US3755920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leg for a test dummy
Assignee: ALDERSON RES LAB
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Filing: 1972-06-09
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Granted: 1973-09-04
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Expires: 1992-06-09
Abstract
Abstract There is disclosed a leg for a test dummy which has a range of motion about the knee joint similar to that of the human and greater than the motion range of prior art legs. This is achieved by offsetting the simulated bone of the lower leg and molding a compressible cavity into the calf portion of the leg. The knee includes an impact housing connected directly to the upper leg bone structure so that knee impacts are not transmitted through the joint. The foregoing abstract is not to be taken either as a complete exposition or as a limitation of the present invention. In order to understand the full nature and extent of the technical disclosure of this application, reference must be had to the following detailed description and the accompanying drawings as well as to the claims.
Inventors
- 👤 J Smrcka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; G09B23/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
53 words
A leg for a test dummy which comprises: an upper leg member; a knee joint secured to the upper leg member; and a lower leg member secured to said knee joint including a simulated lower leg bone having a resilient covering simulating flesh, said covering defining a compressible cavity in the calf portion.
Claim 2
Dependent Claim
53 words
A leg for a test dummy which comprises: an upper leg member; a knee joint secured to the upper leg member; and a lower leg member secured to said knee joint including a simulated lower leg bone having a resilient covering simulating flesh, said covering defining a compressible cavity in the calf portion.
Claim 3
Dependent Claim
30 words
The leg of claim 1 wherein said simulated lower leg bone is offset forwardly from a line extending between the center of rotation of the knee joint and the ankle.
Claim 4
Dependent Claim
65 words
The leg of claim 1 wherein said knee joint comprises: an impact housing secured to said upper leg member and having a substantially cylindrical surface of revolution adjacent said lower leg member; first and second bars pivotally secured to opposite sides of said housing to rotate about the axis of revolution; and a plate member secured between said bars and to said lower leg bone.
Claim 5
Dependent Claim
34 words
The leg of claim 3 wherein said plate member and said simulated lower leg bone are offset forwardly from a line extending between the center of rotation of the knee joint and the ankle.
Claim 6
Dependent Claim
63 words
The leg of claim 1 wherein said upper leg member comprises: a tube forming a portion of a simulated upper leg bone; a link rod forming another portion of the simulated upper leg bone; means for detechably securing one end of said link rod to said tube; and means for detachably securing the other end of said link rod to said knee joint.
Claim 7
Dependent Claim
24 words
The leg of claim 5 wherein said upper leg member further comprises: first and second simulated leg flesh segments abutting intermediate said securing means.
Claim 8
Dependent Claim
67 words
A leg for a test dummy which comprises: an upper leg member; an impact housing secured to said upper leg member and having a substantially cylindrical surface of revolution; first and second bars pivotally secured to opposite sides of said housing to rotate about the axis of revolution; and a lower leg member secured to said first and second bars for rotation adjacent said surface of revolution.
Claim 9
Dependent Claim
67 words
A leg for a test dummy which comprises: an upper leg member; an impact housing secured to said upper leg member and having a substantially cylindrical surface of revolution; first and second bars pivotally secured to opposite sides of said housing to rotate about the axis of revolution; and a lower leg member secured to said first and second bars for rotation adjacent said surface of revolution.
Claim 10
Dependent Claim
63 words
The leg of claim 7 wherein said upper leg member comprises: a tube forming a portion of a simulated upper leg bone; a link rod forming another portion of the simulated upper leg bone; means for detachably securing one end of said link rod to said tube; and means for detachably securing the other end of said link rod to said impact housing.
Claim 11
Dependent Claim
33 words
The leg of claim 8 wherein said lower leg member comprises a simulated lower leg bone offset forwardly from a line extending between the axis of rotation of said bars and the ankle.
Claim 12
Dependent Claim
26 words
The leg of claim 9 wherein said lower leg member comprises a resilient covering simulating flesh, said covering defining a compressible cavity in the calf portion.
References Cited (Backward Citations)
US3557471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |