String bowling pin bushing
AssigneeQubicaAMF Worldwide, LLC
InventorsLEROY THOMAS WARREN, JR., ERIC MARK WATTS
Life of this patent
Estimating the term…
Abstract
A string bowling pin as described herein incorporates one or more improvements that extend the time between maintenance and repair events that might otherwise be required at the place where the string leads from the top of the pin. A free-floating bushing improves the longevity of the string and pin connection. In another example, a radiused opening at the top of the pin improves the longevity of the string and pin connection. Also, both the improved bushing and radiused opening at the top of the pin, either alone or together, make the pin less likely to tangle with other strings and pins during use.
Claims17
A string bowling pin and bushing combination comprising:
- a bowling pin comprising a base, a body, a head, and a top of the head;
- wherein the bowling pin has a hole inside the pin that includes an opening at the top of the head of the pin, wherein the opening has a first diameter at the top of the pin;
- a string attached to the bowling pin inside the hole and extending outwardly through the hole and out of the opening from the top of the pin;
- a free-floating bushing comprising a hollow tube having a base portion, wherein the bushing is mounted around the string and is slidable along the length of the string and is freely rotatable around the string;
- and
- the bushing is not fixed to the pin.
A string bowling pin comprising:
- a bowling pin comprising a base, a body, a head, and a top of the head;
- wherein the bowling pin has a hole inside the pin that includes an opening at the top of the pin, wherein the opening has a first diameter at the top of the pin;
- a string attached to the bowling pin in the hole and extending outwardly through the hole and out the opening from the top of the pin;
- wherein the opening defines an edge, and the edge has a vertical cross-section along an axis of the height of the pin, and the edge is radiused in cross-section,
- and the first diameter at the top of the pin is about 10-20 mm.
Dependencies are inferred from the claim text.