Patent US4241541A successfully refreshed from Google Patents.
US4241541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual arm operator for a casement-type window
Assignee: SPX CORPORATION A CORPORATION OF DE
•
Filing: 1979-06-08
•
Granted: 1980-12-30
•
Expires: 1999-06-08
Abstract
Abstract An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame. The operator includes a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge of the sash to impart a rotational force to the sash, a second operator arm and a connecting link pivotally connected between said second operator arm and the sash adjacent said edge, and said second operator arm being pivotally mounted on the first operator arm, with there being intermeshing drive gears fixed one to each of said arms, with one gear being a drive gear and the other gear being a driven gear. Rotation imparted to the drive gear causes rotation of the first operator arm and bodily movement and rotation of the second operator arm with the latter arm exerting a force on the connecting link acting in a direction generally parallel to the path of linear movement of the sash edge.
Inventors
- 👤 Marlo G. Van Klompenburg
- 👤 Jeffery A. Peterson
- 👤 Eric W. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:22
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/02; E05F11/08; E05F11/12; E05F11/16; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
132 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge to impart a rotational force to said sash, a second operator arm, a connecting link pivotally connected to said second operator arm and pivotally connectable to said sash adjacent said edge, and means responsive to rotation of the first operator arm for rotating and bodily moving said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge.
Claim 2
Dependent Claim
132 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge to impart a rotational force to said sash, a second operator arm, a connecting link pivotally connected to said second operator arm and pivotally connectable to said sash adjacent said edge, and means responsive to rotation of the first operator arm for rotating and bodily moving said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge.
Claim 3
Dependent Claim
70 words
An operator as defined in claim 1 wherein said means for rotating and bodily moving said second operator arm comprises, rotatably mounting the second operator arm on said first operator arm, and a pair of meshing gears including a drive gear rotatable about said fixed axis and fixed to said first operator arm for rotation therewith and a driven gear fixed to said second operator arm and rotatable coaxially therewith.
Claim 4
Dependent Claim
94 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a first rotatable operator arm having an end for engagement with the sash, a second rotatable operator arm, a connecting link pivotally connected to said second operator arm and pivotally connectable to said sash, means responsive to rotation of one of the operator arms for rotating and bodily moving the other operator arm and means for causing rotation of said one operator arm.
Claim 5
Dependent Claim
94 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a first rotatable operator arm having an end for engagement with the sash, a second rotatable operator arm, a connecting link pivotally connected to said second operator arm and pivotally connectable to said sash, means responsive to rotation of one of the operator arms for rotating and bodily moving the other operator arm and means for causing rotation of said one operator arm.
Claim 6
Dependent Claim
155 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof a slider structure for combined pivoting and linear movement of said sash edge relative to a window frame and with the movement controlled by a constraining link pivotally connected between the sash and frame comprising, a first operator arm rotatable about a fixed axis and having an end movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second operator arm, a connecting link pivotally connected to said second operator arm and connectable to said sash adjacent said edge, means responsive to rotation of the first operator arm for rotating and bodily moving said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge, and means for rotating said first operator arm.
Claim 7
Dependent Claim
155 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof a slider structure for combined pivoting and linear movement of said sash edge relative to a window frame and with the movement controlled by a constraining link pivotally connected between the sash and frame comprising, a first operator arm rotatable about a fixed axis and having an end movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second operator arm, a connecting link pivotally connected to said second operator arm and connectable to said sash adjacent said edge, means responsive to rotation of the first operator arm for rotating and bodily moving said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge, and means for rotating said first operator arm.
Claim 8
Dependent Claim
42 words
An operator as defined in claim 4 wherein said means for rotating and bodily moving said second operator arm comprises, rotatably mounting the second operator arm on said first operator arm, and meshing gears fixed one to each of said operating arms.
Claim 9
Dependent Claim
173 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a casing mountable on said frame, a first relatively long operator arm extending from said casing and rotatable about a fixed axis in said casing and having an end remote from said casing movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second relatively short operator arm rotatably mounted on said first operator arm and extending from said casing, a connecting link pivotally connected between an end of said second operator arm and a bracket mountable to said sash adjacent said edge, means for rotating said first operator arm, and means for rotating said second operator arm as it moves bodily with the first operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge.
Claim 10
Dependent Claim
173 words
An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame comprising, a casing mountable on said frame, a first relatively long operator arm extending from said casing and rotatable about a fixed axis in said casing and having an end remote from said casing movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second relatively short operator arm rotatably mounted on said first operator arm and extending from said casing, a connecting link pivotally connected between an end of said second operator arm and a bracket mountable to said sash adjacent said edge, means for rotating said first operator arm, and means for rotating said second operator arm as it moves bodily with the first operator arm to exert a force on the connecting link acting in a direction generally parallel to the path of linear movement of said sash edge.
Claim 11
Dependent Claim
52 words
An operator as defined in claim 6 wherein said means for rotating the second operator arm comprises, a drive gear rotatable about said fixed axis and fixed to said first operator arm and a driven gear fixed to said second operator arm and rotatable coaxially therewith and meshing with said drive gear.
Claim 12
Dependent Claim
81 words
An operator as defined in claim 7 wherein the sash edge is mounted by a linearly movable slider and sash movement is controlled by a constraining link pivotally connected between the sash and frame, and the length of said operator arms and the location of their pivots are selected whereby gear loading of said gears is minimized and the operator arms apply forces in a direction consistent with the path of sash movement as determined by said constraining link and slider.
Claim 13
Dependent Claim
141 words
For a casement-type window having an openable sash mounted adjacent one edge by a linearly movable slider for combined pivoting and straight-line linear movement of said sash edge relative to a window frame, an operator comprising, a casing, a first relatively long operator arm rotatable about a fixed axis in said casing and having an end movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second relatively short operator arm, a connecting link pivotally connected between said second operator arm and a bracket connectable to said sash adjacent said edge, and means responsive to rotation of the first operator arm for rotating said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the straight-line linear movement of said sash edge.
Claim 14
Dependent Claim
141 words
For a casement-type window having an openable sash mounted adjacent one edge by a linearly movable slider for combined pivoting and straight-line linear movement of said sash edge relative to a window frame, an operator comprising, a casing, a first relatively long operator arm rotatable about a fixed axis in said casing and having an end movably engageable with the sash at a distance from said one edge to impart a rotational force to said sash, a second relatively short operator arm, a connecting link pivotally connected between said second operator arm and a bracket connectable to said sash adjacent said edge, and means responsive to rotation of the first operator arm for rotating said second operator arm to exert a force on the connecting link acting in a direction generally parallel to the straight-line linear movement of said sash edge.
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) | 1983-12-30 | 1984-06-30 | 1984-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-30 | 1988-06-30 | 1988-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-30 | 1992-06-30 | 1992-12-30 | $7700.00 | Window Closed / Lapsed |