Patent US1215394A successfully refreshed from Google Patents.
US4979581A
Expired / Lapsed
US
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Low profile wheel scale assembly
Assignee: Individual
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Filing: 1989-03-09
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Granted: 1990-12-25
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Expires: 2009-03-09
Abstract
Abstract Wheel scale assemblies and load cell structures are provided for weighing loads. The invention provides a low profile portable wheel scale assembly of a predetermined height. The scale assembly has a thin lightweight base structure and a cooperating load platform. At least one load cell structure having strain gauges is in communication with the base structure and the load platform at predetermined locations and configurations. A platform support structure is provided to distribute the platform load. A unitary shear load cell structure contacts the weighing platform and provides a structural weight bearing component. The load cell structure has a unitary symmetrical load cell body. The load cell body has a centrally spanning elongated, deflectable beam structure. Opposing lateral indented beam portions form a central stress isolation web for the structural support and weighing of the load. Strain gauges are mounted in predetermined orientations to the parallel lateral beam walls. And, predetermined load cell configurations and arrangements are provided for low profile weighing scales.
Inventors
- 👤 William P. Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:10
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/02; G01G19/025; G01G19/027
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
A low profile, high capacity, portable and hand movable wheel load scale assembly of a predetermined height comprising: (a) a thin lightweight base structure having a length, a width and a central axis and further having an interiorly disposed opening having a bottom surface with means for placement and securing of load cell structures, (b) at least one pair of unitary load cell structures, each said load cell structure having strain gauge means mounted in a predetermined configuration, each said load cell structure further being mounted in a predetermined arrangement transverse said central axis and to said bottom surface placement means, and (c) a metallic planar load platform member having a top surface and a bottom surface with recesses at predetermined locations, each said bottom recess for receiving a load cell structure, each said bottom recess further having a rigid platform support structure having means for securing said platform support structure to said load platform member and to each said load cell structure.
Claim 2
Dependent Claim
163 words
A low profile, high capacity, portable and hand movable wheel load scale assembly of a predetermined height comprising: (a) a thin lightweight base structure having a length, a width and a central axis and further having an interiorly disposed opening having a bottom surface with means for placement and securing of load cell structures, (b) at least one pair of unitary load cell structures, each said load cell structure having strain gauge means mounted in a predetermined configuration, each said load cell structure further being mounted in a predetermined arrangement transverse said central axis and to said bottom surface placement means, and (c) a metallic planar load platform member having a top surface and a bottom surface with recesses at predetermined locations, each said bottom recess for receiving a load cell structure, each said bottom recess further having a rigid platform support structure having means for securing said platform support structure to said load platform member and to each said load cell structure.
Claim 3
Dependent Claim
62 words
The low profile portable wheel scale assembly of claim 1, wherein each said platform support structure is comprised of an inverted cupped metallic member having a flanged periphery for mounting in said wheel load platform member and having a central portion for nesting in said bottom recess of said platform member and further having means for connection to said load cell structure.
Claim 4
Dependent Claim
44 words
The low profile portable wheel scale assembly of claim 1, wherein said load cell placement means of said base structure and said predetermined recesses of said platform member have spacially parallel horizontal dimensions coextensive with each other and with each said load cell structure.
Claim 5
Dependent Claim
24 words
The low profile portable wheel scale assembly of claim 1, wherein each said platform support structure is comprised of a flat metallic plate member.
Claim 6
Dependent Claim
26 words
The low profile wheel scale assembly of claim 1, wherein said predetermined height of said wheel scale assembly is equal to or less than 1.5 inches.
Claim 7
Dependent Claim
97 words
The low profile portable wheel scale assembly of claim 1, wherein said base structure comprises a low profile vertical wall about the periphery of said bottom surface, said wall having an exterior downwardly angled upper edge, and wherein said platform member bottom surface has a horizontal dimension slightly less than the inside dimensions of said base structure wall periphery for vertical movement thereinto, said platform member top surface having a horizontal dimension constructed and arranged so that it cooperates with said base wall angled upper edge to provide a sloping entry peripheral surface for said scale assembly.
Claim 8
Dependent Claim
57 words
The low profile portable wheel scale assembly of claim 1, wherein said securing means of said support structure comprises at least one first aperture having first fastening means associated therewith and being connectable to each said load cell structure and at least one second aperture having second fastening means associated therewith for securement in said bottom recess.
Claim 9
Dependent Claim
65 words
The low profile portable wheel scale assembly of claim 1, wherein said load platform member has a bottom body portion that is comprised of a cast aluminum structure having a horizontal dimension to permit vertical movement into said base structure interior opening, said recesses comprising apertures in said bottom body portion, said load platform member further having a rigid metallic, top plate portion mounted thereon.
Claim 10
Dependent Claim
107 words
The low profile portable wheel wheel scale assembly of claim 1, wherein said load platform member further comprises a metallic top plate, a metallic cupped bottom plate having peripheral side walls and a longitudinal axis and further having longitudinally extending ribs disposed along its length and fixed between said top and bottom surfaces, said load platform member recesses comprising indentations in said bottom plate, said platform support structures being unitary with said cupped bottom plate and having means to fasten said load platform member to each said load cell structure, said cupped bottom plate further having dimensions to provide vertical movement into said base structure interior opening.
Claim 11
Dependent Claim
78 words
The low profile portable wheel scale assembly of claim 1, wherein said load platform member further comprises a metallic rigid body member, said load platform member recesses comprising apertures therein, and being in alignment with each said load cell structure and having peripheral recess areas about each said aperture, said load platform member further comprising a coextensive top plate structure, said platform support structures being mounted in said peripheral recess areas for attachment to said load cell structure.
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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) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |