US3905433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weigh devices
Assignee: Arthur Guinness Son and Co Great Britain Ltd
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Filing: 1974-09-12
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Granted: 1975-09-16
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Expires: 1994-09-12
Abstract
Abstract A weigh device comprising at least two substantially parallel diaphragms secured in overlying and vertically spaced relationship by a support frame, the diaphragms being substantially rigid in the planes of their extent and having a degree of flexibility in a direction normal to such planes; rigid coupling means extending between and secured to the diaphragms at a position remote from the support frame; a substantially horizontal platform rigidly secured relative to, and in substantially vertical alignment with, the coupling means, said platform being intended to receive an article to be weighed; and a measuring device responsive to vertical displacement of, or vertical loading on, the coupling means relative to the support frame as a result of an article being supported on the platform from which displacement or loading the weight of the article may be determined.
Inventors
- 👤 Stephen Henry Raynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:31
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/02; G01G19/03; G01G21/00; G01G23/00; G01G23/06; G01G23/12; G01G3/00; G01G3/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
238 words
A weigh device comprising at least two substantially parallel diaphragms secured in overlying and vertically spaced relationship by rigid tubular support means, the diaphragms being substantially rigid in the planes of their extent and having a degree of flexibility in a direction normal to such planes; rigid coupling means located within the confines of said tubular support means, said coupling means extending axially between and being secured to the diaphragms at positions remote from the support means and substantially centrally thereof; a substantially horizontal platform rigidly secured relative to one of said means and in substantially vertical alignment with that said means, said platform being intended to receive an article to be wEighed; a measuring device responsive to relative vertical displacement of, or relative vertical loading on, the one said means relative to the other said means as a result of an article being supported on the platform from which displacement or loading the weight of the article may be determined; and wherein said diaphragms each have an array of radially extending reinforcing means thereon which are circumferentially spaced relative to the axis of the coupling means and provide localized stiffness in the diaphragms radially relative to said axis, each said reinforcing means having an elongated configuration and being located on its respective diaphragm with the larger dimension lying radially relative to said axis over the portion of the diaphragm between said support means and said connecting means.
Claim 2
Dependent Claim
238 words
A weigh device comprising at least two substantially parallel diaphragms secured in overlying and vertically spaced relationship by rigid tubular support means, the diaphragms being substantially rigid in the planes of their extent and having a degree of flexibility in a direction normal to such planes; rigid coupling means located within the confines of said tubular support means, said coupling means extending axially between and being secured to the diaphragms at positions remote from the support means and substantially centrally thereof; a substantially horizontal platform rigidly secured relative to one of said means and in substantially vertical alignment with that said means, said platform being intended to receive an article to be wEighed; a measuring device responsive to relative vertical displacement of, or relative vertical loading on, the one said means relative to the other said means as a result of an article being supported on the platform from which displacement or loading the weight of the article may be determined; and wherein said diaphragms each have an array of radially extending reinforcing means thereon which are circumferentially spaced relative to the axis of the coupling means and provide localized stiffness in the diaphragms radially relative to said axis, each said reinforcing means having an elongated configuration and being located on its respective diaphragm with the larger dimension lying radially relative to said axis over the portion of the diaphragm between said support means and said connecting means.
Claim 3
Dependent Claim
51 words
A weigh device as claimed in claim 1 in which the diaphragms are of generally circular form and are secured substantially around their circumferential edge to tubular cylindrical support means to extend radially inwardly thereof to the coupling means, and wherein the coupling means is generally coaxial with the support means.
Claim 4
Dependent Claim
39 words
A weigh device as claimed in claim 1 wherein the radially extending array of reinforcing means comprises a circumferentially spaced array of axial depressions in the diaphragms which extend generally radially between the coupling means and the support means.
Claim 5
Dependent Claim
63 words
A weigh device as claimed in claim 1 wherein the diaphragms have, in a neutral position of the device, radially compressive stress in the parts which extend between the support means and the coupling means so that, for a predetermined distance, said diaphragms exhibit minimal resistance to vertical displacement, from the said neutral position, of the coupling means relative to the support means.
Claim 6
Dependent Claim
79 words
A weigh device as claimed in claim 1 wherein the coupling means has an abutment part which overlies the support means and is displaceable vertically downwardly with the coupling means; said abutment part being so arranged that in a neutral position of the device it is clear of the support means but, after a predetermined distance of downward displacement of the coupling means relative to the support means, it abuts the support means to prevent overstressing of the diaphragms.
Claim 7
Dependent Claim
83 words
A weigh device as claimed in claim 1 wherein the coupling means has an, or a second, abutment part which underlies the support means and is displaceable vertically upwardly with the coupling means; said second abutment part being so arranged that in a neutral position of the device it is clear of the support frame but, after a predetermined distance of upward displacement of the coupling means relative to the support frame, it abuts the support frame to prevent overstressing of the diaphragms.
Claim 8
Dependent Claim
22 words
A weigh device as claimed in claim 1 wherein the measuring device is carried by a rigid extension of the support means.
Claim 9
Dependent Claim
30 words
A weigh device as claimed in claim 1 wherein spring loaded adjustment means is provided for vertically displacing to a predetermined position the coupling means relative to the support means.
Claim 10
Dependent Claim
36 words
A weigh device as claimed in claim 1 wherein the measuring device provides a direct measurement of vertical load applied thereto through the coupling means as a result of a load being applied to the platform.
Claim 11
Dependent Claim
52 words
A weigh device as claimed in claim 1 wherein the measuring device is responsive to vertical displacement of the coupling means relative to the support means which displacement provides an indication of a load applied to the platform and from which the weight of the load on the platform can be determined.
Claim 12
Dependent Claim
54 words
A weigh device as claimed in claim 2 wherein the coupling means comprises a cylindrical body and two annular diaphragms are provided which are secured one at each end of, and substantially around their inner circumferential edge to, the cylindrical body coupling means and to the respectively adjacent ends of the tubular support means.
Claim 13
Dependent Claim
80 words
A weigh device as claimed in cLaim 11 in which the cylindrical body of the coupling means is tubular and the said two diaphragms have axially extending flanges on their inner and outer circumferential edges, and wherein the inner flanges engage within the respective ends of the tubular coupling means and the outer flanges engage with the respective ends of the tubular support means and said flanges are respectively secured to the coupling means and support means by clamping rings.
Claim 14
Dependent Claim
30 words
A weigh device as claimed in claim 6 wherein the measuring device is responsive to vertical displacement of, or vertical loading derived from, plate means comprising said second abutment part.
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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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |