David A Winslow

US Patent:

7165649, Jan 23, 2007

Filed:

Aug 7, 2003

Appl. No.:

10/635900

Inventors:

Brett A. Latimer - New Castle PA, US
Ronald K. Burig - New Castle PA, US
Christine A. Brown - Jamestown PA, US
David E. Plotner - Sharpsville PA, US
John J. Fiumefreddo - New Wilmington PA, US
Roy B. Bendickson - Sharpsville PA, US
David A. Winslow - Hermitage PA, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 9/00

US Classification:

182 77

Abstract:

A support frame for a folding ladder, a folding ladder positioning system, and a method for installing a folding ladder, are disclosed and pertain to folding ladders disposable within an opening, such as openings in a ceiling of a house, to provide temporary access between one floor or space and another floor or space. In one aspect, a support frame includes a plurality of separable support frame plates collectively configured to circumscribe the opening and a plurality of connection sites are disposed at opposing ends of each of the plurality of separable support frame plates to facilitate connection of each support frame plate to adjacent support frame plates. The connection sites include, for example, mating locking connectors or a plurality of matching through-holes, which permit insertion of a fastening means therethrough.

US Patent:

7306075, Dec 11, 2007

Filed:

Apr 13, 2005

Appl. No.:

11/104584

Inventors:

David A. Winslow - Hermitage PA, US
Joseph C. Dangrow - Fredonia PA, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 1/00

US Classification:

182163, 16357

Abstract:

A dynamic hinge includes a first member connected to a first ladder portion of a ladder, and a second member connected to a second ladder portion. The first member pivots relative to the second member about a pivot axis that does not intersect both the first and second members. The first member includes first and second parallel segments, and the second member includes a third and fourth parallel segments. A guide plate is attached to either the first or second member, and the guide plate is positioned between the first and second segments and between the third and fourth segments. The guide plate includes two non-linear slots, and an other of the first and second members includes two pins, respectively adapted to slide within the two non-linear slots. The pins extend between either the first and second segments or the third and fourth segments.

US Patent:

7931123, Apr 26, 2011

Filed:

Nov 17, 2004

Appl. No.:

10/990611

Inventors:

Jason R. Moldthan - Hadley PA, US
Thomas W. Parker - Jamestown PA, US
David Andrew Winslow - Hermitage PA, US
Kyle G. Astor - Conneaut Lake PA, US
Timothy James Brookbank - Girard OH, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 5/32

US Classification:

182129, 182161, 182165

Abstract:

A ladder includes a first section having at least one step. The ladder includes a second section having a least one step. The ladder includes a platform attached to the first and second sections. The ladder includes a hinge mechanism connected to the first section and second section, about which the first section and second section move between an open state, where the first and second sections are in an angular relationship for use, and a folded state where the first and second sections and the platform are essentially in parallel, as shown in FIGS. and The ladder includes a foldable tray mechanism attached to the hinge mechanism about which the foldable tray mechanism moves between the open state independently of the first and second sections, where the foldable tray is in an angular relationship with the first and second sections for use, and a folded state where the foldable tray essentially forms a plane with the first section. A hinge for a stepladder. A step to a ladder.

US Patent:

8104578, Jan 31, 2012

Filed:

Sep 4, 2008

Appl. No.:

12/231565

Inventors:

Jason R. Moldthan - Hadley PA, US
Thomas W. Parker - Jamestown PA, US
David Andrew Winslow - Hermitage PA, US
Kyle G. Astor - Conneaut Lake PA, US
Timothy James Brookbank - Girard OH, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 5/32

US Classification:

182129, 16365, 403 84, 403 93

Abstract:

A ladder includes a first section having at least one step. The ladder includes a second section having a least one step. The ladder includes a platform attached to the first and second sections. The ladder includes a hinge mechanism connected to the first section and second section, about which the first section and second section move between an open state, where the first and second sections are in an angular relationship for use, and a folded state where the first and second sections and the platform are essentially in parallel, as shown in FIGS. and. The ladder includes a foldable tray mechanism attached to the hinge mechanism about which the foldable tray mechanism moves between the open state independently of the first and second sections, where the foldable tray is in an angular relationship with the first and second sections for use, and a folded state where the foldable tray essentially forms a plane with the first section. A hinge for a stepladder. A step to a ladder.

US Patent:

8256573, Sep 4, 2012

Filed:

Aug 21, 2006

Appl. No.:

11/508041

Inventors:

Joseph C. Dangrow - Fredonia PA, US
James J. Grebinoski - Mercer PA, US
David A. Winslow - Hermitage PA, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 7/00

US Classification:

182204

Abstract:

A leveler for a ladder having side rails and a rung comprises a metal housing fixed to one of the side rails. The housing has an opening. The leveler comprises a metal leg with slides in the housing and is adjustable in the housing. The leg has a top end and a bottom end. The leg has two rows of holes which are set side by side and extend through the leg. The leveler comprises a holder for holding a leg to the housing. The holder extending through the opening and one of the holes to hold a leg in place. The leveler comprises a cap disposed on the top end which acts as a stop for the leg when the cap contacts the housing. A method for setting a ladder in place.

US Patent:

8261882, Sep 11, 2012

Filed:

Jan 14, 2006

Appl. No.:

11/331458

Inventors:

Joseph C. Dangrow - Fredonia PA, US
James J. Grebinoski - Mercer PA, US
David A. Winslow - Hermitage PA, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 7/00

US Classification:

182204

Abstract:

A leveler for a ladder having side rails and a rung comprises a metal housing fixed to one of the side rails. The housing has an opening. The leveler comprises a metal leg with slides in the housing and is adjustable in the housing. The leg has a top end and a bottom end. The leg has two rows of holes which are set side by side and extend through the leg. The leveler comprises a holder for holding a leg to the housing. The holder extending through the opening and one of the holes to hold a leg in place. The leveler comprises a cap disposed on the top end which acts as a stop for the leg when the cap contacts the housing. A method for setting a ladder in place.

US Patent:

8490747, Jul 23, 2013

Filed:

Jun 30, 2006

Appl. No.:

11/480046

Inventors:

David A. Winslow - Hermitage PA, US
Yick B. Shum - Roselle IL, US
John J. Dylik - La Grange IL, US
Marcus Burzynski - Glendale Heights IL, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 1/00

US Classification:

182129, 182118, 182119

Abstract:

A scaffold includes a frame assembly. The scaffold includes planks that are disposed on the frame assembly. The scaffold includes wheels attached to the frame assembly on which the frame assembly rolls. The scaffold includes a project tray which extends from the frame assembly. The scaffold includes a telescoping tube assembly that is mounted to the frame assembly and on which the tray is mounted. A method for using a scaffold. The method includes the steps of placing a telescoping tray assembly at a desired height relative to a frame assembly having planks disposed on it by moving the tray assembly which extends from the frame assembly. There is the step of locking the tray assembly at the desired height to the frame assembly.

US Patent:

8616336, Dec 31, 2013

Filed:

Sep 5, 2012

Appl. No.:

13/604217

Inventors:

Joseph C. Dangrow - Fredonia PA, US
James J. Grebinoski - Mercer PA, US
David A. Winslow - Hermitage PA, US

Assignee:

Werner Co. - Greenville PA

International Classification:

E06C 7/00

US Classification:

182204

Abstract:

A method for setting a ladder in place includes the steps of leaning a top edge of the ladder against a work surface and swivel shoes on the bottom end of each leg of the ladder onto ground, positioning the ladder until a bubble of a rung of the ladder indicates a level reading. The method also includes the steps of sliding a rectangular closed box section metal leg having a cap which acts as a stop in an upper housing portion, the upper housing portion has two holes side by side, and a lower housing portion spaced apart from the upper housing portion of a housing of the leg attached to a rail of the ladder and inserting a holder through a hole of the two holes of the upper housing portion and a hole of two rows of holes which are set side by side but offset vertically from each other and extend through the leg.