# US 10,370,845 B2 · Rotating pin locking connector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,845 B2 - Document ID: US10370845B2 - Status: Granted - Kind: B2 - Application number: 15/452,755 - Filed: 2017-03-08 - Published: 2018-09-13 - Granted: 2019-08-06 - Earliest claimed: 2017-03-08 - Assignees: Maestro International, LLC - Applicants: Maestro International, LLC - Inventors: Sidney E. Francies, III - Web page: https://patentgrep.com/patent/US10370845B2 ## CPC - E04B 1/483: {Shear dowels to be embedded in concrete} - E04B 1/043: {Connections specially adapted therefor} - F16B 5/0088: {with locking means moving substantially perpendicular to the main plane, e.g. pins, screws} - F16B 5/0225: {allowing for adjustment parallel to the plane of the plates} - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - 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) ## Abstract A connector includes a receiver member having a hollow rectangular tube to be cast with a structure. An attachment member has a post extending with a pin extending radially through the post at a distal end. The pin is shorter than the longer rectangular dimension and longer than the shorter rectangular dimension. When the attachment member is positioned adjacent the receiver member and oriented with a longitudinal axis of the pin parallel to the longer rectangular dimension, the post can be inserted into the hollow tube and rotated to a position where the pin abuts a distal end of the hollow tube to lock the attachment member to the receiver member. ## Claims ### Claim 1 A connector for connecting an element to a cast structure, comprising: a receiver member having a hollow tube with a first cross sectional dimension greater than a second cross sectional dimension and a set of anchors adapted to anchor the receiver member in a cast structure as the cast structure is cast; and an attachment member having a back plate, and a support plate extending at an angle from the back plate configured to support an element to be connected the cast structure; wherein the attachment member has a post extending from a rear surface of the back plate and a pin extending radially through the post at a distal end, the post having a length from the rear surface to the pin nominally greater than the length of the tube, and the pin being shorter than the first cross sectional dimension and longer than the second cross sectional dimension so that when the attachment member is positioned adjacent the receiver member and oriented with a longitudinal axis of the pin parallel to the first cross sectional dimension, the post can be inserted into the hollow tube and rotated to a position where the pin abuts a distal end of the hollow tube to lock the attachment member to the receiver member. ### Claim 2 (depends on 1) The connector of claim 1 wherein the receiver member comprises a face plate with an aperture having at least the first cross sectional dimension and the second cross sectional dimension in registry with the hollow tube. ### Claim 3 (depends on 1) The connector of claim 1 wherein the attachment member further comprises an adjustable bolt. ### Claim 4 (depends on 1) The connector of claim 1 wherein the attachment member further comprises a saddle. ### Claim 5 (depends on 1) The connector of claim 1 wherein the set of anchors is welded to the hollow tube. ### Claim 6 (depends on 1) The connector of claim 1 wherein the set of anchors includes four anchors. ### Claim 7 (depends on 1) The connector of claim 1 wherein each anchor of the set of anchors includes a shaft longer than the hollow tube and foot at a distal end of each shaft. ### Claim 8 (depends on 1) The connector of claim 1 wherein the post extends through the back plate and is secured to the facing surface of the back plate. ### Claim 9 (depends on 1) The connector of claim 1 wherein one of the pin or the distal end of the hollow tube provides stops at predetermined rotational positions. ### Claim 10 A method of connecting an element to a cast structure, the method comprising: providing a cast structure having an embedded receiver member, the receiver member having a hollow tube with a first cross sectional dimension greater than a second cross sectional dimension, and a space at a distal end of the hollow tube; providing an attachment member having a back plate, a support plate extending at an angle from the back plate, a post extending from a rear surface of the back plate, and a pin extending radially through the post at a distal end, the post having a length from the rear surface to the pin nominally greater than the length of the hollow tube, and the pin being shorter than the first cross sectional dimension and longer than the second cross sectional dimension; orienting the attachment member with a longitudinal axis of the pin parallel to the first cross sectional dimension; inserting the pin into the hollow tube until the pin is in the space; rotating the attachment member relative to the cast structure until the pin abuts the distal end of the hollow tube; and connecting an element and the support plate. ### Claim 11 (depends on 10) The method of claim 10 wherein the connecting includes mounting the element on the support plate. ### Claim 12 (depends on 10) The method of claim 10 wherein the connecting includes mounting the support plate on the element. ### Claim 13 (depends on 10) The method of claim 10 wherein the connecting includes adjusting the element relative to the support plate. ### Claim 14 (depends on 10) The method of claim 10 wherein the rotating includes rotating the attachment member relative to the cast structure about 90 degrees. ### Claim 15 (depends on 10) The method of claim 10 wherein the rotating includes rotating the attachment member relative to the cast structure less than 90 degrees. ### Claim 16 (depends on 10) The method of claim 10 wherein the element is a second cast structure. ### Claim 17 (depends on 10) The method of claim 10 wherein the cast structure is concrete. ### Claim 18 (depends on 10) The method of claim 10 wherein the attachment member includes a saddle and the connecting includes nesting the element in the saddle.