US3599639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable suction pump system
Assignee: Borg Warner Corp
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Filing: 1969-08-20
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Granted: 1971-08-17
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Expires: 1989-08-20
Abstract
Abstract A portable suction or vacuum pump system especially for medical use, which meets the requirements of pharyngeal and tracheal suctioning (high suction, low flow), gastric decompression or stomach pumping (moderate suction, low flow and cyclic operation), and pleural suctioning (low suction, high flow). Operation is by batteries, external DC or external AC by use of a power converter. A vacuum regulator and pump characteristics permit the various combinations of suction and flow.
Inventors
- 👤 Donald R Spotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:16
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/80; A61M2205/00; A61M2205/82; A61M2205/8206; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
A suction pump system especially adaptable for medical use comprising a suction pump having an inlet and an outlet, said inlet being connected to a fitting for use with a patient; means to drive said pump; means including a power source for energizing said driving means; a fluid collection and suction container connected between said pump inlet and to said fitting; a check valve connected between said container and said inlet to permit air flow to said inlet and to prevent air flow to said container; a regulator connected between said check valve and said container to regulate the degree of suction in said container; a gauge connected between said check valve and said container to indicate the degree of suction in said container; a vacuum switch connected between said check valve and said container for controlling the operation of said driving means; a float valve connected between said check valve and said container for preventing fluid flow from said container to said pump; and a vent valve connected to said container to permit exhaust from said container to the atmosphere.
Claim 2
Dependent Claim
181 words
A suction pump system especially adaptable for medical use comprising a suction pump having an inlet and an outlet, said inlet being connected to a fitting for use with a patient; means to drive said pump; means including a power source for energizing said driving means; a fluid collection and suction container connected between said pump inlet and to said fitting; a check valve connected between said container and said inlet to permit air flow to said inlet and to prevent air flow to said container; a regulator connected between said check valve and said container to regulate the degree of suction in said container; a gauge connected between said check valve and said container to indicate the degree of suction in said container; a vacuum switch connected between said check valve and said container for controlling the operation of said driving means; a float valve connected between said check valve and said container for preventing fluid flow from said container to said pump; and a vent valve connected to said container to permit exhaust from said container to the atmosphere.
Claim 3
Dependent Claim
16 words
A suction pump system as recited in claim 1 wherein said power source comprises battery means.
Claim 4
Dependent Claim
27 words
A suction pump system as recited in claim 2 wherein said battery means is rechargeable and said power source further comprises means to recharge said battery means.
Claim 5
Dependent Claim
22 words
A suction pump system as recited in claim 1 wherein said power means is external and comprises a source of DC current.
Claim 6
Dependent Claim
22 words
A suction pump system as recited in claim 1 wherein said power source is external and comprises a source of AC current.
Claim 7
Dependent Claim
38 words
A suction pump system as recited in claim 1 wherein said power source is internal and comprises a battery means, and said system further comprises a timer for indicating the length of time said battery means is operated.
Claim 8
Dependent Claim
43 words
A suction pump system as recited in claim 1 wherein said power source is internal and comprises a battery means, and said system further comprises a voltage cutout for stopping said motor when the voltage of said battery means reaches a predetermined level.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |