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US3698385A Expired / Lapsed US ⏱️ 0.0 years remaining

Reaction tester

Assignee: National Aeronautics and Space Administration
•
Filing: 1970-10-07
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Granted: 1972-10-17
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Expires: 1990-10-07
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Abstract

Abstract A reaction tester is disclosed for testing the simple and disjunctive reaction of a subject to light stimuli. The embodiment disclosed is in the form of a bar member which has spaced grooves for receiving the index fingers of a subject. Near the bottom of each groove are openings aligned along a transverse axis to a groove and a light beam is projected through the openings to a photo transistor. The subject''s finger breaks the light beam and when the finger is moved relative to the groove, the light beam actuates the transistor. A logic circuit is provided to interconnect the ''''reaction key,'''' above defined, to a panel having neon light indicators. A ''''ready,'''' ''''left'''' and ''''right'''' neon light indicators are selectively actuatable. The ''''ready'''' light informs the subject that the test will begin. Next, either the ''''left'''' or ''''right'''' or both lights are actuated through the logic circuit. A counter is started and when the subject reacts by moving the correct finger, the light indicator is extinguished and the counter is stopped. An incorrect reaction causes an error indicator to operate.

Inventors

  • 👤 Harry H Brown

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 04:00
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/16; A61B5/162

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 118 words
A reaction tester for determining the simple and disjunctive reaction time of a subject to light stimuli comprising: stimuli for the subject, means initiating the stimuli, means measuring the length of time commencing with the initiation of the stimuli, key means including a support having at least one groove for receiving a digit of a subject, sensing means including aligned openings disposed along an axis transverse to the axis of said groove, and light means and a photo transistor detector means aligned with said openings to provide a light path interruptible by a digit, and means responsive to said detector means for obtaining an indication of time reaction when a digit is moved out of said light path.
Claim 2
Dependent Claim 118 words
A reaction tester for determining the simple and disjunctive reaction time of a subject to light stimuli comprising: stimuli for the subject, means initiating the stimuli, means measuring the length of time commencing with the initiation of the stimuli, key means including a support having at least one groove for receiving a digit of a subject, sensing means including aligned openings disposed along an axis transverse to the axis of said groove, and light means and a photo transistor detector means aligned with said openings to provide a light path interruptible by a digit, and means responsive to said detector means for obtaining an indication of time reaction when a digit is moved out of said light path.
Claim 3
Dependent Claim 43 words
The apparatus of claim 1 and further including spaced grooves in said support, light and photo transistor detector means for each of said grooves, and neon light indicating means responsive to operation of each of said detector means for indicating a time reaction.
Claim 4
Dependent Claim 12 words
The apparatus of claim 2 wherein said light means are incandescent lamps.
Claim 5
Dependent Claim 31 words
The apparatus of claim 3 wherein said indicating means is included in logic circuit means having a ready, neon light indication means and a left and right neon light indication means.
Claim 6
Dependent Claim 52 words
The apparatus of claim 4 and further including in the logic circuit means, a left input means and a right input means, and counter means actuatable by an input means and a detector means for determining the time response between the operation of a light stimuli and operation of a detector means.
Claim 7
Dependent Claim 29 words
The apparatus of claim 5 wherein said logic circuit further includes error circuit means operable in response to actuation of a non-selected detecting means for indicating an incorrect selection.
Claim 8
Dependent Claim 34 words
The apparatus of claim 6 wherein said logic circuit further includes reset means operable in response to selection of a correct detecting means for extinguishing the light indicator means and stopping the counter means.
Claim 9
Dependent Claim 29 words
The apparatus of claim 5 wherein said logic circuit further includes a flip-flop circuit in said ready light indication means which enables said left and right light indicator means.
Claim 10
Dependent Claim 23 words
The apparatus of claim 5 wherein said ready light indication means, said left and right light indication means respectively have intensity control means.
Claim 11
Dependent Claim 34 words
The apparatus of claim 6 wherein said logic circuit further includes a flip-flop circuit in said ready light indication means for enabling said left and right light indicator means and said error circuit means.

References Cited (Backward Citations)

SU195038A1 Cited
US2678692A Cited
US3200814A Cited
US3322115A Cited
US3359975A Cited
US3503608A Cited
GB1165136A Cited
US3563230A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-17 1976-04-17 1976-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-17 1980-04-17 1980-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-17 1984-04-17 1984-10-17 $7700.00 Window Closed / Lapsed

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