Patent US4033073A successfully refreshed from Google Patents.
US4033073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutter, grille or the like
Assignee: Individual
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Filing: 1976-01-09
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Granted: 1977-07-05
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Expires: 1996-01-09
Abstract
Abstract A movable member of a grille or shutter is slidable with respect to a stationary member through tongue and groove or other slidable connections, between a fully open and a fully closed position. Both the movable member and the stationary member are provided with corresponding cross bars which are spaced both vertically and equally. Facing upright rails, such as at the center, of the movable member and fixed member are provided with opposed grooves, each for reception of a vertically placed bar magnet. The magnets are placed with their opposite poles facing each other, so that the magnets will attract, rather than repel. Preferably, the closed position of the movable member is the upper position, and the magnets are directly opposite each other in this position.
Inventors
- 👤 Robert T. Bogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:52
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; E06B9/00; E06B9/24; E06B9/26; E06B9/264; E06B2009/2643; E06B2009/2646
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
208 words
A shutter, grille or like, comprising: a stationary member having vertically and equally spaced cross bars connected by upright rail means including an upright center rail; a movable member provided with corresponding vertically and equally spaced cross bars connected by upright rail means including an upright center rail, said cross bars of said movable member being in alignment with said cross bars of said stationary member when said movable member is in an open position and said cross bars of said movable member covering the spaces between said cross bars of said stationary member when said movable member is in a closed position; said rail means of a first of said members being on the side of said cross bars adjacent the second of said members and said rail means of said second member being on the side of said cross bars opposite said first member, said center rail of said first member forming tongue and groove sliding connections with said second member, whereby said cross bars of said first member closely approach said cross bars of said second member; longitudinal slots at opposed positions in said opposed center rails; and a magnet disposed in each of said slots for holding said movable member in an adjusted position.
Claim 2
Dependent Claim
208 words
A shutter, grille or like, comprising: a stationary member having vertically and equally spaced cross bars connected by upright rail means including an upright center rail; a movable member provided with corresponding vertically and equally spaced cross bars connected by upright rail means including an upright center rail, said cross bars of said movable member being in alignment with said cross bars of said stationary member when said movable member is in an open position and said cross bars of said movable member covering the spaces between said cross bars of said stationary member when said movable member is in a closed position; said rail means of a first of said members being on the side of said cross bars adjacent the second of said members and said rail means of said second member being on the side of said cross bars opposite said first member, said center rail of said first member forming tongue and groove sliding connections with said second member, whereby said cross bars of said first member closely approach said cross bars of said second member; longitudinal slots at opposed positions in said opposed center rails; and a magnet disposed in each of said slots for holding said movable member in an adjusted position.
Claim 3
Dependent Claim
37 words
A shutter, grille or the like as set forth in claim 1, wherein: each of said magnets has a length in excess of the distance of movement of said movable member between said open and closed positions.
Claim 4
Dependent Claim
35 words
A shutter, grille or the like as set forth in claim 1, wherein: the length of said magnets exceeds twice the distance of movement of said movable member between said open and said closed positions.
Claim 5
Dependent Claim
59 words
A shutter, grille or the like as defined in claim 1, wherein: said rail means of one of said members includes an up- right rail at each side thereof; and said stationary and movable members are mounted in a frame having an inwardly extending tongue on each side engaging a groove in said side rails of said first member.
Claim 6
Dependent Claim
216 words
A shutter, grille or the like, comprising: a stationary member having vertically and equally spaced cross bars; a movable member provided with corresponding vertically and equally spaced cross bars, said cross bars of said movable member being in alignment with said cross bars of said stationary member when said movable member is in an open position and said cross bars of said movable member covering the spaces between said cross bars of said stationary member when said movable member is in a closed position; a first of said stationary and movable members is provided with an upright center rail and upright side rails on the side of said cross bars adjacent the second of said members; the second of said movable and stationary members is provided with an upright center rail and upright side rails on the side opposite the cross bars of the first said member; said cross bars of said second member are provided with laterally extending tongues engaging grooves in said rails of said first member, whereby said tongue cross bars approach closely the cross bars of the first member and said center rails closely approach each other; and magnets mounted in opposed elongated, upright slots of opposing upright center rails of said members to hold said movable member in an adjusted position.
Claim 7
Dependent Claim
216 words
A shutter, grille or the like, comprising: a stationary member having vertically and equally spaced cross bars; a movable member provided with corresponding vertically and equally spaced cross bars, said cross bars of said movable member being in alignment with said cross bars of said stationary member when said movable member is in an open position and said cross bars of said movable member covering the spaces between said cross bars of said stationary member when said movable member is in a closed position; a first of said stationary and movable members is provided with an upright center rail and upright side rails on the side of said cross bars adjacent the second of said members; the second of said movable and stationary members is provided with an upright center rail and upright side rails on the side opposite the cross bars of the first said member; said cross bars of said second member are provided with laterally extending tongues engaging grooves in said rails of said first member, whereby said tongue cross bars approach closely the cross bars of the first member and said center rails closely approach each other; and magnets mounted in opposed elongated, upright slots of opposing upright center rails of said members to hold said movable member in an adjusted position.
Claim 8
Dependent Claim
29 words
A shutter, grille or the like as set forth in claim 5, wherein: said cross bars of each of said members are integral with the rails of said member.
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) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |