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US 6,681,523 B1Granted
Security gate
AssigneeNorth States Industries, Inc.
InventorLes Stener
Life of this patent
Estimating the term…
Abstract
A security gate having an adjustable width that is suitable for use as a barrier to restrict the movement of children or animals. The gate includes a stationary panel and an overlapping moveable panel which are slidably extendable with respect to each other and lockable in a variety of extended positions. The gate can be pressure mounted to an opening, such as a hallway or doorway.
Claims18
An extendable and retractable gate comprising:
- a. a stationary panel;
- b. a movable panel slidably engaged to the stationary panel;
- c. a handle operably connected to either the stationary panel or moveable panel;
- and
- d. a drive train operably connected to the handle, said drive train comprising a helical gear operably connected to at least one rotating element that engages at least one surface of the stationary or moveable panel.
2 more elements
An extendable and retractable gate comprising:
- a. a stationary panel;
- b. a movable panel slidably engaged to the stationary panel, wherein at least one of the movable panel or the stationary panel comprise at least one gear rack;
- c. a handle operably connected to either the stationary panel or moveable panel wherein the handle comprises a knob and a splined surface;
- d. a drive train operably connected to the handle, said drive train comprising:
- i. a helical gear comprising:
- a. a cylindrical upper half having a top surface and a bottom surface, wherein the top surface comprises splines, and the bottom surface defines an opening and an interior surface wherein said interior surface defines a circumference and comprises ridges;
- b. a cylindrical lower half comprising an outer surface and a bottom surface comprising a contoured inlet, wherein the outer surface of said lower half is threaded and circumferentially smaller than the circumference of the interior surface of the upper half;
- and
- c. a biasing member;
- wherein the lower half is biased from and fits into the upper half in a rotatably telescoping manner, and wherein the splined top surface of the upper half of the helical gear mates with the splined surface in the handle;
- and
- ii. at least one rotating element that engages at least one surface of the stationary or moveable panel, wherein at least one of said rotating element is operably connected to the helical gear.
9 more elements
Dependencies are inferred from the claim text.