US4208648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensor panel for locating a load
Assignee: ZF Friedrichshafen AG
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Filing: 1978-08-17
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Granted: 1980-06-17
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Expires: 1998-08-17
Abstract
Abstract A sensor panel for sensing the location and/or shape of a load superimposed on one face of the panel includes a plate consisting essentially of an electrically conductive material varying in electric conductivity in response to a pressure applied in the direction of plate thickness. Two groups of transversely spaced conductors elongated in respective common directions perpendicular to each other are secured to the two faces of the plate in electrically conductive contact.
Inventors
- 👤 Karlheinz Naumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/004; B; B23; B23Q; B23Q41/00; B23Q41/02; B25; B25J; B25J13/00; B25J13/08; B25J13/081; G01B7/28; G01L; G01L1/00; G01L1/20; G01L1/205; G06; G06V; G06V20/00; G06V20/60; G06V20/64
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A sensor panel for sensing a load superimposed on one face of said panel, the panel comprising: (a) a plate member having two faces defining therebetween the thickness of said panel, (1) each of said faces having a width and length greater than said thickness, (2) said plate member consisting essentially of an electrically conductive material varying in electric conductivity in response to pressure applied to said plate member in the direction of said thickness; (b) a first group of conductors elongated in a common first direction and transversely spaced from each other; (c) a second group of conductors elongated in a common second direction and transversely spaced from each other, (1) said groups being respectively secured to said faces in electrically conductive contact, (2) said first a second directions being angularly offset from each other.
Claim 2
Dependent Claim
136 words
A sensor panel for sensing a load superimposed on one face of said panel, the panel comprising: (a) a plate member having two faces defining therebetween the thickness of said panel, (1) each of said faces having a width and length greater than said thickness, (2) said plate member consisting essentially of an electrically conductive material varying in electric conductivity in response to pressure applied to said plate member in the direction of said thickness; (b) a first group of conductors elongated in a common first direction and transversely spaced from each other; (c) a second group of conductors elongated in a common second direction and transversely spaced from each other, (1) said groups being respectively secured to said faces in electrically conductive contact, (2) said first a second directions being angularly offset from each other.
Claim 3
Dependent Claim
24 words
a panel as set forth in claim 1 further comprising a layer of a resilient, electrically insulating material superimposed on each of said groups.
Claim 4
Dependent Claim
49 words
A panel as set forth in claim 2, wherein said layers each have a face engaging the associated face of said plate member in area contact, said conductors of each group being recessed in at least one of the engaged faces of said plate member and of said layer.
Claim 5
Dependent Claim
13 words
A panel as set forth in claim 2, wherein said conductors are metallic.
Claim 6
Dependent Claim
25 words
A panel as set forth in claim 2, further comprising two frames, the conductors of said groups being secured in respective frames under longitudinal tension.
Claim 7
Dependent Claim
26 words
A panel as set forth in claim 2, wherein the conductors of at least one of said groups consist essentially of electrically conductive synthetic resin composition.
Claim 8
Dependent Claim
34 words
A panel as set forth in claim 1, wherein the conductors of each group are substantially parallel to each other and elongated at approximately right angles relative to the conductors of the other group.
References Cited (Backward Citations)
US3509256A
Cited
US3836900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-17 | 1983-12-17 | 1984-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-17 | 1987-12-17 | 1988-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-17 | 1991-12-17 | 1992-06-17 | $7700.00 | Window Closed / Lapsed |