US4143872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lung volume exerciser
Assignee: CREDITANSTALT CORPORATE FINANCE Inc
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Filing: 1977-04-07
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Granted: 1979-03-13
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Expires: 1997-04-07
Abstract
Abstract A device for exercising the lungs by forced inhaling or exhaling comprises a mouthpiece and a valve assembly incorporating a valve housing unit having a gas inlet port and a gas outlet port both communicating with a cavity in which a movable valve body is received and which valve body has a first passageway for directing gas between the inlet and outlet ports and a second passageway for directing gas between a by-pass port and the gas outlet port. The relative amount of gas passing through the gas inlet port and through the gas by-pass port is determined by the position of the valve body and can be regulated by moving the valve body. The device also includes means for monitoring the flow of gas passing through the gas inlet port and preferably the length of time of that gas passage, and means for counting sequential inspirations or expirations of the user during the exercise.
Inventors
- 👤 Harold R. Havstad
- 👤 Miguel A. Ruksenas
- 👤 Robert O. Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/08; A61B5/087; A63; A63B; A63B23/00; A63B23/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
163 words
A device for exercising the lungs comprising: a valve housing having a cavity, a gas inlet port, a gas outlet port, and a gas by-pass port, each communicating with said cavity; a valve body moveably received in said cavity having a first passageway for communicating between said gas inlet and outlet ports, and a second passageway for communicating between said gas outlet port and said gas by-pass port; whereby movement of said valve body provides selective alignment of said first and second passageways with said ports for determining the respective volumes of gas passing through said inlet port and said by-pass port; a gas inlet pipe communicating with said valve housing through said gas inlet port; a gas outlet pipe communicating with said valve housing through said gas outlet port; a moveable member moved by gas passing through said gas inlet and outlet pipes; and means for monitoring the movement of said moveable member for counting sequential inspirations or expirations through the device.
Claim 2
Independent Claim
163 words
A device for exercising the lungs comprising: a valve housing having a cavity, a gas inlet port, a gas outlet port, and a gas by-pass port, each communicating with said cavity; a valve body moveably received in said cavity having a first passageway for communicating between said gas inlet and outlet ports, and a second passageway for communicating between said gas outlet port and said gas by-pass port; whereby movement of said valve body provides selective alignment of said first and second passageways with said ports for determining the respective volumes of gas passing through said inlet port and said by-pass port; a gas inlet pipe communicating with said valve housing through said gas inlet port; a gas outlet pipe communicating with said valve housing through said gas outlet port; a moveable member moved by gas passing through said gas inlet and outlet pipes; and means for monitoring the movement of said moveable member for counting sequential inspirations or expirations through the device.
Claim 3
Dependent Claim
14 words
The device of claim 1 including a mouthpiece secured to said gas outlet pipe.
Claim 4
Dependent Claim
37 words
The device of claim 1 including a chamber in said gas inlet pipe in which said moveable member is received, whereby said moveable member is moved by gas passing along said inlet pipe and through said chamber.
Claim 5
Dependent Claim
39 words
The device of claim 3 wherein said moveable member comprises a reciprocating shaft having a head member against which gas passing through said chamber is directed to displace said shaft and which displacement is detected by said monitoring means.
Claim 6
Dependent Claim
37 words
The device of claim 4 wherein said chamber includes a restricted passageway having a greater cross-sectional dimension than said head member whereby said gas passing through said chamber passes between said restricted passageway and said head member.
Claim 7
Dependent Claim
26 words
The device of claim 4 including biasing means for urging said reciprocating shaft to a rest position against the flow of said gas through said chamber.
Claim 8
Dependent Claim
19 words
The device of claim 6 wherein in said rest position said head member is disposed in said restricted passageway.
References Cited (Backward Citations)
US393869A
Cited
US1176886A
Cited
US3669097A
Cited
US3754546A
Cited
US3922525A
Cited
US4025070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |