Patent US4336757A successfully refreshed from Google Patents.
US4336757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track switch
Assignee: Individual
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Filing: 1979-09-24
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Granted: 1982-06-29
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Expires: 1999-09-24
Abstract
Abstract A hospital curtain track system utilizing a track switch which permits the use of a single privacy curtain selectively for each of a pair of adjacent bed cubicles. One track switch unit between each two bed environment splices directly with the cubicle track and eliminates extra connecting parts including one complete track leg resulting in minimal installation time and expense. The switch utilizes a pull-chain actuated toggle for shifting a horizontally shiftable switch section into alignment with the desired curtain track.
Inventors
- 👤 Ellis I. Toder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:52
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0604; E05D15/0608; A; A47; A47H; A47H15/00; A47H15/02; A47H1/00; A47H1/04; A47H2001/045; E01; E01B; E01B2202/00; E01B2202/02; E01B2202/025; E05Y; E05Y2800/00; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
278 words
A track switch for use in a curtain track system of the type comprising first and second branch tracks and a common track, said track switch being adapted for operative coupling to each of said first and second and common tracks, said track switch including, (a) shiftable track means for selectively interconnecting said common track to one of said first and second branch tracks, said shiftable track means comprising first and second separate switch track sections fixedly intercoupled and movable as a unit, said first switch track section being movable into position to interconnect said first branch track to said common track when said actuating means is actuated in a first way, and said second switch track section being movable into position to interconnect said second branch track to said common track when said actuating means is actuated in a second way, (b) actuating means for selectively shifting said shiftable track means to connect said common track as desired to either of said first or second branch tracks, and (c) a hollow switch body having a closed top, a closed bottom having a central aperture, a pair of closed opposite side walls and a pair of opposite end walls intersecuring said top and bottom, one of said pair of end walls having a separate track-end receiving opening for each of said first and second branch tracks and the other of said pair of end walls having a track-end receiving opening for said common track, said shiftable track means comprising a slider unit held captive within said hollow switch body and closing the central aperture in said switch body bottom irrespective of the position of said shiftable track means.
Claim 2
Dependent Claim
278 words
A track switch for use in a curtain track system of the type comprising first and second branch tracks and a common track, said track switch being adapted for operative coupling to each of said first and second and common tracks, said track switch including, (a) shiftable track means for selectively interconnecting said common track to one of said first and second branch tracks, said shiftable track means comprising first and second separate switch track sections fixedly intercoupled and movable as a unit, said first switch track section being movable into position to interconnect said first branch track to said common track when said actuating means is actuated in a first way, and said second switch track section being movable into position to interconnect said second branch track to said common track when said actuating means is actuated in a second way, (b) actuating means for selectively shifting said shiftable track means to connect said common track as desired to either of said first or second branch tracks, and (c) a hollow switch body having a closed top, a closed bottom having a central aperture, a pair of closed opposite side walls and a pair of opposite end walls intersecuring said top and bottom, one of said pair of end walls having a separate track-end receiving opening for each of said first and second branch tracks and the other of said pair of end walls having a track-end receiving opening for said common track, said shiftable track means comprising a slider unit held captive within said hollow switch body and closing the central aperture in said switch body bottom irrespective of the position of said shiftable track means.
Claim 3
Dependent Claim
52 words
A track switch as described in claim 1 wherein said hollow switch body further includes a flange extending peripherally thereabout and outward from the lower edge of the switch body, said flange being adapted to closely underlie the lower surface of a ceiling into which the switch body may be upwardly recessed.
Claim 4
Dependent Claim
51 words
A track switch as described in claim 1 wherein said hollow switch body further includes interior fixed track sections positioned to function as continuations of the external branch and common tracks and provide a smooth track continuation between said external tracks and said shiftable track means first and second track sections.
Claim 5
Dependent Claim
41 words
A track switch as described in claim 1 wherein said actuating means for selectively shifting said shiftable track means comprises a resilient toggle coupled at one point to said hollow switch body and coupled at another point to said slider unit.
Claim 6
Dependent Claim
106 words
A track switch as described in claim 3 wherein each said switch body track-end receiving opening has received therein a track section comprising in combination (a) a pair of horizontal longitudinally extending parallel spaced apart tracks, and (b) a pair of upstanding sidewalls interconnected with each other at an elevation above the level of said pair of tracks, said switch body track-end receiving opening being formed in cross-section with lands and openings to interfit with and close fittingly receive thereinto at least portions of the ends of said track section tracks and sidewalls, with said tracks aligned with the said switch body interior fixed track sections.
Claim 7
Dependent Claim
41 words
A track switch as described in claim 3 wherein said actuating means for selectively shifting said shiftable track means comprises a resilient toggle coupled at one point to said hollow switch body and coupled at another point to said slider unit.
Claim 8
Dependent Claim
68 words
A track switch and tracks sections as described in claim 5 wherein each said track section further includes a longitudinally extending horizontal flange extending laterally outward from each of said pair of parallel spaced apart tracks, said flanges extending laterally in opposite directions outward away from one another and also engagingly interfitting with lands and recesses formed in said switch body at said switch body track-end receiving openings.
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |