Patent US3000433A successfully refreshed from Google Patents.
Patent US6000556A successfully refreshed from Google Patents.
US6000556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screen assembly for vibratory screening machine
Assignee: Derrick Manufacturing Corp
•
Filing: 1998-03-11
•
Granted: 1999-12-14
•
Expires: 2018-03-11
Abstract
Abstract A screening screen assembly for a vibratory screening machine including an apertured plate having side edge portions with first apertured bands extending between the side edge portions and second unapertured bands alternating with the first bands, the second bands having a wider width than the borders between the apertures in the first band, and an undulating screening screen having ridges and troughs between the ridges extending crosswise to the first and second plate bands and being secured thereto.
Inventors
- 👤 John J. Bakula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
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; B01D29/50; B01D29/56; B01D29/62; B01D29/70; B01D29/72; B01D33/00; B01D33/01; B01D33/03; B07B1/4654; B07B1/4663; B07B1/4672; B07B1/469
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
142 words
A screening screen assembly for a vibratory screening machine comprising a plate, side edge portions on said plate, a plurality of first plate bands extending crosswise between said side edge portions, a plurality of apertures in said first plate bands, plate members having a first width between said apertures in said first plate bands, a plurality of second plate bands extending crosswise between said side edge portions, said second plate bands having a second width which is larger than said first width, an undulating screening screen having ridges and troughs between said ridges for conducting material to be screened longitudinally thereof, said ridges and troughs extending crosswise to said first and second plate bands, and said troughs of said undulating screen being secured to unapertured portions of said second plate bands which are wider than said first width of said plate members.
Claim 2
Dependent Claim
142 words
A screening screen assembly for a vibratory screening machine comprising a plate, side edge portions on said plate, a plurality of first plate bands extending crosswise between said side edge portions, a plurality of apertures in said first plate bands, plate members having a first width between said apertures in said first plate bands, a plurality of second plate bands extending crosswise between said side edge portions, said second plate bands having a second width which is larger than said first width, an undulating screening screen having ridges and troughs between said ridges for conducting material to be screened longitudinally thereof, said ridges and troughs extending crosswise to said first and second plate bands, and said troughs of said undulating screen being secured to unapertured portions of said second plate bands which are wider than said first width of said plate members.
Claim 3
Dependent Claim
23 words
A screening screen assembly as set forth in claim 1 wherein said apertures extend both lengthwise and crosswise of said first plate bands.
Claim 4
Dependent Claim
25 words
A screening screen assembly as set forth in claim 2 wherein said plate members comprise plate members which extend lengthwise of said first plate bands.
Claim 5
Dependent Claim
38 words
A screening screen assembly as set forth in claim 2 wherein said plate members include first plate members which extend lengthwise of said first plate bands and second plate members which extend crosswise of said first plate bands.
Claim 6
Dependent Claim
21 words
A screening screen assembly as set forth in claim 1 wherein said undulating screen is also secured to said plate members.
Claim 7
Dependent Claim
23 words
A screening screen assembly as set forth in claim 5 wherein said apertures extend both lengthwise and crosswise of said first plate bands.
Claim 8
Dependent Claim
25 words
A screening screen assembly as set forth in claim 6 wherein said plate members comprise plate members which extend lengthwise of said first plate bands.
Claim 9
Dependent Claim
38 words
A screening screen assembly as set forth in claim 6 wherein said plate members include first plate members which extend lengthwise of said first plate bands and second plate members which extend crosswise of said first plate bands.
Claim 10
Dependent Claim
24 words
A screening screen assembly as set forth in claim 1 wherein said plate members comprise plate members which extend lengthwise of said first bands.
Claim 11
Dependent Claim
21 words
A screening screen assembly as set forth in claim 9 wherein said undulating screen is also secured to said plate members.
Claim 12
Dependent Claim
27 words
A screening screen assembly as set forth in claim 1 wherein a plurality of said first plate bands alternate with a plurality of said second plate bands.
Claim 13
Dependent Claim
23 words
A screening screen assembly as set forth in claim 11 wherein said apertures extend both lengthwise and crosswise of said first plate bands.
Claim 14
Dependent Claim
25 words
A screening screen assembly as set forth in claim 12 wherein said plate members comprise plate members which extend lengthwise of said first plate bands.
Claim 15
Dependent Claim
38 words
A screening screen assembly as set forth in claim 12 wherein said plate members include first plate members which extend lengthwise of said first plate bands and second plate members which extend crosswise of said first plate bands.
Claim 16
Dependent Claim
21 words
A screening screen assembly as set forth in claim 11 wherein said undulating screen is also secured to said plate members.
Claim 17
Dependent Claim
23 words
A screening screen assembly as set forth in claim 15 wherein said apertures extend both lengthwise and crosswise of said first plate bands.
Claim 18
Dependent Claim
25 words
A screening screen assembly as set forth in claim 16 wherein said plate members comprise plate members which extend lengthwise of said first plate bands.
Claim 19
Dependent Claim
38 words
A screening screen assembly as set forth in claim 16 wherein said plate members include first plate members which extend lengthwise of said first plate bands and second plate members which extend crosswise of said first plate bands.
Claim 20
Dependent Claim
142 words
A screening screen assembly for a vibratory screening machine comprising a plate, side edge portions on said plate, a plurality of first plate bands extending crosswise between said side edge portions, a plurality of apertures in said first plate bands, plate members having a first width between said apertures in said first plate bands, a plurality of second plate bands extending crosswise between said side edge portions, said second plate bands having a second width which is larger than said first width, an undulating screening screen having ridges and troughs between said ridges for conducting material to be screened longitudinally thereof, said ridges and troughs extending crosswise to said first and second plate bands, and said trough of said undulating screen being secured to unapertured portions of said second plate bands which are wider than said first width of said plate members.
Claim 21
Dependent Claim
142 words
A screening screen assembly for a vibratory screening machine comprising a plate, side edge portions on said plate, a plurality of first plate bands extending crosswise between said side edge portions, a plurality of apertures in said first plate bands, plate members having a first width between said apertures in said first plate bands, a plurality of second plate bands extending crosswise between said side edge portions, said second plate bands having a second width which is larger than said first width, an undulating screening screen having ridges and troughs between said ridges for conducting material to be screened longitudinally thereof, said ridges and troughs extending crosswise to said first and second plate bands, and said trough of said undulating screen being secured to unapertured portions of said second plate bands which are wider than said first width of said plate members.
Claim 22
Dependent Claim
21 words
A screening screen assembly as set forth in claim 19 wherein said plate members extend crosswise between said side edge portions.
Claim 23
Dependent Claim
38 words
A screening screen assembly as set forth in claim 19 wherein said plate members comprise first plate members which extend crosswise between said side edge portions and second plate members which extend transversely to said first plate members.
References Cited (Backward Citations)
US560858A
Cited
US40242A
Cited
US246144A
Cited
US275340A
Cited
US500302A
Cited
US526562A
Cited
BE505776A
Cited
US607598A
Cited
CA599661A
Cited
US691045A
Cited
US800693A
Cited
US964144A
Cited
US964897A
Cited
US966578A
Cited
US984866A
Cited
US1132667A
Cited
US1009069A
Cited
US1098979A
Cited
US1269085A
Cited
US1423021A
Cited
US1462804A
Cited
US1561632A
Cited
US1947307A
Cited
US1997740A
Cited
US1997713A
Cited
US2038071A
Cited
US2082513A
Cited
GB457924A
Cited
US2089548A
Cited
GB519680A
Cited
US2274700A
Cited
US2315055A
Cited
US2462878A
Cited
US2406051A
Cited
US2648441A
Cited
US2723032A
Cited
GB743902A
Cited
US2726184A
Cited
GB823648A
Cited
US2957235A
Cited
US2980208A
Cited
US3057481A
Cited
US2929464A
Cited
US3165473A
Cited
US3306794A
Cited
US3255885A
Cited
GB1106513A
Cited
US3374886A
Cited
US3465413A
Cited
GB1225849A
Cited
US3664503A
Cited
US3679057A
Cited
US3747772A
Cited
US3853529A
Cited
US4064051A
Cited
US3970549A
Cited
US4033865A
Cited
US4022596A
Cited
GB1512958A
Cited
US4019987A
Cited
US4075106A
Cited
JPS5532404A
Cited
US4512892A
Cited
US4380494A
Cited
US4464263A
Cited
US4517090A
Cited
GB2124099A
Cited
JPS59142818A
Cited
US4594162A
Cited
US4575421A
Cited
US4582597A
Cited
US4617122A
Cited
US4746339A
Cited
US4647373A
Cited
US4696751A
Cited
US4701197A
Cited
US4758333A
Cited
US4820407A
Cited
US4940500A
Cited
JPH01203010A
Cited
WO1989010781A1
Cited
DE3818972A1
Cited
US4954249A
Cited
US5084178A
Cited
US4832834A
Cited
US4882054A
Cited
US5139154A
Cited
US5167740A
Cited
EP0453348A1
Cited
US5221008A
Cited
US5230455A
Cited
US5312508A
Cited
US5417858A
Cited
US5417859A
Cited
US5417793A
Cited
US5720881A
Cited
US5783077A
Cited
US5490598A
Cited
US5636749A
Cited
US5598930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-13 | 2003-06-14 | 2003-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-13 | 2007-06-14 | 2007-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-13 | 2011-06-14 | 2011-12-14 | $7700.00 | Window Closed / Lapsed |