US3756460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metered liquid dispensing device
Assignee: ER Squibb and Sons LLC
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Filing: 1972-09-25
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Granted: 1973-09-04
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Expires: 1992-09-25
Abstract
Abstract A metered liquid dispensing device having a flexible hollow body with a narrowed unit volume chamber and a larger chamber which is connected to a fluid reservoir. A pair of spheres, one acting as a piston element and the other as a drive member are disposed in the body, with the piston element in abutting relation with the beginning of the narrowed section and the drive member directly behind and abutting the piston element. By finger manipulation of the flexible body, the drive member pushes the piston element through the unit volume chamber which element forces the fluid therein through a discharge member in the body.
Inventors
- 👤 J Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:43
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; G01F11/08; G01F11/10; G01F11/26; G01F11/262; G01F11/263; G01F11/265
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A metered fluid dispensing device comprising a semi-rigid, resilient, generally hollow body filled with fluid, said body adapted at one end to engage a reservoir member that is to be discharged, the other end of said body having a discharge member for the dispensation of the fluid, said body also comprising a narrowed section of predetermined volume, a piston element in said body of a diameter slightly greater than the relaxed diameter of said narrowed section, a drive member in abutting relation to said piston element and disposed between said reservoir and said piston element, said drive member adapted to be manually manipulated via the manual manipulation of said body, to drive said piston element, through the length of said narrowed section toward said discharge member, thereby forcing the fluid contents of said narrowed section through said discharge member.
Claim 2
Dependent Claim
139 words
A metered fluid dispensing device comprising a semi-rigid, resilient, generally hollow body filled with fluid, said body adapted at one end to engage a reservoir member that is to be discharged, the other end of said body having a discharge member for the dispensation of the fluid, said body also comprising a narrowed section of predetermined volume, a piston element in said body of a diameter slightly greater than the relaxed diameter of said narrowed section, a drive member in abutting relation to said piston element and disposed between said reservoir and said piston element, said drive member adapted to be manually manipulated via the manual manipulation of said body, to drive said piston element, through the length of said narrowed section toward said discharge member, thereby forcing the fluid contents of said narrowed section through said discharge member.
Claim 3
Dependent Claim
22 words
The device of claim 1 wherein the diameter of said drive member is slightly greater than the diameter of said narrowed section.
Claim 4
Dependent Claim
12 words
The device of claim 1 wherein said piston element is a sphere.
Claim 5
Dependent Claim
12 words
The device of claim 1 wherein said piston element is a sphere.
Claim 6
Dependent Claim
11 words
The device of claim 1 wherein drive member is a sphere.
Claim 7
Dependent Claim
17 words
The device of claim 1 wherein said piston element and said drive member are of equal diameter.
Claim 8
Dependent Claim
25 words
The device of claim 1 in which said body is fabricated from a transparent material to permit visual observation of the dispensation of the fluid.
Claim 9
Dependent Claim
40 words
In claim 1, a perforated plate connected to said body between said reservoir and said narrowed section said plate confining said piston element and said drive member within said body and permitting the passage of fluid therethrough into said body.
Claim 10
Dependent Claim
16 words
In claim 1, an internal rib on said body defining the beginning of said narrowed section.
Claim 11
Independent Claim
168 words
A method of dispensing metered fluid comprising taking a fluid metering device, said device comprising a seMirigid, resilient, generally hollow body said body adapted at one end to engage a reservoir member that is to be discharged, the other end of said body having a discharge member for the dispensation of the fluid, said body also comprising a narrowed section of predetermined volume, a piston element in said body of a diameter slightly greater than the relaxed diameter of said narrowed section, a drive member in abutting relation to said piston element and disposed between said reservoir and said piston element, said drive member manually manipulable, via the manual manipulation of said flexible body, through the length of said narrowed section, tilting said reservoir so as to fill said body with fluid, and said piston element contacting said narrowed section, and manipulating said body so as to force said drive member to push said piston element through said narrowed section to discharge the fluid through said discharge member.
Claim 12
Independent Claim
168 words
A method of dispensing metered fluid comprising taking a fluid metering device, said device comprising a seMirigid, resilient, generally hollow body said body adapted at one end to engage a reservoir member that is to be discharged, the other end of said body having a discharge member for the dispensation of the fluid, said body also comprising a narrowed section of predetermined volume, a piston element in said body of a diameter slightly greater than the relaxed diameter of said narrowed section, a drive member in abutting relation to said piston element and disposed between said reservoir and said piston element, said drive member manually manipulable, via the manual manipulation of said flexible body, through the length of said narrowed section, tilting said reservoir so as to fill said body with fluid, and said piston element contacting said narrowed section, and manipulating said body so as to force said drive member to push said piston element through said narrowed section to discharge the fluid through said discharge member.
References Cited (Backward Citations)
US3146919A
Cited
US3567079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |