US3773647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low voltage electrophoretic testing system
Assignee: Alfa Wassermann Inc
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Filing: 1972-05-12
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Granted: 1973-11-20
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Expires: 1992-05-12
Abstract
Abstract A low voltage electrophoretic testing system is provided incorporating the various individual components thereof, the system being adapted especially for use with the electrophoresis test kit units, including the various modifications thereof, disclosed and claimed in our copending application, filed even date herewith and entitled ''''Electrophoresis Test Kits and Method of Making the Same.
Inventors
- 👤 R Mandle
- 👤 F Karsai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:42
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
157 words
An electrophoretic testing apparatus, comprising, in combination, a unitary structure having a base wall, a first vertical wall dividing said structure into an electrolyte compartment having a length and into an outer compartment, two horizontally spaced, substantially parallel, rigid and clyindrical electrodes extending supportably through said first vertical wall in fluid-sealing relation therewith and extending substantially throughout the said length of said electrolyte compartment, a second vertical wall positioned generally parallel to said first vertical wall and spaced therefrom by substantially said length, two parallel side walls joined to said base wall and said two vertical walls in fluid-sealing relation, a third vertical wall extending substantially parallel to said electrodes and positioned within said electrolyte compartment between said electrodes and dividing said electrolyte compartment into two side-by-side electrolyte compartments, each of said side-by-side compartments containing one of said electrodes, and a supporting saddle member for said electrodes positioned adjacent to and parallel to said second vertical wall.
Claim 2
Dependent Claim
157 words
An electrophoretic testing apparatus, comprising, in combination, a unitary structure having a base wall, a first vertical wall dividing said structure into an electrolyte compartment having a length and into an outer compartment, two horizontally spaced, substantially parallel, rigid and clyindrical electrodes extending supportably through said first vertical wall in fluid-sealing relation therewith and extending substantially throughout the said length of said electrolyte compartment, a second vertical wall positioned generally parallel to said first vertical wall and spaced therefrom by substantially said length, two parallel side walls joined to said base wall and said two vertical walls in fluid-sealing relation, a third vertical wall extending substantially parallel to said electrodes and positioned within said electrolyte compartment between said electrodes and dividing said electrolyte compartment into two side-by-side electrolyte compartments, each of said side-by-side compartments containing one of said electrodes, and a supporting saddle member for said electrodes positioned adjacent to and parallel to said second vertical wall.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein said first vertical wall has positioned substantially adjacent and parallel thereto a second supporting saddle member for said electrodes.
Claim 4
Dependent Claim
17 words
The combination of claim 1 wherein said first saddle member is integral with said second vertical wall.
Claim 5
Dependent Claim
17 words
The combination of claim 4 wherein said second saddle member is integral with said first vertical wall.
Claim 6
Dependent Claim
22 words
The combination of claim 1 wherein said parallel side walls have separate top surfaces adapted to support an electrophoresis test kit unit.
Claim 7
Dependent Claim
28 words
The combination of claim 1 wherein said electrolyte compartment has positioned thereon orienting means adapted to insure properly oriented positioning of an electrophoresis tEst kit unit positionable thereon.
Claim 8
Dependent Claim
28 words
The combination of claim 7 wherein at least one of said top surfaces has a vertical projection thereon, said projection serving to orient said supported test kit unit.
Claim 9
Dependent Claim
18 words
The combination of claim 1 wherein a baffle and shield member is positioned substantially within said electrolyte compartment.
Claim 10
Dependent Claim
31 words
The combination of claim 8 wherein said third vertical wall has a top surface and said baffle and shield member is supported on said top surface on said third vertical wall.
Claim 11
Dependent Claim
26 words
The combination of claim 9 wherein said top surface has projections and said baffle and shield member has passages adapted to frictionally fit over said projections.
Claim 12
Dependent Claim
31 words
The combination of claim 8 wherein said baffle and shield member has a substantially horizontal top shelf wall and a depending vertical wall supported from each edge of said shelf wall.
Claim 13
Dependent Claim
11 words
The combination of claim 11 wherein said vertical walls diverge downwardly.
Claim 14
Dependent Claim
23 words
The combination of claim 14 wherein each separate diverging portion of said baffle and shield member walls substantially covers one of said electrodes.
Claim 15
Dependent Claim
47 words
The combination of claim 43 wherein said saddle member has two spaced positoning slots, and said electrolyte chamber has positioned therein a baffle and shield member having separate diverging vertical leg portions, each of said separate leg portions being positioned within a separate one of said slots.
Claim 16
Dependent Claim
51 words
The combination of claim 43 wherein each of said saddle members has two spaced positioning slots, and said electrolyte chamber has positioned therein a baffle and shield member having separate diverging vertical leg portions, the opposite ends of said leg portions being separately positioned within a separate one of said slots.
Claim 17
Dependent Claim
24 words
The combination of claim 14 wherein said diverging leg portions have separate leg portion ends each terminating a spaced distance from said base wall.
Claim 18
Dependent Claim
24 words
The combination of claim 15 wherein said diverging leg portions have separate leg portion ends each terminating a spaced distance from said base wall.
Claim 19
Dependent Claim
18 words
The combination of claim 8 wherein said baffle and shield member is formed of transparent electrically insulative material.
Claim 20
Dependent Claim
22 words
The combination of claim 8 wherein said baffle and shield member has formed therein at least one gas and heat escape passage.
Claim 21
Dependent Claim
15 words
The combination of claim 1 wherein a light source is positioned beneath said base wall.
Claim 22
Dependent Claim
14 words
The combination of claim 20 wherein said third vertical wall constitutes a light conductor.
Claim 23
Dependent Claim
16 words
The combination of claim 21 wherein reflective surfaces are positioned angularly adjacent to said light source.
Claim 24
Dependent Claim
39 words
The combination of claim 21 wherein said third vertical wall and a horizontal shelf wall on the top of said baffle and shield member have opaque surfaces adapted to provide dark background illumination for said electrophoresis test kit unit.
Claim 25
Dependent Claim
30 words
The combination of claim 1 wherein said outer compartment has two vertical side walls, and a timer and a substantially constant direct current housing unit is positioned within said compartment.
Claim 26
Dependent Claim
16 words
The combination of claim 24 wherein said outer compartment side walls frictionally engage said housing unit.
Claim 27
Dependent Claim
34 words
The combination of claim 24 wherein said housing unit has two horizontally spaced electrical sockets and each of said electrodes has a separate end for electrical connection for each separate one of said sockets.
Claim 28
Dependent Claim
17 words
The combination of claim 24 wherein said housing unit has an adjustable timing setting knob positioned thereon.
Claim 29
Dependent Claim
17 words
The combination of claim 24 wherein said housing unit has positioned therein a direct current adjusting circuit.
Claim 30
Dependent Claim
30 words
The combination of claim 24 wherein said housing unit has an electrical connection, and a source of substantially constant substantially low direct current voltage in series with said electrical connection.
Claim 31
Dependent Claim
11 words
The combination of claim 29 wherein said voltage source is adjustable.
Claim 32
Dependent Claim
22 words
The combination of claim 29 wherein said direct current voltage source is series connected to a rectifier and to a step-down transformer.
Claim 33
Dependent Claim
22 words
The combination of claim 30 wherein a plurality of separate substantially constant current units are separately parallel connected to said voltage source.
Claim 34
Dependent Claim
21 words
The combination of claim 31 wherein a plurality of separate substantially constant current units are separately parallel connected to said rectifier.
Claim 35
Dependent Claim
25 words
The combination of claim 32, wherein an electrical measuring device is provided together with means to selectively connect said device to each of said units.
Claim 36
Dependent Claim
25 words
The combination of claim 33 wherein an electrical measuring device is provided together with means to selectively connect said device to each of said units.
Claim 37
Dependent Claim
12 words
The combination of claim 34 wherein said measuring instrument is current responsive.
Claim 38
Dependent Claim
12 words
The combination of claim 34 wherein said measuring instrument is voltage responsive.
Claim 39
Dependent Claim
22 words
The combination of claim 32 wherein said voltage source includes separate means to individually adjust the voltage to each of said units.
Claim 40
Dependent Claim
19 words
The combination of claim 30 wherein said voltage source is adjustable from about 15 volts to about 30 volts.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |