Patent US4350051A successfully refreshed from Google Patents.
US4350051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interstitial gas probe
Assignee: Individual
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Filing: 1981-07-07
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Granted: 1982-09-21
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Expires: 2001-07-07
Abstract
Abstract A sample probe for obtaining relatively small subsurface gas samples for analysis during geo-chemical exploration. The probe is comprised of a long slender shaft capable of being driven into the soil and a hammer assembly which mounts to the shaft and is utilized to drive and remove the shaft. The shaft includes a passage for removal of interstitial gas and the passage may be mechanically sealed or opened while the probe is in place in the soil. The probe shaft also includes temperature, soil humidity and soil pH sensors which are utilized to obtain additional parameters to be considered during analysis of the gas samples.
Inventors
- 👤 C. Keith Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:10
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2294; G01N2001/2285
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
79 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface soil gas samples; a probe tip assembly, including a sealing surface, mounted at a first end of said passage; sealing means disposed within said passage; and actuating means at a second end of said passage for selectively enabling said sealing means to engage said sealing surface.
Claim 2
Dependent Claim
79 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface soil gas samples; a probe tip assembly, including a sealing surface, mounted at a first end of said passage; sealing means disposed within said passage; and actuating means at a second end of said passage for selectively enabling said sealing means to engage said sealing surface.
Claim 3
Dependent Claim
39 words
The probe according to claim 1 further including temperature sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said temperature sensing means to a measuring instrument.
Claim 4
Dependent Claim
42 words
The probe according to claim 1 further including a soil moisture sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil moisture sensing means to a measuring instrument.
Claim 5
Dependent Claim
42 words
The probe according to claim 1 further including a soil pH sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil pH sensing means to a measuring instrument.
Claim 6
Dependent Claim
112 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface gas samples; a probe tip assembly mounted at a first end of said passage, said probe tip assembly including a concave sealing surface disposed at the uppermost surface of said probe tip assembly; an elongated sealing member disposed within said passage and having a substantially spherical surface at the lower end thereof; and actuating means disposed at the upper end of said elongated sealing member for selectively urging said substantially spherical surface into engagement with said concave sealing surface.
Claim 7
Dependent Claim
112 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface gas samples; a probe tip assembly mounted at a first end of said passage, said probe tip assembly including a concave sealing surface disposed at the uppermost surface of said probe tip assembly; an elongated sealing member disposed within said passage and having a substantially spherical surface at the lower end thereof; and actuating means disposed at the upper end of said elongated sealing member for selectively urging said substantially spherical surface into engagement with said concave sealing surface.
Claim 8
Dependent Claim
23 words
The probe according to claim 5 further including means coaxially mounted on said elongated shaft for driving said elongated shaft into the soil.
Claim 9
Dependent Claim
21 words
The probe according to claim 5 wherein said probe tip further includes filtration devices for filtering said subsurface soil gas samples.
Claim 10
Dependent Claim
44 words
The probe according to claim 5 wherein said actuating means comprises a threaded surface disposed on said elongated shaft and a mated threaded element affixed to said elongated sealing member whereby rotation of said threaded element will raise and lower said elongated sealing member.
Claim 11
Dependent Claim
39 words
The probe according to claim 5 further including temperature sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said temperature sensing means to a measuring instrument.
Claim 12
Dependent Claim
42 words
The probe according to claim 5 further including a soil moisture sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil moisture sensing means to a measuring instrument.
Claim 13
Dependent Claim
42 words
The probe according to claim 5 further including a soil pH sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil pH sensing means to a measuring instrument.
Claim 14
Dependent Claim
140 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface gas samples; a probe tip assembly mounted at a first end of said passage, said probe tip assembly including a substantially pointed penetrating member, a first gas passage disposed transversely above said substantially pointed penetrating member and a second gas passage connecting said first gas passage and a concave sealing surface disposed at the uppermost surface of said probe tip assembly; an elongated sealing member disposed within said passage and having a substantially spherical surface at the lower end thereof; and actuating means disposed at the upper end of said elongated sealing member for selectively urging said substantially spherical surface into engagement with said concave sealing surface.
Claim 15
Dependent Claim
140 words
A probe for use in withdrawing subsurface soil gas samples, said probe comprising: an elongated shaft capable of being driven into the soil, said elongated shaft including a passage for removal of subsurface gas samples; a probe tip assembly mounted at a first end of said passage, said probe tip assembly including a substantially pointed penetrating member, a first gas passage disposed transversely above said substantially pointed penetrating member and a second gas passage connecting said first gas passage and a concave sealing surface disposed at the uppermost surface of said probe tip assembly; an elongated sealing member disposed within said passage and having a substantially spherical surface at the lower end thereof; and actuating means disposed at the upper end of said elongated sealing member for selectively urging said substantially spherical surface into engagement with said concave sealing surface.
Claim 16
Dependent Claim
23 words
The probe according to claim 12 further including means coaxially mounted on said elongated shaft for driving said elongated shaft into the soil.
Claim 17
Dependent Claim
27 words
The probe according to claim 12 wherein said probe tip further includes filtration devices disposed in said first gas passage for filtering said subsurface soil gas samples.
Claim 18
Dependent Claim
44 words
The probe according to claim 12 wherein said actuating means comprises a threaded surface disposed on said elongated shaft and a mated threaded element affixed to said elongated sealing member whereby rotation of said threaded element will raise and lower said elongated sealing member.
Claim 19
Dependent Claim
39 words
The probe according to claim 12 further including temperature sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said temperature sensing means to a measuring instrument.
Claim 20
Dependent Claim
42 words
The probe according to claim 12 further including a soil moisture sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil moisture sensing means to a measuring instrument.
Claim 21
Dependent Claim
42 words
The probe according to claim 12 further including a soil pH sensing means disposed at said probe tip assembly and coupling means disposed at said second end of said elongated shaft for coupling said soil pH sensing means to a measuring instrument.
References Cited (Backward Citations)
US1901431A
Cited
US2479787A
Cited
GB697606A
Cited
US2793527A
Cited
US3490288A
Cited
US3835710A
Cited
GB1420747A
Cited
US4261203A
Cited
US4310057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |