Patent US3792425A successfully refreshed from Google Patents.
US3792425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for generating acoustic waves in a liquid medium
Assignee: IFP Energies nouvelles
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Filing: 1971-10-13
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Granted: 1974-02-12
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Expires: 1991-10-13
Abstract
Abstract Device for generating acoustic waves in a liquid medium by implosion having two movable rigid members interconnected by a deformable membrane the membrane is formed of two annular strips each perpendicularly secured to the external edge of a movable member and to an annular flange external to the moveable members respectively to form a tight enclosure between the moveable member. At least one annular boss is provided on the external edges of the rigid members and on the annular flange to achieve a proper sealing between the external liquid medium and the enclosure.
Inventors
- 👤 P Magneville
- 👤 C Duconge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:53
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/133; G01V1/135
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
205 words
An arrangement for generating acoustic waves in a liquid medium comprising at least two members movable with respect to each other in opposite directions, said members being made of rigid material and connected by a sealing membrane formed of two annular strips of deformable material, each secured at its internal periphery to the external edge of a movable member and at its external periphery to an annular rigid element disposed externally to the movable members constituting with the member and the membrane a tight enclosure, each of said members being provided with an external edge and at least one contact surface, the improvement consisting in that the annular rigid element comprises an annular flange the external section of which is larger than the distance between the external edges of the movable members when in contact, said flange being provided with two surface portions inclined with respect to the contact surfaces of the movable members and an intermediate surface portion disposed parallel to the external edges of the movable members interconnecting said two inclined surface portions, said surface portion having an inclination of which is so selected that most of the annular strips lay on the flange when said members are in contact with each other.
Claim 2
Dependent Claim
205 words
An arrangement for generating acoustic waves in a liquid medium comprising at least two members movable with respect to each other in opposite directions, said members being made of rigid material and connected by a sealing membrane formed of two annular strips of deformable material, each secured at its internal periphery to the external edge of a movable member and at its external periphery to an annular rigid element disposed externally to the movable members constituting with the member and the membrane a tight enclosure, each of said members being provided with an external edge and at least one contact surface, the improvement consisting in that the annular rigid element comprises an annular flange the external section of which is larger than the distance between the external edges of the movable members when in contact, said flange being provided with two surface portions inclined with respect to the contact surfaces of the movable members and an intermediate surface portion disposed parallel to the external edges of the movable members interconnecting said two inclined surface portions, said surface portion having an inclination of which is so selected that most of the annular strips lay on the flange when said members are in contact with each other.
Claim 3
Dependent Claim
16 words
The arrangement according to claim 3, wherein said sealing means comprise at least one annular boss.
Claim 4
Dependent Claim
22 words
The arrangement according to claim 1, further comprising a means for sealing the annular strips to said moveable members and said flange.
Claim 5
Dependent Claim
168 words
An arrangement for an acoustic wave generator having at least two movable members provided with opposing contact surfaces interconnected by a pair of annular strips of deformable material, said two movable members adapted to be selectively moved from a position wherein the contact surfaces engage to a position wherein said contact surfaces are spaced apart, the improvement comprising: a flange disposed externally of said movable members, provided with first and second spaced portions extending substantially parallel to said contact surfaces, said first and second spaced portions being spaced a distance which is intermediate of the distances between the external edges of the movable members when in contact and when is spaced apart relationship, a third and fourth portion inclined with respect to said contact surfaces extending from said first and second portions, respectively, and a fifth portion disposed substantially perpendicular to said first and second portions joining said third and fourth portions, said annular strips being secured to said first and second portions, respectively, and said movable members.
Claim 6
Dependent Claim
168 words
An arrangement for an acoustic wave generator having at least two movable members provided with opposing contact surfaces interconnected by a pair of annular strips of deformable material, said two movable members adapted to be selectively moved from a position wherein the contact surfaces engage to a position wherein said contact surfaces are spaced apart, the improvement comprising: a flange disposed externally of said movable members, provided with first and second spaced portions extending substantially parallel to said contact surfaces, said first and second spaced portions being spaced a distance which is intermediate of the distances between the external edges of the movable members when in contact and when is spaced apart relationship, a third and fourth portion inclined with respect to said contact surfaces extending from said first and second portions, respectively, and a fifth portion disposed substantially perpendicular to said first and second portions joining said third and fourth portions, said annular strips being secured to said first and second portions, respectively, and said movable members.
Claim 7
Dependent Claim
25 words
An arrangement according to claim 4, further comprising a means for sealing said annular strips to said first and second portions and said moveable members.
Claim 8
Dependent Claim
27 words
An arrangement according to claim 5, wherein said sealing means comprises at least one annular boss disposed on said first and second portions and said moveable members.
Claim 9
Dependent Claim
22 words
An arrangement according to claim 1, wherein said annular strips are secured to said flange and said moveable members by clamping bolts.
Claim 10
Dependent Claim
21 words
An arrangement according to claim 7, wherein means are provided to prevent deterioration of said annular strips around said clamping bolts.
Claim 11
Dependent Claim
28 words
An arrangement according to claim 8, wherein said last mentioned means includes at least one metal ring interposed between each of said clamping bolts and said annular strips.
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |