US3718133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container unit for liquid samples
Assignee: Damon Corp
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Filing: 1971-01-12
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Granted: 1973-02-27
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Expires: 1991-01-12
Abstract
Abstract This invention relates to a disposable container unit for liquid samples and is particularly useful for the collection of blood specimens. It includes an elongated compressible bulb member having an integral nozzle attached thereto. An elongated storage volume having a closed and an open end and a small cross sectional area is also provided, the open end being in communication with the bulb member. Preferably but not necessarily the longitudinal axis of the storage volume, the bulb and the nozzle are coaxial. If the container unit is held vertically upward, liquid in the bulb will not flow freely into the storage volume because of its small cross sectional area. Similarly, if the storage volume contains liquid and is turned upside down, the liquid will not flow from it into the bulb.
Inventors
- 👤 W Perry
- 👤 J Marten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; A; A61; A61B; A61B10/00; A61B10/0045; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/150053; A61B5/150061; A61B5/150099; A61B5/150206; A61B5/150251; A61B5/150259; A61B5/150267; A61B5/150343; A61B5/150351; A61B5/150374; A61B5/150534; A61B5/15058; A61B5/150587; A61B5/150694; A61B5/150717; A61B5/150755; A61B5/150763; A61B5/150786; A61B5/150946; B01L3/54; B01L3/545
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
148 words
A container for the collection and storage of a liquid, said container comprising in combination 1. a bulb member having collapsible and resiliently restoring walls so as to be pumpable, and normally resiliently maintaining a first storage volume therein and normally having a minimal internal cross-section larger than a first area, 2. a nozzle affixed to said bulb member and having a liquid passage communicating through the wall of said bulb member with the interior thereof, and 3. a measurement and storage compartment having a second volume therein smaller than said first volume and affixed to said bulb member, the interior of said compartment communicating with the interior of said bulb member through an aperture of lesser cross-section than said first area and being fluid-tight except for said aperture, said aperture being sufficiently small to block the gravitational flow of liquid between said bulb member and said compartment.
Claim 2
Dependent Claim
148 words
A container for the collection and storage of a liquid, said container comprising in combination 1. a bulb member having collapsible and resiliently restoring walls so as to be pumpable, and normally resiliently maintaining a first storage volume therein and normally having a minimal internal cross-section larger than a first area, 2. a nozzle affixed to said bulb member and having a liquid passage communicating through the wall of said bulb member with the interior thereof, and 3. a measurement and storage compartment having a second volume therein smaller than said first volume and affixed to said bulb member, the interior of said compartment communicating with the interior of said bulb member through an aperture of lesser cross-section than said first area and being fluid-tight except for said aperture, said aperture being sufficiently small to block the gravitational flow of liquid between said bulb member and said compartment.
Claim 3
Dependent Claim
25 words
a nozzle affixed to said bulb member and having a liquid passage communicating through the wall of said bulb member with the interior thereof, and
Claim 4
Dependent Claim
25 words
a nozzle affixed to said bulb member and having a liquid passage communicating through the wall of said bulb member with the interior thereof, and
Claim 5
Dependent Claim
60 words
The combination defined in claim 1 further comprising level-indicating means on said bulb member, said level-indicating means being so located on said bulb member that the portion of said first storage volume between said level-indicating means and said aperture, when said container is oriented with said aperture disposed directly below said level-indicating means, is substantially equal to said second volume.
Claim 6
Dependent Claim
90 words
a measurement and storage compartment a. having a known second storage volume less than said first volume, b. having an open end feeding into said storage volume thereof from said bulb member for passing said liquid material from said bulb member into said compartment, c. forming with said bulb member a normally-closed vessel open only at said nozzle, and d. having the liquid-passing cross-section of said open end sufficiently small to preclude the free flow under at least gravitational force of liquid material between said compartment and said bulb member.
Claim 7
Dependent Claim
90 words
a measurement and storage compartment a. having a known second storage volume less than said first volume, b. having an open end feeding into said storage volume thereof from said bulb member for passing said liquid material from said bulb member into said compartment, c. forming with said bulb member a normally-closed vessel open only at said nozzle, and d. having the liquid-passing cross-section of said open end sufficiently small to preclude the free flow under at least gravitational force of liquid material between said compartment and said bulb member.
Claim 8
Dependent Claim
16 words
The combination defined in claim 1 in which said container is made of low density polyethylene.
Claim 9
Dependent Claim
70 words
a measurement and storage compartment having a second volume therein smaller than said first volume and affixed to said bulb member, the interior of said compartment communicating with the interior of said bulb member through an aperture of lesser cross-section than said first area and being fluid-tight except for said aperture, said aperture being sufficiently small to block the gravitational flow of liquid between said bulb member and said compartment.
Claim 10
Dependent Claim
70 words
a measurement and storage compartment having a second volume therein smaller than said first volume and affixed to said bulb member, the interior of said compartment communicating with the interior of said bulb member through an aperture of lesser cross-section than said first area and being fluid-tight except for said aperture, said aperture being sufficiently small to block the gravitational flow of liquid between said bulb member and said compartment.
Claim 11
Dependent Claim
19 words
The combination defined in claim 1 in which said first volume is at least three times said second volume.
Claim 12
Dependent Claim
17 words
The combination defined in claim 4 in which said container unit is made of low density polyethylene.
Claim 13
Dependent Claim
20 words
The combination defined in claim 1 in which the cross-sectional area of said aperture is less than 0.0177 square inches.
Claim 14
Dependent Claim
24 words
The combination defined in claim 1 in which chemical materials to aid in the preservation of said specimen are included in said bulb member.
Claim 15
Dependent Claim
35 words
The combination defined in claim 1 in which said compartment is elongated and said second volume therein is of uniform cross-sectional area between the ends thereof with a value not greater than 0.0177 square inches.
Claim 16
Dependent Claim
16 words
Container apparatus for the collection of liquid material and for the storage thereof, said apparatus comprising
Claim 17
Dependent Claim
16 words
Container apparatus for the collection of liquid material and for the storage thereof, said apparatus comprising
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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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |