Patent US3695048A successfully refreshed from Google Patents.
US3695048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoyance regulating apparatus for underwater swimming
Assignee: Individual
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Filing: 1970-02-06
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Granted: 1972-10-03
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Expires: 1990-02-06
Abstract
Abstract A piston, defining a part of or otherwise operatively associated with an elongated, hollow air chamber, is movable relative thereto for varying the volume of the latter, and is urged resiliently in the direction to reduce the volume of the air pressure chamber. The side of the piston opposite the air chamber is exposed to water in which a swimmer is to submerge, and a passageway communicates the interior of the air pressure chamber with a source of air under pressure, preferably the exhaust breath of the swimmer.
Inventors
- 👤 Royal H Dimick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:47
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22; B63C11/2245; B63C11/30
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
112 words
Buoyancy regulating apparatus for underwater swimming, comprising a. means forming an elongated, hollow air pressure buoyancy chamber, b. means forming an elongated, hollow water chamber sealed from and extending adjustably into said air pressure buoyancy chamber for varying the volume of the latter, c. resilient means interengaging the air pressure and water chamber forming means and urging the water chamber in the direction to reduce the volume of the air pressure buoyancy chamber, d. passageway means communicating the interior of the air pressure buoyancy chamber with a source of air under pressure, and e. passageway means communicating the interior of the water chamber with water in which a swimmer is to submerge.
Claim 2
Dependent Claim
112 words
Buoyancy regulating apparatus for underwater swimming, comprising a. means forming an elongated, hollow air pressure buoyancy chamber, b. means forming an elongated, hollow water chamber sealed from and extending adjustably into said air pressure buoyancy chamber for varying the volume of the latter, c. resilient means interengaging the air pressure and water chamber forming means and urging the water chamber in the direction to reduce the volume of the air pressure buoyancy chamber, d. passageway means communicating the interior of the air pressure buoyancy chamber with a source of air under pressure, and e. passageway means communicating the interior of the water chamber with water in which a swimmer is to submerge.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 wherein the resilient means comprises seal means between one end of the air pressure buoyancy chamber and the opposite end of the water chamber and forming a compressible air space therebetween.
Claim 4
Dependent Claim
41 words
The apparatus of claim 2 wherein the seal means comprises a longitudinally collapsible hollows bellows member sealed at one end to the air pressure chamber and at the opposite end to the water chamber and forming a compressible air space therein.
Claim 5
Dependent Claim
52 words
The apparatus of claim 2 including control means communicating said compressible air space selectively with a source of air pressure and exhaust and operable by a swimmer to vary the pressure in said air space relative to the pressure in said air pressure chamber, whereby to vary the volume of the latter.
Claim 6
Dependent Claim
69 words
The apparatus of claim 4 wherein the control means comprises a. first air pump means communicating said compressible air space with said air pressure chamber and operable to pump air from said air pressure chamber into said air space, and b. second air pump means communicating said compressible air space with said air pressure chamber and operable to pump air from said air space into said air pressure chamber.
Claim 7
Dependent Claim
20 words
The apparatus of claim 1 wherein the resilient means comprises spring means interengaging the air pressure chamber and water chamber.
Claim 8
Dependent Claim
52 words
The apparatus of claim 1 wherein the water chamber comprises a. a longitudinally collapsible bellows member sealed at one end to the air pressure chamber, and b. piston means closing the opposite end of the bellows member and movable longitudinally within the air pressure chamber for varying the volume of the latter.
Claim 9
Dependent Claim
41 words
The apparatus of claim 7 wherein the resilient means comprises a longitudinally collapsible hollow bellows member sealed at one end to the air pressure chamber and at the opposite end to the piston means and forming a compressible air space therein.
Claim 10
Dependent Claim
57 words
The apparatus of claim 1 in combination with underwater air supply means including an air pressure regulator having a breath exhaust outlet, the passageway means communicating the interior of the air pressure buoyancy chamber with a source of air under pressure comprising tubing means communicating the interior of the air pressure chamber with the breath exhaust outlet.
Claim 11
Dependent Claim
65 words
The apparatus of claim 9 including a. air pump means in the tubing means operable by a swimmer to pump breath exhaust into the air pressure chamber to increase the volume of the latter, and b. valve means communicating with the air pressure chamber and operable by a swimmer to reduce the pressure in the air pressure chamber to decrease the volume of the latter.
Claim 12
Dependent Claim
24 words
The apparatus of claim 9 including breath exhaust valve means having an inlet communicating with the regulator exhaust outlet and with the tubing means.
Claim 13
Dependent Claim
99 words
The apparatus of claim 9 wherein the resilient means comprises seal means between one end of the air pressure buoyancy chamber and the opposite end of the water chamber and forming a compressible air space therebetween, and the apparatus includes a. first air pump means communicating said compressible air space with said air prEssure chamber and operable to pump breath exhaust air from said air pressure chamber into said air space, and b. second air pump means communicating said compressible air space with said air pressure chamber and operable to pump breath exhaust air from said air pressure chamber.
Claim 14
Dependent Claim
41 words
The apparatus of claim 1 wherein the resilient means comprises a longitudinally collapsible hollow bellows member sealed at one end to the air pressure chamber and at the opposite end to the water chamber and forming a compressible air space therein.
Claim 15
Dependent Claim
52 words
The apparatus of claim 9 wherein the water chamber comprises a. a longitudinally collapsible bellows member sealed at one end to the air pressure chamber, and b. piston means closing the opposite end of the bellows member and movable longitudinally within the air pressure chamber for varying the volume of the latter.
Claim 16
Dependent Claim
41 words
The apparatus of claim 14 wherein the resilient means comprises a longitudinally collapsible hollow bellows member sealed at one end to the air pressure chamber and at the opposite end to the piston means and forming a compressible air space therein.
Claim 17
Dependent Claim
65 words
The apparatus of claim 15 including a. first air pump means communicating said compressible air space with said air pressure chamber and operable to pump air from said air pressure chamber into said air space, and b. second air pump means communicating said compressible air space with said air pressure chamber and operable to pump air from said air space into said air pressure chamber.
Claim 18
Dependent Claim
76 words
The apparatus of claim 1 wherein the water chamber comprises a. an elongated, hollow tube extending slidably outward through one end of the air pressure buoyancy chamber and open at its extended end, b. fluid pressure seal means between the tube and said one end of the air pressure chamber, and c. piston means closing the opposite end of the tube and movable longitudinally within the air pressure chamber for varying the volume of the latter.
Claim 19
Dependent Claim
99 words
Buoyancy regulating apparatus for underwater swimming, comprising a. means including a movable piston defining a hollow air pressure buoyancy chamber capable of being varied in volume by movement of said piston, b. the side of the piston opposite the air pressure buoyancy chamber being exposed to the pressure of water in which a swimmer is to submerge, c. resilient means engaging the piston and urging the latter in the direction to reduce the volume of the air pressure buoyancy chamber, and d. passageway means communicating the interior of the air pressure chamber with a source of air under pressure.
Claim 20
Dependent Claim
99 words
Buoyancy regulating apparatus for underwater swimming, comprising a. means including a movable piston defining a hollow air pressure buoyancy chamber capable of being varied in volume by movement of said piston, b. the side of the piston opposite the air pressure buoyancy chamber being exposed to the pressure of water in which a swimmer is to submerge, c. resilient means engaging the piston and urging the latter in the direction to reduce the volume of the air pressure buoyancy chamber, and d. passageway means communicating the interior of the air pressure chamber with a source of air under pressure.
Claim 21
Dependent Claim
34 words
The apparatus of claim 18 wherein the resilient means comprises longitudinally collapsible hollow bellows means fixed at one end and engaging the piston at the opposite end and forming a compressible air space therein.
Claim 22
Dependent Claim
52 words
The apparatus of claim 19 including control means communicating said compressible air space selectively with a source of air pressure and exhaust and operable by a swimmer to vary the pressure in said air space relative to the pressure in said air pressure chamber, whereby to vary the volume of the latter.
Claim 23
Dependent Claim
68 words
The apparatus of claim 18 including means on the side of the piston opposite the air pressure chamber providing an elongated hollow water chamber sealed from and extending adjustably into said air pressure chamber for varying the volume of the latter, the resilient means interengaging the air pressure chamber and water chamber for moving the latter in the direction to reduce the volume of the air pressure chamber.
Claim 24
Dependent Claim
70 words
The apparatus of claim 2 wherein the control means comprises: a. first air pump means communicating said compressible air space with said air pressure buoyancy chamber and operable to pump air from said air pressure chamber into said air space, and b. second air pump means communicating said compressible air space with said air pressure chamber and operable to pump air from said air space into said air pressure chamBer.
Claim 25
Dependent Claim
58 words
The apparatus of claim 18 in combination with underwater air supply means including an air pressure regulator having a breath exhaust outlet, the passageway means communicating the interior of the air pressure buoyancy chamber with a source of air under pressure comprising tubing means communicating the interior of the air pressure buoyancy chamber with the breath exhaust outlet.
Claim 26
Dependent Claim
24 words
The apparatus of claim 23 including breath exhaust valve means having an inlet communicating with the regulator exhaust outlet and with the tubing means.
Claim 27
Dependent Claim
75 words
The apparatus of claim 25 wherein the resilient means comprises means forming a longitudinally compressible air space fixed at one end and engaging the piston at the opposite end, and the apparatus includes control means communicating said compressible air space with the air pressure buoyancy chamber and operably by a swimmer selectively to transfer breath exhaust air between said air space and air pressure chamber, whereby to vary the volume of the air pressure chamber.
Claim 28
Dependent Claim
73 words
The apparatus of claim 25 wherein the control means comprises a. first air pump means communicating said compressible air space with said air pressure chamber and operable to pump breath exhaust air from said air pressure chamber into said air space, and b. second air pump means communicating said compressible air space with said air pressure chamber and operable to pump breath exhaust air from said air space into said air pressure chamber.
References Cited (Backward Citations)
US3161028A
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US3436777A
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US3436777B1
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US3487647A
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US3541985A
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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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |