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US 6,640,869 B2Granted
Storm door with counterbalance
AssigneePella Corporation
InventorsJames L. Ralph, Todd N. Stratmoen, David M. Wamre
Life of this patent
Estimating the term…
Abstract
A storm door (20) ventilation through a screen (50) by either or both of slidable sashes (92, 93). The storm door may also utilize a flexible member (80) to secure a liner (30, 40, 53, 54) to a side, without the use of mechanical fasteners. Sash weight balancing assemblies are utilized in a three track door.
Claims26
A storm door comprising:
- a) a frame having first and second sides, a top extending between and interconnecting the sides at their upper ends and a bottom extending between and interconnecting the sides at their lower ends;
- b) a first jamb liner operatively connected to the first side and forming a vertically extending first hollow chamber between the first side and the first jamb liner;
- c) a second jamb liner operatively connected to the second side and forming a vertically extending second hollow chamber between the second side and the second jamb liner;
- d) the jamb liners forming first, second and third positions;
- e) a screen positioned between the first positions;
- f) a first slidable window sash positioned between the jamb liners at the second positions;
- g) a second slidable window sash positioned between the jamb liners at the third positions;
- h) first and second sash weight balancing assemblies connected to the first and second sides respectively and each connected to the first slidable window sash, said first and second sash weight balancing assemblies located in the first and second hollow chambers respectively, for counterbalancing the first slidable sash;
- i) third and fourth sash weight balancing assemblies connected to the first and second sides respectively and each connected to the second slidable window sash, the third and fourth sash weight balancing assembly located in the first and second hollow chambers for counterbalancing the second slidable sash;
- and
- j) first and second flexible members compressibly retained between the first and second jamb liners and the first and second sides, respectively, so as to secure the first and second flexible members with an interference fit, whereby the first and second jamb liners are firmly held in place by the first and second flexible members, respectively.
8 more elements
A storm door comprising:
- a) a frame having first and second sides, said sides operatively connected at their top ends by a top and at their bottom ends by a bottom;
- b) said sides having first and second side end members operatively connected to a side connecting member, thereby forming sides having openings;
- c) first and second jamb liners having first and second jamb liner end members operatively connected to a jamb liner connecting member;
- d) said first and second jamb liners positioned in the openings of the first and second sides respectively, forming hollow chambers between the sides and jamb liners;
- e) said first jamb liner end members positioned on the side first end members and the second jamb liner end members positioned proximate the side connecting members;
- and
- f) first flexible members compressibly retained between the jamb liners and the sides so as to secure the first flexible members with an interference fit, whereby the jamb liners are firmly held in place by the first flexible members.
4 more elements
A storm door comprising:
- a) a frame having first and second side rails, a top rail extending between and interconnecting the side rails at their upper ends and a bottom rail extending between and interconnecting the side rails at their lower ends;
- b) a first jamb liner operatively connected to the first side rail and forming a vertically extending first hollow chamber between the first side rail and the first jamb liner;
- c) a second jamb liner operatively connected to the second side rail and forming a vertically extending second hollow chamber between the second side rail and the second jamb liner;
- d) the jamb liners forming first, second and third positions;
- e) a screen extending between the first position;
- f) a first slidable window sash positioned between the jamb liners at the second position;
- g) a second slidable window sash positioned between the jamb liners at the third position;
- h) first and second sach weight balancing assemblies connected to the first and second side rails respectively and each connected to the first slidable window sash, said first and second sash weight balancing assemblies located in the first and second hollow chambers respectively, for counterbalancing the first slidable sash;
- i) third and fourth sash weight balancing assemblies connected to the first and second side rails respectively and each connected to the second slidable window sash, the third and fourth sash weight balancing assemblies located in the first and second hollow chambers for counterbalancing the second slidable sash;
- and
- j) first and second flexible members compressibly retained between the first and second jamb liners and the first and second sides, respectively, so as to secure the first and second flexible members with an interference fit, whereby the first and second jamb liners are firmly held in place by the first and second flexible members, respectively.
8 more elements
A storm door comprising:
- a) a frame having first and second sides, said sides operatively connected at their top ends by a top and at their bottom ends by a bottom;
- b) said sides each having a wall to form an opening;
- c) first and second jamb liners positioned in the openings of the first and second sides respectively to form hollow chambers between the sides and liners;
- d) said jamb liners having at least two points of contact with the sides to limit movement of the liners;
- and
- e) first and second flexible members positioned between the first and second sides and the first and second jamb liners, respectively, the first and second flexible members configured as compressible members retained between the liners and the sides and secured with an interference fit, whereby the jamb liners are firmly held in place by the flexible members.
3 more elements
Dependencies are inferred from the claim text.