Patent US4404839A successfully refreshed from Google Patents.
US4404839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing device for force measuring apparatus
Assignee: Marker International GmbH
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Filing: 1981-02-06
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Granted: 1983-09-20
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Expires: 2001-02-06
Abstract
Abstract To test the setting of safety ski bindings, a force testing device comprises a permanent magnet securable to a binding. The attractive force of the permanent magnet holds a soft iron plate comprising force engagement means on which the force producer of the binding can act.
Inventors
- 👤 Erich Geisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:42
CPC Classifications
G; G01; G01L; G01L25/00; G01L5/00; G01L5/03
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
80 words
A testing device for force measuring apparatus, said testing device comprising: base means; a magnet fixed to said base means; plate means of ferro magnetic material magnetically attracted to said magnet; force engaging means attached to said plate means for receiving applied forces; and spacing means for maintaining a uniform gap between said plate means and said magnet; wherein; said force engaging means urges said plate means from said magnet on the application of force to said force engaging means.
Claim 2
Dependent Claim
80 words
A testing device for force measuring apparatus, said testing device comprising: base means; a magnet fixed to said base means; plate means of ferro magnetic material magnetically attracted to said magnet; force engaging means attached to said plate means for receiving applied forces; and spacing means for maintaining a uniform gap between said plate means and said magnet; wherein; said force engaging means urges said plate means from said magnet on the application of force to said force engaging means.
Claim 3
Dependent Claim
40 words
A testing device according to claim 1, wherein said magnet is a hollow cylindrical magnet; said plate means comprises a circular disc; and said engaging means comprises a rod attached to said disc and slidably mountable in said cylindrical magnet.
Claim 4
Dependent Claim
29 words
A testing device according to claim 1, wherein said engaging means comprises a lever pivotally mounted to said base means and attached on one end to said plate means.
Claim 5
Dependent Claim
27 words
A testing device according to claim 3, said lever having force engagement points on each side of its pivot axis to which applied forces are selectively applied.
Claim 6
Dependent Claim
24 words
A testing device according to claim 1, claim 2, or claim 3, wherein said spacing means comprises uniformly shaped nodules attached to said magnet.
References Cited (Backward Citations)
US2909055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |