 | 2003-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-22 | 2007-05-24 | 2007-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-22 | 2011-05-24 | 2011-11-23 | $7700.00 | Window Closed / Lapsed |