Walkable secure patio door threshold

• US 5,469,666 A
• Filed: 09/13/1994
• Issued: 11/28/1995
• Est. Priority Date: 09/13/1994
• Status: Expired due to Fees

• Current Assignee: William P. Lewis Jr
• Original Assignee: William P. Lewis Jr
• Inventors: Lewis, William P. Jr.
• Primary Examiner(s): Mai, Lanna
• Assistant Examiner(s): CANFIELD, ROBERT
• Application Number:
  US08/304,926
• Time in Patent Office: 441 Days
• Field of Search: 49/471, 49/467, 49/505, 52/177, 52/179, 52/730.1, 52/730.3, 52/730.6, 52/98, 52/207, 52/204.51, 52/730.4, 52/730.5, 52/656.4, 52/656.5, 52/656.6, 52/656.2 , 52/656.7
• US Class Current: 49/471
• CPC Class Codes: E06B 1/70 Sills; Thresholds
• CPC Class Codes: E06B 3/4636 for doors E06B3/4609 and E06B3/4654 - E06B3/4681 take precedence; sliding shower doors A47K3/34

Abstract

A new and improved walkable secure patio door threshold with a lower extrusion having a lower surface and a vertical extension. The lower surface has a plurality of apertures vertically therethrough. The vertical extension is integral with the lower surface of the lower extrusion. An upper extrusion has a plurality of guide grooves and a plurality of break grooves. Each of the guide grooves function to receive a sliding door. Each of the break grooves function to allow adjustment to accommodate a various number of sliding doors. A convoluted end portion is formed adjacent the sliding groove. A plurality of countersunk apertures are formed within the plurality of guide grooves. The countersunk apertures are aligned with the plurality of apertures formed in the lower surface of the lower extrusion for securement thereon.

Claims

1. A new and improved walkable secure patio door threshold for providing a patio door sill that is comfortable to the feet, can be walked upon, and is as theft proof as possible comprising, in combination:

a lower extrusion having a lower surface and a vertical extension, the lower surface having a plurality of apertures vertically therethrough, the vertical extension having a lower end and an upper end, the lower end integral with one end of the lower surface of the lower extrusion;

an upper extrusion having a plurality of guide grooves and a plurality of break grooves, the guide grooves having a vertical configuration and having a flat surface positioned between each guide groove, a first flat surface removably positioned upon the upper end of the vertical extension of the lower extrusion, each of the guide grooves functioning to receive a sliding door, each of the flat surfaces functioning to separate each sliding door adapted to be positioned within the guide grooves, a sliding groove positioned adjacent the guide grooves, the sliding groove functioning to accommodate a screen door with rollers, a convoluted end portion formed adjacent the sliding groove, a plurality of countersunk apertures formed within the plurality of guide grooves, the countersunk apertures aligned with the plurality of apertures formed in the lower surface of the lower extrusion for securement thereon by a fastening means;

a plurality of non-skid surfaces secured to the flat surfaces of the upper extrusion;

a plurality of drainage apertures formed in the plurality of guide grooves and the convoluted end of the upper extrusion; and

a plurality of snap-on covers designed for removable positionment within the plurality of guide grooves of the upper extrusion.

2. A door threshold comprising:

a lower extrusion having a lower surface and a vertical extension, the lower surface having a plurality of apertures vertically therethrough, the vertical extension integral with the lower surface of the lower extrusion; and

an upper extrusion having a plurality of guide grooves and a plurality of flat surfaces, each of the guide grooves functioning to receive a sliding door, each of the flat surfaces functioning to separate each sliding door adapted to be positioned within the guide grooves, a convoluted end portion formed adjacent the guide grooves, a plurality of countersunk apertures formed within the plurality of guide grooves, the countersunk apertures aligned with the plurality of apertures formed in the lower surface of the lower extrusion for securement thereon by a fastening means.

3. The apparatus as described in claim 2 and further comprising:

a sliding groove positioned adjacent the guide grooves of the upper extrusion, the sliding groove functioning to accommodate a screen door with rollers.

4. The apparatus as described in claim 3 and further comprising:

a plurality of non-skid surfaces secured to the flat surfaces of the upper extrusion.

5. The apparatus as described in claim 4 and further comprising:

a plurality of drainage apertures formed in the plurality of guide grooves and the convoluted end of the upper extrusion.

6. The apparatus as described in claim 5 and further comprising:

a plurality of snap-on covers designed for removable positionment within the plurality of guide grooves of the upper extrusion.