US3753201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistances for an electrical circuit
Assignee: Individual
•
Filing: 1970-10-29
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Granted: 1973-08-14
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Expires: 1990-10-29
Abstract
Abstract Apparatus for predeterminately and progressively interconnecting input and output conductors of a multiplicity of supply lines for fluid or electrical sources utilizes a slide fastener or coupling system which utilizes a pair of opposed strip flexible sections carrying adjacent to their opposed longitudinal edges, cooperating interconnecting media. One or more slide members slidable longitudinally of said strips progressively engage portions of said opposed interconnecting media to interlock the same progressively drawing said opposing edges closely together and in so doing, when slidably applied in one direction, to interconnect predetermined pairs of spaced conductors attached to said strip and having each in communication with an electrical or fluid source whereby when said slide member is actuated in one direction interconnection of predetermined pairs of conductors is effected and when said slide element is actuated in the opposite direction all of said sets of conductors become disconnected.
Inventors
- 👤 L Ohman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:25
CPC Classifications
H; H01; H01R; H01R9/00; H01C; H01C10/00; H01C10/06; H01C10/08; H01R4/00; H01R4/58; H01H; H01H1/00; H01H1/12; H01H2001/125
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
187 words
Apparatus for predeterminately interconnecting electrical input and output conductors and for inherently and multifunctionally providing widely variable resistances for an electrical circuit having in combination, a pair of carrying sections constructed of dielectric material having opposed longitudinal edges, a slide fastener mechanism having two sets of interlocking media constituting elongate continuous small helical elements constructed of electrically conductive material having preselected resistance qualities, one of said sets being secured to the opposing edge of one of said sections and the second set being secured to the opposing edge of the second carrying section, a camming slide member for progressively interlocking said pair of cooperating media when moved in one direction, and for progressively unlocking and separating the elements of said cooperating media when moved in the opposite direction, the number of cooperative interlocking of said conductive resistant elements being interconnected determining the amount of resistance provided for an electrical circuit, a conductor for electrically connecting the interlocking medium carried by one of said sections with a source of electricity, and at least one conductive tap conductor electrically connected with the interlocking medium carried by the opposing section.
Claim 2
Dependent Claim
187 words
Apparatus for predeterminately interconnecting electrical input and output conductors and for inherently and multifunctionally providing widely variable resistances for an electrical circuit having in combination, a pair of carrying sections constructed of dielectric material having opposed longitudinal edges, a slide fastener mechanism having two sets of interlocking media constituting elongate continuous small helical elements constructed of electrically conductive material having preselected resistance qualities, one of said sets being secured to the opposing edge of one of said sections and the second set being secured to the opposing edge of the second carrying section, a camming slide member for progressively interlocking said pair of cooperating media when moved in one direction, and for progressively unlocking and separating the elements of said cooperating media when moved in the opposite direction, the number of cooperative interlocking of said conductive resistant elements being interconnected determining the amount of resistance provided for an electrical circuit, a conductor for electrically connecting the interlocking medium carried by one of said sections with a source of electricity, and at least one conductive tap conductor electrically connected with the interlocking medium carried by the opposing section.
Claim 3
Dependent Claim
28 words
The structure and combination set forth in claim 1 wherein said tap conductor is in the form of a flexible electrical conductor connected with said cam slide element.
Claim 4
Dependent Claim
51 words
The structure and combination set forth in claim 1 wherein said conductor has branch connections with one set of said interlocking medium at a plurality of longitudinally spaced points therein and wherein a plurality of tap conductors is electrically connected with predetermined longitudinally spaced interlocking elements carried by the opposing section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |