Ornamental defensive ring

Claim 2

In a finger ring, at least first and second like ring sections each sized for wear about the finger of a wearer, first means connecting said sections in superposed contiguous relation coaxially of a common central first axis through the section openings, and for relative angular adjustment with respect to each other about said first axis, between first and second limiting positions, resilient means acting between said sections and urging the same into said second position, and latch means connected between said sections and releasably holding the same in said first position, against the urge of said resilient means.

Claim 3

The ring of claim 1, each said section being externally shaped to form at least one radially- and outwardly-projecting point, the point of each section being disposed in a common plane containing said first axis when said sections are in said first position, and angularly related about said first axis when said sections are in said second position.

Claim 4

The ring of claim 1, each said section being externally shaped to form first and second radially- and outwardly-projecting points angularly spaced through a small angle about said first axis, the first and second points of each section being disposed in respective ones of first and second angularly-related planes containing said first axis when said sections are in said first position, each said point being disposed in a respective one of four planes containing and angularly related about said axis, when said sections are in said second position.

Claim 5

The ring of claim 1, there being in addition to said first and second ring sections, third, fourth and fifth ring sections, all said sections connected by said first means in stacked relation in the order mentioned, coaxially of said first axis, said first means also mounting said first section for limited angular pivoting relatively to the remaining sections, about a second axis normal to said first axis, said latch means being released by and in response to limited angular pivoting of said first section, about said second axis.

Claim 6

The ring of claim 4, said fifth section also being mounted for limited angular pivoting relatively to said second, third and fourth sections, about a third axis parallel to said second axis, said latch means comprising a rod passing through aligned bores in said second and fourth sections and an arcuate slot in said third section, said rod having its ends seatable in a selected pair of two pairs of recesses angularly related about said first axis and in the confronting surfaces of said first and fifth sections, and spring means engaging and urging said first and fifth sections apart, at points on the side of said first axis, opposite said recesses.

Claim 7

The ring of claim 4, said first means comprising (a) a cylinder sized for a smooth fit about the finger of a wearer, said sections encircling said cylinder with a smooth fit, (b) first and second pivot pin means aligned along a common diameter of said cylinder and first section and interconnecting the same to define said second axis.

Claim 8

The ring of claim 1, said first means comprising a cylinder sized for a smooth fit about the finger of a wearer, there being in addition to said first and second ring sections, third, fourth and fifth ring sections encircling said cylinder and sequentially disposed in the order mentioned, said third section being fixed with said cylinder between the ends thereof, said second and fourth sections being journaled on said cylinder, means interconnecting said second and fourth sections for rotation as a unit, said second section having a first arcuate spring seat channel in its inner periphery, abutment means fixed with said third section and having an end projecting into said first channel, said resilient means comprising a coil spring disposed in said first channel and compressed between one end thereof and said abutment means.

Claim 9

The ring of claim 7, there also being a second arcuate spring seat channel in the inner periphery of said fourth section, said abutment means also extending into said second channel, said resilient means also comprising a second coil spring in said second channel and compressed between one end thereof and said abutment means.

Claim 10

The ring of claim 7, the means interconnecting said second and fourth sections including a rod parallel with said first axis and passing with a smooth fit through aligned bores in said second and fourth sections and an arcuate slot in said third section, for axial translation relatively thereto.

Claim 11

The ring of claim 9, said first means connecting said first and fifth sections to said cylinder for limited pivoting about respective second and third mutually parallel axes normal to said first axis and defining a reference plane, said rod being on one side of said plane and having ends to seat in a selected pair of two pairs of recesses in the confronting faces of said first and fifth sections, respectively, and spring means on the other side of said reference plane, acting between said first and fifth sections and continuously urging said recesses toward the ends of said rod to thereby form said latch means, said first and fifth sections being tapered in thickness radially outward toward said spring means, to enable movement of said recesses away from the ends of said rod.

Claim 12

The ring of claim 1, said first means comprising a cylinder sized for a smooth fit about the finger of a wearer, there being in addition to said first and second ring sections, third, fourth and fifth ring sections encircling said cylinder and sequentially disposed thereon in the order mentioned, said third section being fixed with said cylinder between the ends thereof, said second and fourth sections being journaled on said cylinder, a rod parallel with said first axis, passing through an arcuate slot in said third section and having its ends fixed in respective bores in said second and fourth sections, said latch means comprising a lever pivoted between its ends to said third section and having one end hooked to engage about said rod and maintain said second and fourth sections in said first position, the other end of said lever being manually actuable to move said hooked end free of said rod.

Claim 13

The ring of claim 11, said lever being disposed in a radial slot in said third section and communicating with said arcuate slot, and a spring in said radial slot contacting and urging said lever to move its hooked end into the path of said rod in and along said arcuate slot.

Claim 14

The ring of claim 12, there being axially-registering arcuate slots in and adjacent the inner peripheries of said first, third and fifth sections, a shaft passing through said slots and, with a smooth fit, through bores in said second and fourth sections, said shaft projecting at its ends from the arcuate slots in said first and fifth sections to enable manual arcuate adjustment of said second and fourth sections from said second to said first position.

Claim 15

The ring of claim 13, said first section having an arcuate spring seat channel in its inner face and communicating with the arcuate slot therein, and a coil spring disposed in said channel and compressed therein between one end thereof and said shaft.

Claim 16

The ring of claim 14, each said section being formed to define first and second outwardly-projecting points angularly spaced about said first axis through a small angle, said first and second points of all sections being disposed in a respective one of first and second planes through said first axis, when said sections are in said first position, the first and second points of said second and fourth sections being disposed in a respective one of third and fourth planes through said first axis, and angularly offset from said first and second planes, when said sections are in said second position.