# US 10,117,421 B2 · Magnetic clasp animal leash assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,421 B2 - Document ID: US10117421B2 - Status: Granted - Kind: B2 - Application number: 15/464,760 - Filed: 2017-03-21 - Published: 2017-07-06 - Granted: 2018-11-06 - Earliest claimed: 2015-01-26 - Applicants: Jason Durfee - Inventors: Jason Durfee - Web page: https://patentgrep.com/patent/US10117421B2 ## CPC - A01K 27/005: {Quick-couplings, safety-couplings or shock-absorbing devices between leash and collar} - A01K 27/003: {Leads, leashes} - F16B 1/00: Devices for securing together, or preventing relative movement between, constructional elements or machine parts - F16B 45/023: {the closing member pivoting about an axis perpendicular to the plane of the hook} - F16B 45/026: {and including a coil type spring} - F16B 45/035: {the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped} - F16B 45/049: {provided with means biasing the closing member} - F16B 2200/83: Use of a magnetic material - Y10T 24/32: having magnetic fastener - A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A magnetic clasp animal leash assembly for connecting to an animal collar having at least one metallic leash attachment ring defining an aperture. The assembly having a first member and a second member moveable with respect to one another between a closed position and an open position. The two members have an internal surface creating an aperture in a closed state. Outer ends of the two members are spaced from one another creating a clear passage with respect to the internal surface defining the aperture in an opened state. A magnet is located opposite from the clear passage proximate to the internal surface of the aperture. An actuator assembly is engageable with the two members to drive the two members toward the open position. ## Claims ### Claim 1 A clasping animal leash assembly for connecting to an animal collar having at least one metallic leash attachment ring defining an aperture, the assembly comprising: a first member and a second member moveable with respect to one another between a closed position with the first member and the second member having an internal surface creating an aperture in a closed state therebetween and an open position with outer ends of the first member and the second member spaced from one another creating a clear passage with respect to the internal surface defining the aperture in an opened state; a magnet located opposite from the clear passage and proximate to the internal surface of the aperture; an actuator assembly engageable with the first member and the second member to drive the first and second members toward the open position; and the first member having a tubular aperture extending inwardly from a distal end and of complementary size and shape to receive a complementary shaped distal end of the second member. ### Claim 2 (depends on 1) The assembly of claim 1, wherein the assembly further comprises: a biasing member for urging the first member and the second member toward the closed position; and wherein the actuator assembly drives the first and second members against the urging of the biasing member toward the open position. ### Claim 3 (depends on 1) The assembly of claim 1, wherein the actuator assembly further comprises: a cable guide fixed to a proximal end of one of the first and second member; and a cable fixed to the cable guide. ### Claim 4 (depends on 1) The assembly of claim 1, wherein the actuator assembly further comprises: an animal leash adapter at a proximal end of the actuator assembly. ### Claim 5 (depends on 1) The assembly of claim 1, wherein the first member and the second member further comprise: the first member and the second member each having a cross sectional area sized to fit in the aperture defined by the leash attachment ring of the animal collar allowing the first member and the second member to encircle and lockingly engage the leash attachment ring of the animal collar leash attachment when in the closed position. ### Claim 6 (depends on 1) The assembly of claim 1, wherein the magnet further comprises: a magnet of sufficient strength to provide for hands-free alignment of the clear passage formed by the first and second members when in the open position with respect to the at least one metallic leash attachment ring of the animal collar when placed in close proximity to the animal collar. ### Claim 7 A magnetic clasping assembly for facilitating attachment of an animal leash to a metallic animal collar leash attachment defining an aperture comprising: a first member and a second member moveable with respect to one another between a closed position with the first member and the second member having an internal surface creating an aperture in a closed state therebetween and an open position with outer ends of the first member and the second member spaced from one another creating a clear passage with respect to the internal surface defining the aperture in an opened state; a magnet located opposite from the clear passage and proximate to the internal surface of the aperture; a cable-driven actuator assembly engageable with the first member and the second member to drive the first and second members toward the open position; and the first member having a tubular aperture extending inwardly from a distal end and of complementary size and shape to receive a complementary shaped distal end of the second member. ### Claim 8 (depends on 7) The assembly of claim 7, wherein the cable-driven actuator assembly further comprises: a loop-shaped holding portion at a proximal end of the cable-driven actuator assembly. ### Claim 9 (depends on 7) The assembly of claim 7, wherein the cable-driven actuator assembly further comprises: an animal leash adapter at a proximal end of the actuator assembly. ### Claim 10 (depends on 7) The assembly of claim 7 further comprising: the first member and the second member each having a cross sectional area sized to fit in the aperture of the metallic animal collar leash attachment allowing the first member and the second member to encircle and lockingly engage the metallic animal collar leash attachment in the closed position. ### Claim 11 (depends on 7) The assembly of claim 7, wherein the magnet further comprises: a magnet of sufficient strength to provide for hands-free alignment of the metallic animal collar leash attachment to the first and second members when in the open position and placed within close proximity to the metallic animal collar leash attachment. ### Claim 12 A magnetic clasping assembly for aligning an animal leash to a metallic animal collar leash attachment, the assembly comprising: a first member and a second member moveable with respect to one another between a closed position with the first member and the second member creating an aperture in a closed state therebetween, and an open position with outer ends of the first member and the second member spaced from one another creating a clear passage with respect to the internal surface defining the aperture in an opened state, the first and second members each having a cross sectional area sized to fit in the aperture of an animal collar leash attachment allowing the first member and the second member to encircle and lockingly engage the animal collar leash attachment in the closed position; a magnetic pivot pin pivotally connecting the first and second members with respect to one another for movement between the closed and open positions, the magnetic pivot pin located opposite from the clear passage proximate to the internal surface of the aperture of sufficient strength to provide for hands-free alignment of a metallic animal collar leash attachment to the first and second members when in the open position and placed within close proximity to the metallic animal collar leash attachment; and a cable-driven actuator assembly engageable with the first member and the second member to drive the first and second members toward the open position and to drive the first and second members toward the closed position, the cable-driven actuator assembly including at least one cable guide fixed with respect to the first and second members, a cable fixed to the at least one cable guides for moving one of the first and second members relative another of the first and second members, and a loop-shaped cable portion at a proximal end of the actuator assembly.