Patent US3623449A successfully refreshed from Google Patents.
US3623449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact acceleration indicator
Assignee: VEXILER Inc
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Filing: 1969-08-15
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Granted: 1971-11-30
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Expires: 1989-08-15
Abstract
Abstract A recording instrument which will produce a visual or electrical signal indicating when a preselected acceleration level has been experienced by the instrument, and will permanently record such impact so that when the instrument is attached to a package, a visual examination of the instrument will indicate whether or not the package has been dropped or subjected to a damaging impact.
Inventors
- 👤 Robert C Knutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14; G; G01; G01P; G01P15/00; G01P15/02; G01P15/03; G01P15/032; G01P15/036; G01P15/08; G01P15/135
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
189 words
Means for measuring mechanical acceleration including a housing having spaced walls, mass means in said housing mounted for movement with respect thereto, said mass means comprising a weight member, leaf-type spring means movable between first and second position, means mounting outer ends of said spring means between walls of said housing comprising supports spaced a lesser distance apart than the length of said spring means to bow said spring means with respect to a reference line passing through the supported ends of said spring means, said leaf spring means being deflectable from a first position on one side of said reference line joining said ends, to a second position on the opposite side of said reference line joining said ends, said spring means being movable to said second position under influence of said weight member, said weight member being separate from said spring means and including spaced-apart projections bearing on said spring means to actuate said spring means from its first position to its second position under influence of an acceleration force on said weight member, and means to indicate when said spring means is in its second position.
Claim 2
Dependent Claim
189 words
Means for measuring mechanical acceleration including a housing having spaced walls, mass means in said housing mounted for movement with respect thereto, said mass means comprising a weight member, leaf-type spring means movable between first and second position, means mounting outer ends of said spring means between walls of said housing comprising supports spaced a lesser distance apart than the length of said spring means to bow said spring means with respect to a reference line passing through the supported ends of said spring means, said leaf spring means being deflectable from a first position on one side of said reference line joining said ends, to a second position on the opposite side of said reference line joining said ends, said spring means being movable to said second position under influence of said weight member, said weight member being separate from said spring means and including spaced-apart projections bearing on said spring means to actuate said spring means from its first position to its second position under influence of an acceleration force on said weight member, and means to indicate when said spring means is in its second position.
Claim 3
Dependent Claim
25 words
The combination as specified in claim 1 and electrical contact means actuated by said spring when said mass moves said spring to said second position.
Claim 4
Dependent Claim
57 words
The combination as specified in claim 1 wherein said indicating means comprises an indicator button member attached to said spring means said indicator button being visible on the exterior of said housing when said spring means is in said second position and not substantially protruding from said housing when said spring means is in its first position.
Claim 5
Dependent Claim
34 words
The combination as specified in claim 1 and means on said housing comprising an opening to provide access to permit manually moving said spring means from its second position back to its first position.
Claim 6
Dependent Claim
40 words
The combination as specified in claim 1 wherein said indicator means comprises a window in one wall of said housing, and a display indicia movable with said spring means to indicate when said spring means moves to its second position.
Claim 7
Dependent Claim
65 words
The combination as specified in claim 1 wherein the projections of the weight member bear on said spring on opposite sides of a bisecting plane through the spring and each projection bearing on the spring at a distance measured from the bisecting plane to the bearing points substantial 8 to 16 percent of the distance from the bisecting plane to the ends of the spring.
Claim 8
Dependent Claim
24 words
The combination of claim 1 and stop means in said case to engage said spring when said spring has moved to said second position.
References Cited (Backward Citations)
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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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |