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US4020889A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for manipulating a multiple panel screen

Assignee: Individual
•
Filing: 1976-08-02
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Granted: 1977-05-03
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Expires: 1996-08-02
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Abstract

Abstract An apparatus for manipulating a multiple panel screen is disclosed in my U.S. Pat. No. 3,444,919, issued May 20, 1969. The patent shows a plurality of identical panels for regulating the visibility and the amount of light and air to be admitted. Each panel has a plurality of vertical columns of apertures separated by spaced apart horizontal strips. The panels are hung from a roller-shaped head piece and they are spaced apart from each other. When the screen is in normal position the apertures in successive panels are in alignment to permit the greatest amount of visibility and light. Novel means is used for rocking the head piece about its axis for vertically shifting the panels and their apertures with respect to each other for altering the visibility and light controlled by the screen. Additional novel means is used for rotating the head piece for rolling up the panels thereon for raising the screen or for unrolling the panels when lowering the screen.

Inventors

  • 👤 Paul Karoll

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 21:41
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/56; E06B9/68; E06B9/24; E06B9/78; E06B2009/2405

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 156 words
An apparatus for manipulating a multiple panel screen and comprising: a. an elongated head piece for supporting a plurality of flexible panels forming the screen; b. a first means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; c. a rotatable member operatively connected to said head piece for rotating the head piece on its longitudinal axis for initially shifting said panels vertically with respect to each other and then for rolling the panels onto said head piece for rolling up the screen; d. a second means for initially rocking said member for rocking said head piece for altering the vertical positions of said panels with respect to each other; and e. a third means for first disconnecting said member rocking means from said rotatable member and then for rotating said member for winding up said panels on said head piece for rolling up the screen.
Claim 2
Independent Claim 156 words
An apparatus for manipulating a multiple panel screen and comprising: a. an elongated head piece for supporting a plurality of flexible panels forming the screen; b. a first means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; c. a rotatable member operatively connected to said head piece for rotating the head piece on its longitudinal axis for initially shifting said panels vertically with respect to each other and then for rolling the panels onto said head piece for rolling up the screen; d. a second means for initially rocking said member for rocking said head piece for altering the vertical positions of said panels with respect to each other; and e. a third means for first disconnecting said member rocking means from said rotatable member and then for rotating said member for winding up said panels on said head piece for rolling up the screen.
Claim 3
Dependent Claim 81 words
The combination as set forth in claim 1: and in which a. said rotatable member has worm gear teeth concentric with its axis of rotation; b. said second means for initially rocking said rotatable member includes a spring biased swingable carriage with a worm normally meshing with said worm gear teeth; and c. means for rotating said worm for rotating said member for rocking said head piece through a desired angle for shifting said panels vertically with respect to each other.
Claim 4
Dependent Claim 187 words
The combination as set forth in claim 2: and in which a. said carriage has a pivot disposed on one side of said worm and has a pair of pulleys rotatable about a common shaft that is disposed on the opposite side of said worm; b. said third means that first disconnects said first means from said rotatable member includes a chain having a portion extending around and operatively engaging with said rotatable member and having first and second chain portions passing around said pair of pulleys, the remaining first and second portions of said chain depending from said pulleys; c. whereby a pull on the first chain portion, which will rotate said rotatable member in a direction to wind up said panels on said head piece, will first exert a downward pull on its associate pulley for swinging said carriage about its pivot for freeing said worm from said worm teeth and thus disengage said rotatable member from said worm, and a further pull on said first chain portion will rotate said member and said head piece for rolling up said panels on said head piece.
Claim 5
Dependent Claim 100 words
The combination as set forth in claim 3: and in which a. a stop member on said second chain portion and coming into contact with its associate pulley and said carriage for preventing any further movement of the first chain portion in the same direction, the stop member on said second chain portion thus engaging with the pulley and said carriage when said head piece has rotated sufficiently to entirely wind up said panels thereon, the spring biased carriage swinging said worm into mesh with the worm teeth for locking said rotatable member and said head piece from accidental rotation.
Claim 6
Dependent Claim 72 words
The combination as set forth in claim 4: and in which a. a downward pull on said second chain portion will initially pull on its associate pulley to swing said carriage and free said worm from said worm teeth and a further pull on said second chain portion will rotate said rotatable member and said head piece in a direction to unwind said panels from said head piece to the desired extent.
Claim 7
Independent Claim 389 words
An apparatus for manipulating a multiple panel screen and comprising: a. a first and a second bracket spaced apart and a stud carried by said second bracket; b. a worm gear rotatably mounted on said stud and having an integral hub; c. a roller-shaped elongated head piece having one end rotatably mounted on said hub and having a pin extending into an opening in said worm gear for connecting the two together so that said head piece and worm gear will rotate as a unit, the other end of said head piece being rotatably supported by said first bracket; d. a plurality of flexible panels having apertures therein and means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; e. a spring biased elongated carriage having one end pivotally connected to said second bracket and rotatably supporting a shaft which carries a worm that is yieldingly held in mesh with said worm gear, said carriage rotatably supporting a pair of pulleys positioned at the opposite end of the carriage from its pivotal connection with said second bracket; f. means for rotating said worm for rotating said worm gear and rocking said head piece for shifting said panels vertically with respect to each other for controlling the light and visibility through the apertures in said panels; g. said worm gear having an integral chain-receiving gear whose center is concentric with the center of said worm gear; h. a chain having a portion passed over said chain-receiving gear so that a movement of the chain portion contacting with said chain gear will rotate said chain gear, worm gear and head piece about their common axis, said chain having first and second chain portions passed around said pulleys and depending therefrom; i. whereby a pull on the first chain portion designed to rotate said chain gear, worm gear and head piece in a direction for winding up said panels on said head piece, will first exert a downward pull on its associate pulley and carriage for swinging said carriage about its pivot for freeing said worm from said worm gear, and a further pull on said first chain portion will rotate said chain gear, worm gear and head piece for rolling up said panels on said head piece to the desired extent.
Claim 8
Independent Claim 389 words
An apparatus for manipulating a multiple panel screen and comprising: a. a first and a second bracket spaced apart and a stud carried by said second bracket; b. a worm gear rotatably mounted on said stud and having an integral hub; c. a roller-shaped elongated head piece having one end rotatably mounted on said hub and having a pin extending into an opening in said worm gear for connecting the two together so that said head piece and worm gear will rotate as a unit, the other end of said head piece being rotatably supported by said first bracket; d. a plurality of flexible panels having apertures therein and means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; e. a spring biased elongated carriage having one end pivotally connected to said second bracket and rotatably supporting a shaft which carries a worm that is yieldingly held in mesh with said worm gear, said carriage rotatably supporting a pair of pulleys positioned at the opposite end of the carriage from its pivotal connection with said second bracket; f. means for rotating said worm for rotating said worm gear and rocking said head piece for shifting said panels vertically with respect to each other for controlling the light and visibility through the apertures in said panels; g. said worm gear having an integral chain-receiving gear whose center is concentric with the center of said worm gear; h. a chain having a portion passed over said chain-receiving gear so that a movement of the chain portion contacting with said chain gear will rotate said chain gear, worm gear and head piece about their common axis, said chain having first and second chain portions passed around said pulleys and depending therefrom; i. whereby a pull on the first chain portion designed to rotate said chain gear, worm gear and head piece in a direction for winding up said panels on said head piece, will first exert a downward pull on its associate pulley and carriage for swinging said carriage about its pivot for freeing said worm from said worm gear, and a further pull on said first chain portion will rotate said chain gear, worm gear and head piece for rolling up said panels on said head piece to the desired extent.
Claim 9
Dependent Claim 90 words
The combination as set forth in claim 6: and in which a. a stop member positioned on said second chain portion for coming into contact with its associate pulley and said carriage for preventing any further movement of said first and second chain portions in the same directions when said head piece has entirely wound said panels thereon, the spring biased carriage swinging back into normal position and causing said worm to mesh with said worm gear for preventing any rotation of said chain gear, worm gear and head piece.
Claim 10
Dependent Claim 104 words
The combination as set forth in claim 7: and in which a. a downward pull on said second chain portion will initially pull on its associate pulley to swing said carriage and free said worm from said worm gear and a further pull on said second chain portion will rotate said chain gear, worm gear and head piece in a direction to unwind said panels from said head piece to the desired extent after which said spring biased carriage will return to normal position and cause said worm to mesh with said worm gear for preventing said worm gear and head piece to rotate.
Claim 11
Dependent Claim 66 words
The combination as set forth in claim 6: and in which a. a yielding shock absorbing spring means interconnects said pin on said head piece with said worm gear so that there will be a partial lost rotating motion between said worm gear and said head piece before the two will rotate as a unit whether the rotation of said worm gear is clockwise or counterclockwise.
Claim 12
Independent Claim 464 words
An apparatus for manipulating a multiple panel screen and comprising: a. a first and a second bracket spaced apart and a stud carried by said second bracket; b. a worm gear rotatably mounted on said stud and having an integral hub; c. a roller-shaped elongated head piece having one end rotatably mounted on said hub and having a pin extending into an opening in said worm gear for connecting the two together so that said head piece and worm gear will rotate as a unit, the other end of said head piece being rotatably supported by said first bracket; d. a plurality of flexible panels having apertures therein and means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; e. a spring biased elongated carriage having one end pivotally connected to said second bracket and rotatably supporting a shaft which carries a worm that is yieldingly held in mesh with said worm gear, said carriage rotatably supporting a pair of pulleys positioned at the opposite end of the carriage from its pivotal connection with said second bracket; f. means for rotating said worm for rotating said worm gear and rocking said head piece for shifting said panels vertically with respect to each other for controlling the light and visibility through the apertures in said panels; g. said worm gear having an integral gear whose center coincides with the center of said worm gear; h. a spur gear rotatably carried by said second bracket and meshing with said integral gear on said worm gear and being much smaller in diameter than said worm gear; i. said spur gear having an integral chain-receiving gear whose center is concentric with the center of said gear; j. a chain having a portion passed over said chain-receiving gear so that a movement of the chain portion contacting with said chain gear will rotate said chain gear, spur gear, worm gear and head piece, said chain having first and second chain portions passed around said pulleys and depending therefrom; k. whereby a pull on the first chain portion designed to rotate said chain gear, spur gear, worm gear and head piece in a direction for winding up said panels on said head piece, will first exert a downward pull on its associate pulley and carriage for swinging said carriage about its pivot for freeing said worm from said worm gear, and a further pull on said first chain portion will rotate said chain gear and spur gear for causing the larger diameter integral gear with the worm gear to rotate at a much slower speed and thereby causing the head piece to revolve at a slower speed for rolling up said panels on said head piece to the desired extent.
Claim 13
Independent Claim 464 words
An apparatus for manipulating a multiple panel screen and comprising: a. a first and a second bracket spaced apart and a stud carried by said second bracket; b. a worm gear rotatably mounted on said stud and having an integral hub; c. a roller-shaped elongated head piece having one end rotatably mounted on said hub and having a pin extending into an opening in said worm gear for connecting the two together so that said head piece and worm gear will rotate as a unit, the other end of said head piece being rotatably supported by said first bracket; d. a plurality of flexible panels having apertures therein and means for connecting the top ends of said panels to said head piece in spaced parallel relation to one another; e. a spring biased elongated carriage having one end pivotally connected to said second bracket and rotatably supporting a shaft which carries a worm that is yieldingly held in mesh with said worm gear, said carriage rotatably supporting a pair of pulleys positioned at the opposite end of the carriage from its pivotal connection with said second bracket; f. means for rotating said worm for rotating said worm gear and rocking said head piece for shifting said panels vertically with respect to each other for controlling the light and visibility through the apertures in said panels; g. said worm gear having an integral gear whose center coincides with the center of said worm gear; h. a spur gear rotatably carried by said second bracket and meshing with said integral gear on said worm gear and being much smaller in diameter than said worm gear; i. said spur gear having an integral chain-receiving gear whose center is concentric with the center of said gear; j. a chain having a portion passed over said chain-receiving gear so that a movement of the chain portion contacting with said chain gear will rotate said chain gear, spur gear, worm gear and head piece, said chain having first and second chain portions passed around said pulleys and depending therefrom; k. whereby a pull on the first chain portion designed to rotate said chain gear, spur gear, worm gear and head piece in a direction for winding up said panels on said head piece, will first exert a downward pull on its associate pulley and carriage for swinging said carriage about its pivot for freeing said worm from said worm gear, and a further pull on said first chain portion will rotate said chain gear and spur gear for causing the larger diameter integral gear with the worm gear to rotate at a much slower speed and thereby causing the head piece to revolve at a slower speed for rolling up said panels on said head piece to the desired extent.

References Cited (Backward Citations)

US1713452A Cited
US2029675A Cited
US2140049A Cited
US2581433A Cited
US3444919A Cited
US3701376A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-05-02 1980-11-01 1981-05-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-05-02 1984-11-01 1985-05-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-05-02 1988-11-01 1989-05-03 $7700.00 Window Closed / Lapsed

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