Abstract: An interchangeable finger insert system for a bowling ball is provided. An inner sleeve has a cylindrical opening defined at a top end. A base encloses a bottom end of the inner sleeve. A fastener-head feature is defined in the base and accessible through the cylindrical opening. An engagement feature is formed along an exterior surface and configured to allow the inner sleeve to be rotationally inserted into an internal bore. A fastening tool with an elongated shaft and a locking feature defined at a distal end of the shaft is provided. The locking feature shaped to engage the fastener-head feature defined on the inner sleeve. The locking feature of the fastening tool engages the fastener-head feature on the inner sleeve, and rotation of the fastening tool is configured to rotate the inner sleeve into the internal bore thereby locking the inner sleeve in the bowling ball.

Abstract: An interchangeable finger insert system for a bowling ball is provided. An inner sleeve has a cylindrical opening defined at a top end. A base encloses a bottom end of the inner sleeve. A fastener-head feature is defined in the base and accessible through the cylindrical opening. An engagement feature is formed along an exterior surface and configured to allow the inner sleeve to be rotationally inserted into an internal bore. A fastening tool with an elongated shaft and a locking feature defined at a distal end of the shaft is provided. The locking feature shaped to engage the fastener-head feature defined on the inner sleeve. The locking feature of the fastening tool engages the fastener-head feature on the inner sleeve, and rotation of the fastening tool is configured to rotate the inner sleeve into the internal bore thereby locking the inner sleeve in the bowling ball.

Abstract: An interchangeable finger insert system for a bowling ball is provided. An inner sleeve has a cylindrical opening defined at a top end. A base encloses a bottom end of the inner sleeve. A fastener-head feature is defined in the base and accessible through the cylindrical opening. An engagement feature is formed along an exterior surface and configured to allow the inner sleeve to be rotationally inserted into an internal bore. A fastening tool with an elongated shaft and a locking feature defined at a distal end of the shaft is provided. The locking feature shaped to engage the fastener-head feature defined on the inner sleeve. The locking feature of the fastening tool engages the fastener-head feature on the inner sleeve, and rotation of the fastening tool is configured to rotate the inner sleeve into the internal bore thereby locking the inner sleeve in the bowling ball.

Abstract: An interchangeable finger insert apparatus for a bowling ball includes a cylindrical outer body configured to be disposed in a bowling ball hole. The outer body defines an internal bore open to a first end of the outer body and a number of protrusions extending from an inner surface of the bore. The finger insert apparatus also includes a cylindrical inner slug sized to be inserted into the bore of the outer body. The inner slug defines a plurality of helical grooves corresponding to the protrusions of the outer body. At least one of the protrusions is uniquely sized relative to other protrusions and corresponds to only one of the helical grooves such that the slug may be rotatably inserted to a single set position.

Abstract: An interchangeable finger insert apparatus for a bowling ball includes a cylindrical outer body configured to be disposed in a bowling ball hole. The outer body defines an internal bore open to a first end of the outer body and a number of protrusions extending from an inner surface of the bore. The finger insert apparatus also includes a cylindrical inner slug sized to be inserted into the bore of the outer body. The inner slug defines a plurality of helical grooves corresponding to the protrusions of the outer body. At least one of the protrusions is uniquely sized relative to other protrusions and corresponds to only one of the helical grooves such that the slug may be rotatably inserted to a single set position.

Abstract: A method of monitoring verticality of a sinking caisson having a tip. A pole is inserted into the earth to a pole depth substantially corresponding to a desired final depth of the caisson tip, one or more levels are coupled to the pole, and an elevation of the levels(s) is established. Scales are carried on an interior surface of the caisson in spaced circumferential locations and in reference to the caisson tip, and the level(s) is applied to the scales to indicate heights from the caisson tip corresponding to the circumferential locations of the scales. Tip elevations corresponding to the circumferential locations of the scales are determined by subtracting the indicated heights from the established elevation of the level(s). Any tilt of the caisson is calculated from any differences among the determined tip elevations.

Abstract: A compact beverage cooling apparatus having a plurality of tubular members coupled to one another thereby forming an elongated tubular member. These tubular members surround a plurality of beverage containers placed therein and cool the beverages since at least a portion of the members contain a of cooling material. In addition, a receiving member can be utilized to insert the beverage containers into, and withdraw the beverage containers from, the tubular members. When the beverage containers are inserted into the tubular members, they are placed in close proximity to the cooling material such that the beverage containers may be kept cool for long periods of time.