US5051282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for water-repellent processing of tube
Assignee: Fujifilm Holdings Corp
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Filing: 1989-04-26
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Granted: 1991-09-24
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Expires: 2009-04-26
Abstract
Abstract A water-repellent liquid is held in a liquid-retainable outer surface of a liquid-retainable member. A tube is held so that a portion near its tip comes into contact with the liquid-retainable surfaces while the former is rotated relative to the latter. As the tube is rotated with respect to the liquid-retainable surface, a water-repellent surface is formed on an outer surface of the tube near its tip. Two liquid-retainable members may be provided so that the tube is rotated therebetween.
Inventors
- 👤 Sigeru Tezuka
- 👤 Keishiro Kido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:56
CPC Classifications
B; B01; B01L; B01L99/00; B01L3/00; B01L3/02; B01L3/0275; B01L2200/00; B01L2200/12; B01L2300/00; B01L2300/16; B01L2300/161; B01L2300/165; Y; Y10; Y10S; Y10S118/00; Y10S118/11
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
122 words
A method for water-repellent processing of a pipette, said pipette being used in chemical analyses for supplying a constant volume of a liquid sample, the method comprising the steps of providing a liquid-retainable member having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of said pipette into contact with said liquid-retainable outer surface, said portion of the pipette being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the pipette to attendantly prevent a part of said liquid sample from attaching itself to said portion of the pipette, and wherein said liquid-retainable member has a columnar shape and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 2
Independent Claim
122 words
A method for water-repellent processing of a pipette, said pipette being used in chemical analyses for supplying a constant volume of a liquid sample, the method comprising the steps of providing a liquid-retainable member having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of said pipette into contact with said liquid-retainable outer surface, said portion of the pipette being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the pipette to attendantly prevent a part of said liquid sample from attaching itself to said portion of the pipette, and wherein said liquid-retainable member has a columnar shape and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 3
Dependent Claim
19 words
A method as defined in claim 1 in which said liquid-retainable outer surface is made of a soft material.
Claim 4
Dependent Claim
25 words
A method as defined in claim 1 in which said portion of the pipette is rotated while being in contact with said liquid-retainable outer surface.
Claim 5
Dependent Claim
28 words
A method as defined in claim 1 in which said portion of the pipette is rotated while being in contact with and moved along said liquid-retainable outer surface.
Claim 6
Dependent Claim
19 words
A method as defined in claim 1 in which said tip is excluded from said portion of the pipette.
Claim 7
Independent Claim
87 words
A method for water-repellent processing of a tube comprising the steps of providing a liquid-retainable member having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of a tube into contact with said liquid-retainable outer surface, said portion of the tube being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the tube, in which said liquid-retainable member has a truncated cone-like shape, and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 8
Independent Claim
87 words
A method for water-repellent processing of a tube comprising the steps of providing a liquid-retainable member having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of a tube into contact with said liquid-retainable outer surface, said portion of the tube being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the tube, in which said liquid-retainable member has a truncated cone-like shape, and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 9
Independent Claim
83 words
A method for water-repellent processing of a tube comprising the steps of providing a liquid-retainable member means having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of a tube into contact with said liquid-retainable outer surface, said portion of the tube being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the tube, in which said liquid-retainable member means comprises two separate members each having a liquid-retainable outer surface.
Claim 10
Independent Claim
83 words
A method for water-repellent processing of a tube comprising the steps of providing a liquid-retainable member means having a liquid-retainable outer surface; keeping a water-repellent liquid on said liquid-retainable outer surface; bringing a portion of a tube into contact with said liquid-retainable outer surface, said portion of the tube being located near a tip thereof; and thereby forming a water-repellent surface on said portion of the tube, in which said liquid-retainable member means comprises two separate members each having a liquid-retainable outer surface.
Claim 11
Dependent Claim
33 words
A method as defined in claim 7 in which said portion of the tube is brought into contact with the liquid-retainable outer surfaces of said two separate members simultaneously and is rotated therebetween.
Claim 12
Dependent Claim
22 words
A method as defined in claim 7 in which both of the liquid-retainable outer surfaces of said two separate members are plane.
Claim 13
Dependent Claim
36 words
A method as defined in claim 7 in which the liquid-retainable outer surface of one of said two-separate members is plane and the liquid-retainable outer surface of the other has a partially or wholly columnar-shaped surface.
Claim 14
Dependent Claim
21 words
A method as defined in claim 7 in which both of said two separate members have a columnar or cylindrical shape.
Claim 15
Independent Claim
107 words
An apparatus for forming a water-repellent surface on an outer surface of a pipette near a tip thereof, said pipette being used in chemical analyses for supplying a constant volume of a liquid sample, the apparatus comprising a liquid-retainable member having a liquid-retainable outer surface; holding means for holding said pipette so that a portion of the pipette contacts said liquid-retainable outer surface while said portion of the pipette is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, said water-repellent surface attendantly preventing a part of said liquid sample from attaching itself to said portion of the pipette.
Claim 16
Independent Claim
107 words
An apparatus for forming a water-repellent surface on an outer surface of a pipette near a tip thereof, said pipette being used in chemical analyses for supplying a constant volume of a liquid sample, the apparatus comprising a liquid-retainable member having a liquid-retainable outer surface; holding means for holding said pipette so that a portion of the pipette contacts said liquid-retainable outer surface while said portion of the pipette is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, said water-repellent surface attendantly preventing a part of said liquid sample from attaching itself to said portion of the pipette.
Claim 17
Dependent Claim
19 words
An apparatus as defined in claim 12 in which said liquid-retainable outer surface is made of a soft material.
Claim 18
Dependent Claim
27 words
An apparatus as defined in claim 12 in which said liquid-retainable member has a columnar shape and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 19
Dependent Claim
33 words
An apparatus as defined in claim 12 in which said holding means is adapted to hold said pipette so that the tip of said pipette is prevented from contacting said liquid-retainable outer surface.
Claim 20
Independent Claim
90 words
An apparatus for forming a water-repellent surface on an outer surface of a tube near a tip thereof, comprising a liquid-retainable member having a liquid-retainable outer surface; holding means for holding said tube so that a portion of the tube contacts said liquid-retainable outer surface while said portion of the tube is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, in which said liquid-retainable member has a truncated cone-like shape, and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 21
Independent Claim
90 words
An apparatus for forming a water-repellent surface on an outer surface of a tube near a tip thereof, comprising a liquid-retainable member having a liquid-retainable outer surface; holding means for holding said tube so that a portion of the tube contacts said liquid-retainable outer surface while said portion of the tube is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, in which said liquid-retainable member has a truncated cone-like shape, and said liquid-retainable outer surface is formed on a periphery thereof.
Claim 22
Independent Claim
93 words
An apparatus for forming a water-repellent surface on an outer surface of a tube near a tip thereof comprising a liquid-retainable member means having a liquid-retainable outer surface; holding means having a liquid-retainable outer surface; holding means for holding said tube so that a portion of the tube contacts said liquid-retainable outer surface while said portion of the tube is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, in which said liquid-retainable member means comprises two separate members each having a liquid-retainable outer surface.
Claim 23
Independent Claim
93 words
An apparatus for forming a water-repellent surface on an outer surface of a tube near a tip thereof comprising a liquid-retainable member means having a liquid-retainable outer surface; holding means having a liquid-retainable outer surface; holding means for holding said tube so that a portion of the tube contacts said liquid-retainable outer surface while said portion of the tube is rotated relative to said liquid-retainable outer surface; and a water-repellent liquid held on said liquid-retainable outer surface, in which said liquid-retainable member means comprises two separate members each having a liquid-retainable outer surface.
Claim 24
Dependent Claim
44 words
An apparatus as defined in claim 17 in which said holding means is adapted to hold said tube so that said portion of the tube is brought into contact with the liquid-retainable outer surfaces of said two separate members simultaneously and is rotated therebetween.
Claim 25
Dependent Claim
27 words
An apparatus as defined in claim 18 in which the liquid-retainable outer surfaces of said two separate members are adapted to move in parallel in opposite directions.
Claim 26
Dependent Claim
22 words
An apparatus as defined in claim 17 in which both of the liquid-retainable outer surfaces of said two separate members are plane.
Claim 27
Dependent Claim
24 words
An apparatus as defined in claim 17 in which both of said two separate members have a columnar or cylindrical shape and are rotatable.
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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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |