Swing spring
AssigneeM&M Sales Enterprises Inc.
InventorJohn Brian Priest
Life of this patent
Estimating the term…
Abstract
A swing spring comprises a first plate or top, a second plate or bottom, guide rods extending between and connected to the first plate and the second plate, a third slider or slider plate slidable along an axis along the guide rods between the first plate and the second plate, a compression spring captured between the third plate and the second plate, a first hook rotatably coupled to the first plate by a thrust bearing and extending in a first direction along the axis, and a second hook coupled to the third plate and extending in a second direction opposite the first direction through the second plate.
Claims20
An apparatus comprising:
- a first plate;
- a second plate;
- guide rods extending between and connected to the first plate and the second plate;
- a third plate slidable along an axis along the guide rods between the first plate and the second plate;
- a compression spring captured between the third plate and the second plate;
- a first hook rotatably coupled to the first plate by a thrust bearing and extending in a first direction along the axis;
- and
- a second hook coupled to the third plate and extending in a second direction opposite the first direction through the second plate.
An apparatus comprising:
- an elongate housing having a top and a bottom;
- guide rods extending between the top and the bottom;
- a slider slidable along the guide rods;
- a compression spring captured between the slider and the bottom;
- a first hook rotatably coupled to the top by thrust bearing and extending upwardly from the top;
- a second hook coupled to the slider and slidably extending through the bottom.
An apparatus comprising:
- a swing having a seating surface;
- and
- a spring suspending the swing, the spring comprising:
- an elongate housing having a top and a bottom;
- guide rods extending between the top and the bottom;
- a slider slidable along the guide rods;
- a compression spring captured between the slider and the bottom;
- a first hook rotatably coupled to the top by thrust bearing and extending upwardly from the top;
- a second hook coupled to the slider and slidably extending through the bottom.
Dependencies are inferred from the claim text.