Patent US3683892A successfully refreshed from Google Patents.
US3683892A
Expired / Lapsed
US
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Device for the extraction of core samples
Assignee: Battelle Development Corp
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Filing: 1970-07-13
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Granted: 1972-08-15
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Expires: 1990-07-13
Abstract
Abstract Described herein is a device useful for extraction of core samples from, e.g., muscle tissue of live animals and carcasses. The device is comprised of an extractor body sharpened at one end and hollow to receive a core cut by the sharpened end as it advances into sampled tissue, the forward end of the body being provided with a blade inwardly pivotally responsive to, e.g., muscle tissue backflow to sever the base of the core from surrounding tissue. The extractor is preferably affixed to thrust-generating means which withdraw the extractor body and contained core from sampled tissue when a predetermined degree of advance has occurred.
Inventors
- 👤 Roy M Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B17/00; A61B17/32; A61B17/320016; A61B2017/32004
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A device for the extraction of core samples comprising an elongated hollow extractor body having a terminal cutting edge on the forward end thereof, said extractor body being adapted to receive therewithin a core cut by said terminal edge, and severing means pivotally mounted in an opening in one wall of said extractor body adjacent the forward end thereof, said severing means extending from said pivotal mount in a direction away from said terminal cutting edge, said severing means having a cutting edge opposite said pivotal mount and a length greater than the internal dimensiOn of said extractor body and adapted to pivot inwardly from said wall into said extractor body upon withdrawal of said extractor body from a core channel cut by said terminal edge, in response to backflow of material from which such core is cut, to sever the base of such core and retain the same within said extractor body to be withdrawn with said extractor body, and means associated with said body to permit removal of such core sample.
Claim 2
Independent Claim
173 words
A device for the extraction of core samples comprising an elongated hollow extractor body having a terminal cutting edge on the forward end thereof, said extractor body being adapted to receive therewithin a core cut by said terminal edge, and severing means pivotally mounted in an opening in one wall of said extractor body adjacent the forward end thereof, said severing means extending from said pivotal mount in a direction away from said terminal cutting edge, said severing means having a cutting edge opposite said pivotal mount and a length greater than the internal dimensiOn of said extractor body and adapted to pivot inwardly from said wall into said extractor body upon withdrawal of said extractor body from a core channel cut by said terminal edge, in response to backflow of material from which such core is cut, to sever the base of such core and retain the same within said extractor body to be withdrawn with said extractor body, and means associated with said body to permit removal of such core sample.
Claim 3
Dependent Claim
32 words
The device of claim 1 which additionally comprises thrust-generating means affixed to the rearward end of said body and adapted to drive said body forward with force sufficient to cut said core.
Claim 4
Dependent Claim
39 words
The device of claim 2 wherein said thrust generating means comprise advance-retreat means adapted to automatically retreat when a predetermined degree of advance has occurred, whereby upon retreat the said body containing said core is withdrawn from said channel.
Claim 5
Dependent Claim
30 words
The device of claim 1 wherein the radius of pivot is such that said severing means is restrained by the opposite wall of said body from pivoting through 90* .
Claim 6
Dependent Claim
27 words
The device of claim 4 wherein said removal means comprises at least one core removal slot intermediate the severing means and the rearward end of the body.
Claim 7
Dependent Claim
32 words
The device of claim 1 wherein the radius of pivot is such that the rearward edge of said opening serves as a stop preventing pivoting of said means outwardly of said body.
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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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |