US4539182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automated reagent blotter
Assignee: Bayer Corp
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Filing: 1983-04-08
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Granted: 1985-09-03
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Expires: 2003-04-08
Abstract
Abstract Apparatus is disclosed for aligning and simultaneously removing excess fluid from test devices. The apparatus comprises carrier means designed to support a test device used for the determination of constituents in fluid. The apparatus further comprises blotter means supported and guided by the carrier means, said blotter means being capable of moving along the carrier means and contacting the test device along one of the blotter surfaces. The surface of the blotter means which contacts the test device has characteristics to facilitate the removal of excess fluid present on the test device upon contact of the blotter with the test device.
Inventors
- 👤 Leighton C. Johnson
- 👤 James S. King, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:29
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0289; B01L3/0293; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/110833
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
Automated reagent blotter for removing excess fluid from a test device during the orientation of the test device, said automated reagent blotter consisting of: blotter means comprising a single plate having a contact surface for contacting a dip-and-read test device and removing excess fluid from said dip-and-read test device while orientating the dip-and-read test device, in which the contact surface of the blotter means has a series of capillary grooves perpendicular to the plane of the test device which cause excess fluid to flow from the dip-and-read test device down the capillary grooves upon contact between the blotter means the dip-and-read test device and in which the length of the capillary grooves of said blotter means differ in order to vary the amount of fluid removed from different areasof the dip-and-read test device; and support means which support a dip-and-read test device and guide and support said blotter means as the blotter means contacts the dip-and-read device.
Claim 2
Dependent Claim
157 words
Automated reagent blotter for removing excess fluid from a test device during the orientation of the test device, said automated reagent blotter consisting of: blotter means comprising a single plate having a contact surface for contacting a dip-and-read test device and removing excess fluid from said dip-and-read test device while orientating the dip-and-read test device, in which the contact surface of the blotter means has a series of capillary grooves perpendicular to the plane of the test device which cause excess fluid to flow from the dip-and-read test device down the capillary grooves upon contact between the blotter means the dip-and-read test device and in which the length of the capillary grooves of said blotter means differ in order to vary the amount of fluid removed from different areasof the dip-and-read test device; and support means which support a dip-and-read test device and guide and support said blotter means as the blotter means contacts the dip-and-read device.
Claim 3
Dependent Claim
24 words
The automated blotter of claim 1 in which the support means comprise multiple rods which extend penpendicular to the plane of the blotter means.
Claim 4
Dependent Claim
154 words
The combination of a dip-and-read test device and a reagent blotter for removing excess fluid from said test device, comprising: a dip-and-read test device; blotter means comprising a single plate having a contact surface for contacting said dip-and-read test device and removing excess fluid from said dip-and-read test device, in which the contact surface of the blotter means has a series of capillary grooves perpendicular to the plane of the test device which causes excess fluid to flow from the dip-and-read test device down the capillary grooves upon contact between the blotter means and the dip-and-read test device and in which the length of the capillary grooves of said blotter means differ in order to vary the amount of fluid removed from different areas of the dip-and-read test device; and support means which support said dip-and-read test device and guide and support said blotter means as the blotter means contacts the dip-and-read test device.
Claim 5
Dependent Claim
154 words
The combination of a dip-and-read test device and a reagent blotter for removing excess fluid from said test device, comprising: a dip-and-read test device; blotter means comprising a single plate having a contact surface for contacting said dip-and-read test device and removing excess fluid from said dip-and-read test device, in which the contact surface of the blotter means has a series of capillary grooves perpendicular to the plane of the test device which causes excess fluid to flow from the dip-and-read test device down the capillary grooves upon contact between the blotter means and the dip-and-read test device and in which the length of the capillary grooves of said blotter means differ in order to vary the amount of fluid removed from different areas of the dip-and-read test device; and support means which support said dip-and-read test device and guide and support said blotter means as the blotter means contacts the dip-and-read test device.
Claim 6
Dependent Claim
16 words
The blotter means of claim 1 in which the contact surface of the blotter is aluminum.
Claim 7
Dependent Claim
16 words
The blotter means of claim 1 in which the contact surface of the blotter is polystyrene.
Claim 8
Dependent Claim
16 words
The blotter means of claim 1 in which the contact surface of the blotter is nylon.
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) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |