US4576579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instructional and testing apparatus with switch closure at two different depths
Assignee: Individual
•
Filing: 1984-07-23
•
Granted: 1986-03-18
•
Expires: 2004-07-23
Abstract
Abstract This invention provides students with immediate feedback as to the correctness of their responses by closing switches at two different depths. A holding frame aligns six sheets in layers, one above another. Holes that are punched through some of the six sheets of material are all aligned on the same grid pattern. The top sheet is an instructional sheet that has response areas punched in it at the site of correct and incorrect answers. The second sheet down contains no holes, is elastic and electroconductive, and hides the depth of the underlying holes from the student. The third sheet down is non-conductive and has the entire grid of holes punched in it. The fourth sheet down is electroconductive, and has holes punched in it only at correct answer areas. The fifth sheet down is non-conductive and has holes punched in it only at correct answer areas. The sixth sheet down is non-conductive, but contains electroconductive inserts at all correct answer areas. Instructional sheets have all incorrect answers by response areas that are over shallow holes, and have all correct answers by response areas that are above deep holes. Electric circuits that indicate to the student when he has made a correct or incorrect selection are completed when the student uses a stylus to push the elastic electroconductive sheet to the bottom of the shallow or deep hole where this sheet contacts other electroconductive material.
Inventors
- 👤 J. Richard Harte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:19
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06; G09B7/063
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
315 words
An instructional apparatus comprising: an instructional sheet having zones thereon indicating at least two types of answer choices, holding means provided with an upper surface for receiving said instructional sheet, and including a support member presenting said surface and having holes therein in alignment with corresponding zones on said instructional sheet, an electrically conductive, elastic sheet element sandwiched between said instructional sheet and said upper surface and having a normal, planar disposition, said sheet element being capable of substantial deflection into an individual hole in said member when a stylus is applied to a selected zone on said instructional sheet, electrical contact structure beneath said member and engageable by a deflected portion of said sheet element when said portion is pushed through a corresponding hole in said member by said stylus, said structure having contact means disposed at two different depths relative to said surface corresponding to said two types of answer choices, said contact means including a second electrically conductive sheet element underlying said member and engageable by said deflected portion of the elastic sheet element upon deflection thereof to one of said two different depths, said structure further having a third sheet element underlying said second element and provided with openings therein corresponding to the type of answer choice represented by the greater of said two different depths, and said contact means further including components thereof beneath said third sheet element at said greater depth in alignment with respective openings in said third sheet element for engagement by said conductive sheet element upon deflection of a part thereof by a stylus through a corresponding opening in said third element in response to the selection of an answer choice corresponding to the greater depth, and circuit means connected to said elastic sheet element and said contact means for communicating the types of responses of a student to electrical apparatus for feedback or information processing.
Claim 2
Dependent Claim
315 words
An instructional apparatus comprising: an instructional sheet having zones thereon indicating at least two types of answer choices, holding means provided with an upper surface for receiving said instructional sheet, and including a support member presenting said surface and having holes therein in alignment with corresponding zones on said instructional sheet, an electrically conductive, elastic sheet element sandwiched between said instructional sheet and said upper surface and having a normal, planar disposition, said sheet element being capable of substantial deflection into an individual hole in said member when a stylus is applied to a selected zone on said instructional sheet, electrical contact structure beneath said member and engageable by a deflected portion of said sheet element when said portion is pushed through a corresponding hole in said member by said stylus, said structure having contact means disposed at two different depths relative to said surface corresponding to said two types of answer choices, said contact means including a second electrically conductive sheet element underlying said member and engageable by said deflected portion of the elastic sheet element upon deflection thereof to one of said two different depths, said structure further having a third sheet element underlying said second element and provided with openings therein corresponding to the type of answer choice represented by the greater of said two different depths, and said contact means further including components thereof beneath said third sheet element at said greater depth in alignment with respective openings in said third sheet element for engagement by said conductive sheet element upon deflection of a part thereof by a stylus through a corresponding opening in said third element in response to the selection of an answer choice corresponding to the greater depth, and circuit means connected to said elastic sheet element and said contact means for communicating the types of responses of a student to electrical apparatus for feedback or information processing.
Claim 3
Dependent Claim
31 words
The instructional apparatus as claimed in claim 1, wherein said second sheet element is rigid and apertured to permit deflection of said elastic sheet element into engagement with said contact components.
Claim 4
Dependent Claim
41 words
The instructional apparatus as claimed in claim 1, wherein said second sheet element is elastic and is deflected by said elastic sheet element into engagement with an individual contact component upon selection of an answer choice corresponding to said greater depth.
Claim 5
Dependent Claim
244 words
An instructional apparatus comprising: an instructional sheet having zones thereon indicating at least two types of answer choices, correct and incorrect, holding means provided with an upper surface for receiving said instructional sheet, and including a sheet-like member presenting said surface and having holes therethrough in alignment with corresponding zones on said instructional sheet, a first electrically conductive, elastic sheet element sandwiched between said instructional sheet and said upper surface and having a normal, planar disposition, said first sheet element being capable of substantial deflection into an individual hole in said member when a stylus is applied to a selected zone on said instructional sheet, a second electrically conductive sheet element underlying said member and engageable by a deflected portion of said first sheet element when said portion is pushed through a corresponding hole in said member by said stylus, a third sheet element underlying said second element and having openings therein corresponding to one of said types of answer choices, electrical contact means beneath said third sheet element in alignment with respective openings therein for engagement by said first, conductive sheet element upon deflection of a part thereof by a stylus through a corresponding opening in said third element in response to the selection of an answer of said one type, and circuit means connected to said first and second sheet elements and said contact means for communicating the types of responses of a student to electrical apparatus for feedback or information processing.
Claim 6
Dependent Claim
244 words
An instructional apparatus comprising: an instructional sheet having zones thereon indicating at least two types of answer choices, correct and incorrect, holding means provided with an upper surface for receiving said instructional sheet, and including a sheet-like member presenting said surface and having holes therethrough in alignment with corresponding zones on said instructional sheet, a first electrically conductive, elastic sheet element sandwiched between said instructional sheet and said upper surface and having a normal, planar disposition, said first sheet element being capable of substantial deflection into an individual hole in said member when a stylus is applied to a selected zone on said instructional sheet, a second electrically conductive sheet element underlying said member and engageable by a deflected portion of said first sheet element when said portion is pushed through a corresponding hole in said member by said stylus, a third sheet element underlying said second element and having openings therein corresponding to one of said types of answer choices, electrical contact means beneath said third sheet element in alignment with respective openings therein for engagement by said first, conductive sheet element upon deflection of a part thereof by a stylus through a corresponding opening in said third element in response to the selection of an answer of said one type, and circuit means connected to said first and second sheet elements and said contact means for communicating the types of responses of a student to electrical apparatus for feedback or information processing.
References Cited (Backward Citations)
US1644160A
Cited
US2540363A
Cited
US3057082A
Cited
US3106027A
Cited
US3177595A
Cited
US3421231A
Cited
US3771240A
Cited
US3747229A
Cited
US3902255A
Cited
US3949489A
Cited
US3964176A
Cited
US4010553A
Cited
US4065858A
Cited
US4300029A
Cited
US4302647A
Cited
US4449943A
Cited
US4453920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |