IP Library Granted Patent US 12,371,941
Granted Patent B2
US 12,371,941 · App. 18/989,207 · Granted Jul 29, 2025

Self-aligning jamb jack screw with partial sphere

Inventor: Charles James Spofford (Greenfield, MA)
E06B1/6076E04F21/0015
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Quick Facts
Patent No.
US 12,371,941
App. No.
18/989,207
Granted
Jul 29, 2025
Kind
B2
Abstract

A self-aligning jamb jack apparatus with a cylindrical threaded adjustment component that has adjustment component threads on the exterior wall and smooth surface on the interior walls, the cylindrical threaded adjustment component extending through a cylinder with a smooth exterior to a ball (or cut-off sphere), the smooth surface extending through the cylinder and the ball (or cut-off sphere). The jamb jack apparatus also has a platform base with a socket configured to encompass the ball (or cut-off sphere) such that the platform base pivots around the ball (or cut-off sphere). The self-aligning jamb jack apparatus is installed in a door or window jamb (or any other appliance) to connect and regulate the space between the jamb and the rough framing.

Claims (30)

1. An apparatus comprising:

a cylindrical threaded adjustment component with a cylindrical surface on an interior wall and an adjustment component threads on an exterior wall, the cylindrical threaded adjustment component extending through a cylinder with an exterior surface to a cut-off sphere, the cylindrical surface extending through the cylinder and the cut-off sphere;

a platform base with a socket configured to encompass the cut-off sphere such that the platform base pivots around the cut-off sphere; and

a jamb, the cylindrical threaded adjustment component mechanically connected to the jamb.

2. The apparatus of claim 1 further comprising a cylindrical threaded base component with guide threads on base component interior walls, the guide threads aligned to accept the adjustment component threads.

3. The apparatus of claim 2 wherein a flange is mechanically attached to the cylindrical threaded base component at one end of the cylindrical threaded base component, the flange extending outward, the flange including a flat surface perpendicular to the cylindrical threaded base component.

4. The apparatus of claim 3 wherein the flange has a hole in the flat surface of the flange.

5. The apparatus of claim 2 wherein the cylindrical threaded base component has exterior threads.

6. The apparatus of claim 1 wherein the cylindrical threaded adjustment component, the cylinder, and the cut-off sphere are a single piece of steel.

7. The apparatus of claim 1 wherein the platform base, the cylindrical threaded adjustment component, the cylinder, and the cut-off sphere are 3-D printed plastic.

8. The apparatus of claim 1 wherein the platform base is nylon.

9. The apparatus of claim 1 wherein the jamb is a door jamb.

10. The apparatus of claim 1 wherein the jamb is a window jamb.

11. An apparatus comprising:

a cylindrical threaded base component with guide threads on a guide interior wall, the guide threads aligned to accept adjustment component threads;

an adjustment component assembly, the adjustment component assembly comprising:

a cylindrical threaded adjustment component with the adjustment component threads on an adjustment component exterior wall and a cylindrical surface on an adjustment component interior wall,

a cylinder mechanically connected to the cylindrical threaded adjustment component on one end of the cylindrical threaded adjustment component, and

a cut-off sphere, mechanically connected to the cylinder, the cylindrical surface extending through the cut-off sphere; and

a platform base with a socket configured to encompass the cut-off sphere such that the platform base pivots around the cut-off sphere; and

a jamb, the cylindrical threaded adjustment component mechanically connected to the jamb.

12. The apparatus of claim 11 wherein the platform base is a rectangular box shape.

13. The apparatus of claim 11 wherein a flange is mechanically attached to the cylindrical threaded base component at one end of the cylindrical threaded base component, the flange extending outward, the flange including a flat surface perpendicular to the cylindrical threaded base component.

14. The apparatus of claim 11 wherein the cylindrical threaded base component has exterior threads.

15. The apparatus of claim 11 wherein the cylindrical threaded adjustment component, the cylinder, and the cut-off sphere are a single piece of brass.

16. The apparatus of claim 11 wherein the platform base, the cylindrical threaded adjustment component, the cylinder, and the cut-off sphere are 3-D printed steel.

17. The apparatus of claim 11 wherein the platform base is iron.

18. The apparatus of claim 11 wherein the jamb is a door jamb.

19. The apparatus of claim 11 wherein the jamb is a window jamb.

20. The apparatus of claim 11 wherein the jamb is an appliance jamb.

Continuity (3)
Continuation In Part 17994372 · Nov 27, 2022
Provisional Application 63372079 · Mar 11, 2022
Related Publication 20250116152A1 · Apr 10, 2025
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