US4774962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extracting human saliva
Assignee: WALTER SARSTEDT KUNSTSTOFF-SPRITZGUSSWERK
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Filing: 1986-09-23
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Granted: 1988-10-04
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Expires: 2006-09-23
Abstract
Abstract In a method of extracting human saliva a resilient absorbent inert body is chewed by a person and is subsequently introduced into a centrifuge tubule (11) provided with an apertured floor (13). The centrifuge tubule (11) is introduced into a centrifuge and subjected to a spinning process, whereupon the saliva is pressed out of the resilient body (12) and passes through the floor (13) into the lower part of the centrifuge tubule (11).
Inventors
- 👤 Peter Hebel
- 👤 Rainer Haeckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0045; A61B10/0051
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
A method of extracting human saliva comprising the steps of: introducing one chewable, absorbent and resilient inert body into the mouth of a human being, having the body chewed by the human being until the body has sucked itself full of saliva, taking the body of saliva out of the mouth, placing the resilient body on a partition of a centrifuge tubule, said partition having at least one hole sufficiently large to allow passage therethrough of clear saliva and of contaminations thereof, and centrifuging the saliva out of the resilient body held in place by the partition, through the at least one hole of the partition into a lower part of the centrifugal tubule, which forms a saliva containing vessel, with contaminations settling in a lowermost portion of said part.
Claim 2
Independent Claim
130 words
A method of extracting human saliva comprising the steps of: introducing one chewable, absorbent and resilient inert body into the mouth of a human being, having the body chewed by the human being until the body has sucked itself full of saliva, taking the body of saliva out of the mouth, placing the resilient body on a partition of a centrifuge tubule, said partition having at least one hole sufficiently large to allow passage therethrough of clear saliva and of contaminations thereof, and centrifuging the saliva out of the resilient body held in place by the partition, through the at least one hole of the partition into a lower part of the centrifugal tubule, which forms a saliva containing vessel, with contaminations settling in a lowermost portion of said part.
Claim 3
Dependent Claim
45 words
A method according to claim 1, comprising removing the resilient body from the centrifuge tubule after the saliva has been centrifuged out, and pouring the saliva which has been centrifuged out, out of the centrifuge tubule through the at least one hole in the partition.
Claim 4
Dependent Claim
73 words
A method according to claim 1, wherein the partition forms a lower portion of a tubular insert, comprising the steps of: arranging the tubular insert in the centrifuge tubule in such a way that the partition has a substantial distance from the base of the centrifuge tubule, and after centrifuging taking out the tubular insert with the partition from the centrifuge tubule, and tipping the spun off saliva out of the centrifuge tubule.
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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) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |