Patent US3984081A successfully refreshed from Google Patents.
US3984081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical device for controlling flow of intravenous solutions
Assignee: Lee Raymond Organization Inc
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Filing: 1974-10-25
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Granted: 1976-10-05
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Expires: 1994-10-25
Abstract
Abstract A vertically elongated hollow rectangular box with vertical walls and an open top and bottom has a downwardly and rearwardly extending slot in one side wall. The forward edge of the slot bears a series of arcuate rearwardly facing notches cut into the housing. A removable bar rides in the slot, and bears a knob exterior the housing. When a flexible tube or hose is placed along the rear wall in the interior of the housing, the bar gradually contricts its diameter as the bar is moved downwardly in the slot. The notches keep the bar in place.
Inventors
- 👤 Carolyn Lee Hoganson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:24
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/28; A61M39/286; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3969; Y10T24/3976; Y10T24/3993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A device for constricting the diameter of a flexible hose comprising: a vertically elongated hollow housing with the shape of a rectangular box and with four vertical walls open at its top and bottom ends, the housing having a slot in one and only one of its side walls, the slot being inclined longitudinally with respect to the rear wall and having a plurality of congruent arcuate rearwardly facing notches cut into the forward edge of the slot; calibrations denoting rates of fluid flow inscribed on the outside of the housing next to the notches in the slot; a horizontal, rigid bar removably located in the slot for increasingly constricting the diameter of a flexible fluid-carrying hose that has been passed through the housing along the rear wall as the bar is located lower down in the slot by squeezing the hose between the rear wall and the bar; and a control knob attached to the bar outside the housing for grasping by an operator to move the bar along the slot to various valving positions or to withdraw the bar from the slot to immediately restore full flow.
Claim 2
Independent Claim
189 words
A device for constricting the diameter of a flexible hose comprising: a vertically elongated hollow housing with the shape of a rectangular box and with four vertical walls open at its top and bottom ends, the housing having a slot in one and only one of its side walls, the slot being inclined longitudinally with respect to the rear wall and having a plurality of congruent arcuate rearwardly facing notches cut into the forward edge of the slot; calibrations denoting rates of fluid flow inscribed on the outside of the housing next to the notches in the slot; a horizontal, rigid bar removably located in the slot for increasingly constricting the diameter of a flexible fluid-carrying hose that has been passed through the housing along the rear wall as the bar is located lower down in the slot by squeezing the hose between the rear wall and the bar; and a control knob attached to the bar outside the housing for grasping by an operator to move the bar along the slot to various valving positions or to withdraw the bar from the slot to immediately restore full flow.
References Cited (Backward Citations)
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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) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |