Patent US3188662A successfully refreshed from Google Patents.
Patent US4548509A successfully refreshed from Google Patents.
US4548509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing disc
Assignee: CLIF MOCK Co
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Filing: 1984-10-05
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Granted: 1985-10-22
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Expires: 2004-10-05
Abstract
Abstract A mixing disc for use in a fluid sampler, for purposes of homogeneously mixing the sampled fluid; the disc having a housing which positions therein a pair of spaced mesh screens, the mesh in the spaced screens being positioned 45° out of phase with each other.
Inventors
- 👤 Kenneth S. Parrott
- 👤 Wendell K. Gillis
- 👤 Bernard C. Baros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:01
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/45; B01F25/451; B01F25/4512
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
In a fluid sampling device having an invertible, sample-receiving cylinder, the improvement comprising a fluid mixing member, said mixing member including: a centrally bored housing, movable within said cylinder; a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements; and the shear-causing elements of one of said mesh members are arcuately out of phase with the shear-causing elements of the other of said mesh members.
Claim 2
Dependent Claim
89 words
In a fluid sampling device having an invertible, sample-receiving cylinder, the improvement comprising a fluid mixing member, said mixing member including: a centrally bored housing, movable within said cylinder; a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements; and the shear-causing elements of one of said mesh members are arcuately out of phase with the shear-causing elements of the other of said mesh members.
Claim 3
Dependent Claim
27 words
The device of claim 1 wherein the external periphery of said mixing member housing is correlative in configuration with the internal configuration of said sampling device cylinder.
Claim 4
Dependent Claim
16 words
The device of claim 1 wherein said mixing member housing is annular in its peripheral configuration.
Claim 5
Dependent Claim
18 words
The device of claim 1 wherein said mesh members' shear causing elements are approximately 45° out of phase.
Claim 6
Dependent Claim
122 words
In a fluid sampling device having a sample-receiving cylinder, the improvement comprising a fluid mixing member, said mixing member including: a centrally bored housing, said mixing member housing being annular in its peripheral configuration, said housing accommodating a plurality of low friction balls and the O.D. of said housing is only slightly less than the I.D. of said cylinder; and a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements, all of said shear-causing elements of one of said mesh members being approximately 45° out of phase with the shear-causing elements of the other of said mesh members.
Claim 7
Dependent Claim
122 words
In a fluid sampling device having a sample-receiving cylinder, the improvement comprising a fluid mixing member, said mixing member including: a centrally bored housing, said mixing member housing being annular in its peripheral configuration, said housing accommodating a plurality of low friction balls and the O.D. of said housing is only slightly less than the I.D. of said cylinder; and a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements, all of said shear-causing elements of one of said mesh members being approximately 45° out of phase with the shear-causing elements of the other of said mesh members.
Claim 8
Dependent Claim
79 words
A fluid mixing device, adapted to gravity move through a fluid, comprising: an annular, centrally bored, housing; a pair of mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements, substantially all of said shear causing elements of one of said mesh members are arcuately out of phase with their counterpart shear-causing elements of the other of said mesh members.
Claim 9
Dependent Claim
79 words
A fluid mixing device, adapted to gravity move through a fluid, comprising: an annular, centrally bored, housing; a pair of mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear-causing elements, substantially all of said shear causing elements of one of said mesh members are arcuately out of phase with their counterpart shear-causing elements of the other of said mesh members.
Claim 10
Dependent Claim
17 words
The fluid mixing device of claim 6 wherein said shear-causing elements are approximately 45° out of phase.
Claim 11
Dependent Claim
21 words
The fluid mixing device of claim 7 wherein said housing accommodates a plurality of low friction balls around said housing's periphery.
Claim 12
Dependent Claim
56 words
A fluid mixing device comprising: an annular centrally bored housing; a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear causing elements; and a plurality of low friction balls around said housing's periphery.
Claim 13
Dependent Claim
56 words
A fluid mixing device comprising: an annular centrally bored housing; a pair of spaced apart mesh members centrally positioned within said housing bore, each said mesh member including a first plurality of shear-causing elements arranged substantially perpendicular to a second plurality of shear causing elements; and a plurality of low friction balls around said housing's periphery.
Claim 14
Dependent Claim
22 words
The fluid mixing device of claim 9 wherein each of said balls is separated from the nearest adjacent ball by approximately 120°.
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) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |