US3777843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic vibrator system
Assignee: ConocoPhillips Co
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Filing: 1971-10-18
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Granted: 1973-12-11
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Expires: 1991-10-18
Abstract
Abstract A seismic vibrator system for installation on the frame of a ground vehicle including a pair of two-way power cylinders each pivotally secured at one end thereof to the frame and fixedly secured at the opposite end thereof to a cross member. A vibrator is connected to each end of the cross member by means of a vibration-isolating air spring. The lower ends of the vibrators are secured to an earth-engaging base. Lifting members, interconnecting the vibrator and the cross member, are disclosed for lifting the vibrators and base in response to extension of the power cylinders. Extension and retraction of the two-way power cylinders alternately raises the vibrators and base from the ground for travel and lowers them to the ground for transmission of seismic shock waves into the ground. The cross member and power cylinders are adapted to be vibrationally isolated from the vibrators and base when the base is in contact with the ground. In operation the vehicle is partially supported by the base and the vibrators acting through the vibration isolating air springs.
Inventors
- 👤 D Fair
- 👤 J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:42
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/04; G01V1/09
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
268 words
A seismic vibrator system comprising: a frame; an extendable member having opposite ends and pivotally secured at one end thereof to said frame, the opposite end thereof extending upwardly from said frame; a cross member having opposite end portions and fixedly secured to the opposite end of said extendable member; vibrator means for inducing vibrations in the earth disposed beneath said cross member; lifting means interconnecting said vibrator means and said cross member, said lifting means being adapted for permitting limited movement of said vibrator means relative to said cross member and for suspending said vibrator means beneath said cross member when said vibrator means has reached a maximum limit of movement from said cross member; isolating means disposed between said cross member and said vibrator means for isolating the vibrations of said vibrator means from said cross member, said isolating means including at least one air spring interconnecting said cross member and said vibrator means; and said vibrator means including a first vibrator having an upper end portion and a lower end portion, said first vibrator being secured at the upper end portion thereof to at least one said air spring; a second vibrator having an upper end portion and a lower end portion, said second vibrator being secured at the upper end portion thereof to at least one said air spring; a base fixedly secured to the lower end portions of said first and second vibrators for engaging the surface of the earth; and said first and second vibrators being positioned, respectively, on opposite sides of said frame and said base being positioned beneath said frame.
Claim 2
Dependent Claim
268 words
A seismic vibrator system comprising: a frame; an extendable member having opposite ends and pivotally secured at one end thereof to said frame, the opposite end thereof extending upwardly from said frame; a cross member having opposite end portions and fixedly secured to the opposite end of said extendable member; vibrator means for inducing vibrations in the earth disposed beneath said cross member; lifting means interconnecting said vibrator means and said cross member, said lifting means being adapted for permitting limited movement of said vibrator means relative to said cross member and for suspending said vibrator means beneath said cross member when said vibrator means has reached a maximum limit of movement from said cross member; isolating means disposed between said cross member and said vibrator means for isolating the vibrations of said vibrator means from said cross member, said isolating means including at least one air spring interconnecting said cross member and said vibrator means; and said vibrator means including a first vibrator having an upper end portion and a lower end portion, said first vibrator being secured at the upper end portion thereof to at least one said air spring; a second vibrator having an upper end portion and a lower end portion, said second vibrator being secured at the upper end portion thereof to at least one said air spring; a base fixedly secured to the lower end portions of said first and second vibrators for engaging the surface of the earth; and said first and second vibrators being positioned, respectively, on opposite sides of said frame and said base being positioned beneath said frame.
Claim 3
Dependent Claim
145 words
A seismic vibrator system as defined in claim 1 wherein said lifting means is further characterized to include: a first pair of upwardly extending members fixedly secured to the upper end portion of said first vibrator and disposed on each side, respectively, of said cross member; a first lifting member fixedly secured to and interconnecting the upper end portions of said first pair of upwardly extending members and positioned above said cross member; a second pair of upwardly extending members fixedly secured to the upper end portioN of said second vibrator and disposed on each side, respectively, of said cross member; a second lifting member fixedly secured to and interconnecting the upper end portions of said second pair of upwardly extending members and positioned above said cross member; and said first and second pairs of upwardly extending members being slidably received by said cross member.
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |