US3885639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiproportion beam scales for measuring equal volumes of materials having different specific gravities
Assignee: Individual
•
Filing: 1974-11-07
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Granted: 1975-05-27
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Expires: 1994-11-07
Abstract
Abstract A beam scales for directly measuring a volume of material which is equal to the volume of an object having a specific gravity different from that of the material. The beam is provided at one end with a support for the object and at the other end with a support for the material and the supports are spaced from the fulcrum for the beam by distances inversely proportional to the specific gravity of the material and object, respectively. Adjustment to accommodate for the measurement of materials having different specific gravities is achieved through the provision of an adjustable fulcrum point or the provision of adjustable suspension points for the supports.
Inventors
- 👤 Robert B Mclarrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:44
CPC Classifications
G; G01; G01G; G01G1/00; G01G1/18; G01G23/00; G01G23/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
A beam scales for directly measuring a volume for material which is equal to the volume of an object having a specific gravity different from that of the material, said scales comprising: a balance beam; first support means at one end of the beam for supporting the object; second support means at the other end of the beam for supporting the volume of material to be measured; a fulcrum support disposed intermediate the ends of the beam and so positioned relative to the first and second support means that the beam balances when the volume of material supported on the support means equals the volume of an object supported on the first support means.
Claim 2
Dependent Claim
114 words
A beam scales for directly measuring a volume for material which is equal to the volume of an object having a specific gravity different from that of the material, said scales comprising: a balance beam; first support means at one end of the beam for supporting the object; second support means at the other end of the beam for supporting the volume of material to be measured; a fulcrum support disposed intermediate the ends of the beam and so positioned relative to the first and second support means that the beam balances when the volume of material supported on the support means equals the volume of an object supported on the first support means.
Claim 3
Dependent Claim
33 words
A beam scales, according to claim 1, wherein the first and second support means are spaced from the fulcrum supports by distances inversely proportional to the specific gravity of object and material, respectively.
Claim 4
Dependent Claim
37 words
A beam scales, according to claim 1, further comprising adjustment means to provide for relative adjustment of the distances between the support means and the fulcrum support to accommodate the measurement of materials having different specific gravities.
Claim 5
Dependent Claim
27 words
A beam scales, according to claim 3, wherein the adjustment means comprises means to selectively move the fulcrum support relative to the first and second support means.
Claim 6
Dependent Claim
25 words
A beam scales, according to claim 4, further comprising means to adjust the balance of the beam to accommodate for movement of the fulcrum support.
Claim 7
Dependent Claim
53 words
A beam scales, according to claim 5, wherein the fulcrum support comprises a knife edge and the adjustment means comprises a plurality of notches formed in the beam at longitudinally spaced positions relative to one another, each said notch being adapted for selective engagement with the knife edge to support the beam thereon.
Claim 8
Dependent Claim
28 words
A beam scales, according to claim 6, further comprising indicia for the notches to indicate the material for the measurement of which each of the notches is provided.
Claim 9
Dependent Claim
33 words
A beam scales, according to claim 3, wherein the adjustment means comprises means to selectively move the position of the first support means longitudinally of the beam and relative to the fulcrum support.
Claim 10
Dependent Claim
30 words
A beam scales, according to claim 3, wherein the adjustment means comprises means to selectively move the second support means longitudinally of the beam and relative to the fulcrum support.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |