Patent US3565196A successfully refreshed from Google Patents.
US3565196A
Expired / Lapsed
US
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Mobile electrical weighing platform
Assignee: B L H ELECTRONICS Inc
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Filing: 1969-06-06
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Granted: 1971-02-23
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Expires: 1989-06-06
Abstract
Abstract A mobile electrical weighing platform or scale is suspended for precision measurements of loads by way of a plurality of sheartype load cells which are in purely ball-and-socket engagement with the platform during operation, and which are in entrapped and protected relations to the platform to prevent accidental separation or damage to electrical connections during transport, heightwise adjustment, and self-leveling installation.
Inventors
- 👤 Eric Laimins
- 👤 Charles Kadlec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:27
CPC Classifications
G; G01; G01G; G01G1/00; G01G1/18; G01G1/24; G01G3/00; G01G3/12; G01G3/14; G01G3/1402; G01G3/1408
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
Electrical weighing apparatus comprising a load-receiving platform, a plurality of load cells equipped with electrical strain gauges and disposed at laterally spaced positions beneath the platform, each of said load cells having a load-receivng portion exposed at the top thereof and a support position means forming a ball-and-socket type vertically separable connections between said exposed load-receiving portion of each of said cells and an overlying part of said platform, a plurality of relatively broad area support pads affixed one each to the support portion of each of said load cells and vertically adjustable in relation thereto for supporting and said platform in a spaced and levelled relation above an underlying support surface, means loosely entrapping said support portion of each of said cells with said platform and preventing misalignment of said ball-and-socket type connection due to vertical separation thereof, and stop means on said platform and each of said load cells limiting relative angular movements between each of said cells and said platform about a substantially vertical axis.
Claim 2
Dependent Claim
168 words
Electrical weighing apparatus comprising a load-receiving platform, a plurality of load cells equipped with electrical strain gauges and disposed at laterally spaced positions beneath the platform, each of said load cells having a load-receivng portion exposed at the top thereof and a support position means forming a ball-and-socket type vertically separable connections between said exposed load-receiving portion of each of said cells and an overlying part of said platform, a plurality of relatively broad area support pads affixed one each to the support portion of each of said load cells and vertically adjustable in relation thereto for supporting and said platform in a spaced and levelled relation above an underlying support surface, means loosely entrapping said support portion of each of said cells with said platform and preventing misalignment of said ball-and-socket type connection due to vertical separation thereof, and stop means on said platform and each of said load cells limiting relative angular movements between each of said cells and said platform about a substantially vertical axis.
Claim 3
Dependent Claim
110 words
Electrical weighing apparatus as set forth in claim 1 wherein said entrapping means comprises a peripheral annular flange about said support portion of each of said cells and a plurality of annular retainers secured with said platform one below each of said flanges, said flanges each having a lower spherically chamfered surface and each of said retainers having an upper spherically chamfered surface complementing that of the cooperating flange, thereby accommodating relative pivotal movements there between, said surfaces of said flanges and retainers being slight spaced vertically when said ball-and-socket type connections are fully mated and having substantially the same center of curvature as that of said ball-and-socket type connection.
Claim 4
Dependent Claim
53 words
Electrical weighing apparatus as set forth in claim 2 further comprising a flexible bellows-type boot associated with each of said load cells and connected at an upper end to the underside of said platform and at a lower end to said support pad in a surrounding and enclosing relation to said load cell.
Claim 5
Dependent Claim
64 words
Electrical weighing apparatus as set forth in claim 1 wherein each of aid ball-and-socket type connections includes a ball, a semispherical socket atop said load-receiving portion and means on the underside of said platform having a downwardly disposed recess for admitting and locating part of said ball therein, said ball being disposed partly in said socket and partly in said recess and entrapped therein.
Claim 6
Dependent Claim
83 words
Electrical weighing apparatus as set forth in claim 3 wherein said support portions of said load cells have substantially cylindrical external threaded surfaces, and wherein each of said support pads includes an internally threaded annular surface member engaged with the external threaded surface of an associated load cell, said annular member being mated coaxially with the remainder of said support pad in a relatively rotatable relation therewith about the longitudinal axis of said member and being fixed therewith in directions of said axis.
Claim 7
Dependent Claim
75 words
Electrical weighing apparatus as set Forth in claim 1 wherein each of said stop means limiting said relative angular movements comprises a stop pin mounted on said platform, and means forming a recess extending laterally into said load cell, said recess being slightly larger than said pin and said pin extending laterally into said recess, and flexible electrical cable means supported by said platform and connected with said load cell and said strain guages thereof.
Claim 8
Dependent Claim
78 words
Electrical weighing apparatus as set forth in claim 1 wherein said platform has a plurality of downwardly directed recesses one at each of said laterally spaced positions, wherein said ball-and-socket type connections are disposed within said recesses and the support portions of said cells extend downwardly out of said recesses, and wherein each of said load cells has a substantially vertical loading axis and the strain guages thereof respond to shearing effects produced by loadings along said axis.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |