GB1281470A - Improvements in seismic impulse transmitting apparatus - Google Patents
Improvements in seismic impulse transmitting apparatusInfo
- Publication number
- GB1281470A GB1281470A GB6124970A GB6124970A GB1281470A GB 1281470 A GB1281470 A GB 1281470A GB 6124970 A GB6124970 A GB 6124970A GB 6124970 A GB6124970 A GB 6124970A GB 1281470 A GB1281470 A GB 1281470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tank
- diaphragm
- generator
- seismic energy
- polyurethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/387—Reducing secondary bubble pulse, i.e. reducing the detected signals resulting from the generation and release of gas bubbles after the primary explosion
Abstract
1281470 Seismic energy generators BOLT ASSOCIATES Inc 23 Dec 1970 [29 Dec 1969] 61249/70 Heading H4D A seismic energy generator for use on hard, soft or marshy ground or on water-covered areas comprises a liquid-containing tank 12 including one or more devices 18 for abruptly releasing pressurized gas (e.g. air) into the liquid, the tank having as its base a displaceable diaphragm structure comprising a diaphragm and cylindrical member 38. This structure allows the tank to move upwards as the seismic energy is transmitted downwards. The diaphragm is of metal. A seal which allows relative movement between tank 12 and member 38 is provided by annular, sliding, plastics (e.g. polyurethane) seal 42 or (Fig. 4, not shown) by a second, polyurethane diaphragm clamped at 47 to the rim of the wall of tank 12 so that the second diaphragm overlies the one shown. A stop-ring 56 and shock-absorbing polyurethane ring 58 limit the relative movement of tank 12 and member 38 so that the upward movement of tank 12 lifts the metal diaphragm after initial downward motion of the diaphragm. A support for the generator " catches " the generator and retards its subsequent fall. Rubber boot 62 excludes dirt from the generator. Released gas is vented from the generator via a gas-liquid separator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88875969A | 1969-12-29 | 1969-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1281470A true GB1281470A (en) | 1972-07-12 |
Family
ID=25393828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6124970A Expired GB1281470A (en) | 1969-12-29 | 1970-12-23 | Improvements in seismic impulse transmitting apparatus |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5017161B1 (en) |
BE (1) | BE760981A (en) |
CA (1) | CA934052A (en) |
DE (1) | DE2063380C3 (en) |
FR (1) | FR2074299A5 (en) |
GB (1) | GB1281470A (en) |
NL (1) | NL7018679A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2230859A (en) * | 1989-04-21 | 1990-10-31 | British Gas Plc | Seismic pulse generation |
US5145371A (en) * | 1989-09-15 | 1992-09-08 | Nobelpharma Ab | Distance member |
US5270985A (en) * | 1989-04-21 | 1993-12-14 | British Gas Plc | Seismic pulse generation |
-
1970
- 1970-12-15 CA CA100625A patent/CA934052A/en not_active Expired
- 1970-12-22 NL NL7018679A patent/NL7018679A/xx unknown
- 1970-12-23 DE DE19702063380 patent/DE2063380C3/en not_active Expired
- 1970-12-23 GB GB6124970A patent/GB1281470A/en not_active Expired
- 1970-12-24 FR FR7046717A patent/FR2074299A5/fr not_active Expired
- 1970-12-25 JP JP45118485A patent/JPS5017161B1/ja active Pending
- 1970-12-29 BE BE760981A patent/BE760981A/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2230859A (en) * | 1989-04-21 | 1990-10-31 | British Gas Plc | Seismic pulse generation |
GB2230859B (en) * | 1989-04-21 | 1993-02-10 | British Gas Plc | Seismic pulse generation |
US5270985A (en) * | 1989-04-21 | 1993-12-14 | British Gas Plc | Seismic pulse generation |
US5145371A (en) * | 1989-09-15 | 1992-09-08 | Nobelpharma Ab | Distance member |
Also Published As
Publication number | Publication date |
---|---|
FR2074299A5 (en) | 1971-10-01 |
DE2063380A1 (en) | 1971-07-15 |
BE760981A (en) | 1971-05-27 |
NL7018679A (en) | 1971-07-01 |
DE2063380B2 (en) | 1980-01-17 |
JPS5017161B1 (en) | 1975-06-19 |
CA934052A (en) | 1973-09-18 |
DE2063380C3 (en) | 1980-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |