Countersink preset measurement device
View Patent ↗An example device includes a housing including a top portion, and a lower portion which connect together to house a spring, and a bushing disposed inside the housing with a backside of a bushing rested against the spring, and the backside of the bushing is in contact with a probe tip of a depth measurement gauge disposed in a top portion of the housing.
1 . An apparatus comprising:
a housing comprising
a top portion, and
a lower portion which connect together to house a spring; and
a bushing disposed inside the housing with a backside of a bushing rested against the spring, wherein the backside of the bushing is in contact with a probe tip of a depth measurement gauge disposed in a top portion of the housing, and
wherein the bushing has a first circular surface area portion that rests against an inside lip of the lower portion, and
wherein the bushing has a bushing column extending away from the lower portion with a circular top having a second circular surface area, with a smaller diameter than the first circular surface area, and a bushing tip hole cavity portion at a center of the bushing column, and
wherein the bushing column protrudes outside a surface area of the lower portion to make flush contact with a resting surface while the depth measurement gauge measures a depth of a fastener disposed on the resting surface and inside the bushing column.
2 . The apparatus of claim 1 , wherein a hole in the lower portion has a larger diameter than a diameter of a hole in the top portion.
3 . The apparatus of claim 1 , wherein the top and the lower portions each include threaded portions to screw into one another to form a flush cylinder as the housing.
4 . The apparatus of claim 1 , wherein the backside of the bushing is circular and has a smaller diameter than a diameter of a cross-sectional area of a cavity inside the housing.
5 . The apparatus of claim 4 , wherein the backside of the bushing has a larger diameter than a front side of the bushing which comprises a raised hollow column that extends away from the bushing.
6 . The apparatus of claim 1 , wherein the backside of a bushing base compresses the spring when a front side of the bushing is pressed against a surface.
7 . The apparatus of claim 1 , wherein a screw disposed on the top portion holds a probe sheath of the depth measurement gauge in position while the probe tip extending from the probe sheath is in contact with the backside of the bushing inside the housing.