Electrical fitting for non-metallic electrical cable
View Patent ↗An electrical fitting to secure multiple non-metallic electrical cables has a body having a first end for insertion into an electrical panel box or to receive conduit, and a second end having an opening with apertures formed near a periphery thereof, the body having a hollow interior for passage of cables, and a cable securing device having a plate dimensioned to mount to the body and clamping devices, each having a pair of resilient clamp fingers to secure at least one cable, each finger having a terminating end adjacent the terminating end of the other finger, a pair of squeezable arms extending to facilitate cable insertion and removal, and a pair of anchoring fingers extending from the first surface of the plate, each anchoring finger having a protruding member to snap into one of the apertures so as to secure the cable securing device especially when the arms are squeezed.
1. An electrical fitting to secure multiple non-metallic electrical (NM) cables, comprising:
a body having a first end having a bore formed therethrough either dimensioned for insertion into a knockout hole of an electrical panel box or the like or dimensioned to receive an electrical metallic tubing or rigid conduit, and a second end having an opening formed therein and with apertures formed near a periphery thereof, the body having a hollow interior for passage of non-metallic electrical cables therethrough; and
a cable securing device having:
a plate dimensioned to mount to the body at the second end of the body, and
a plurality of clamping devices integrally formed with the plate, each clamping device having
a pair of clamp fingers extending from a first surface of the plate, each finger of the pair of clamp fingers having a terminating end adjacent the terminating end of the other clamp finger of said pair of clamp fingers, each pair of clamp fingers dimensioned to allow passage of at least one NM electrical cable between said terminating ends, the clamp fingers dimensioned for resilient movement relative to each other so as to grasp an NM electrical cable or cables passing between the terminating ends thereof,
a pair of arms integrally formed at a second end of each clamp finger and extending beyond a second surface of the plate, the arms dimensioned for squeezing, and
a pair of anchoring fingers integrally formed with the pair of clamp fingers and arms, said anchoring fingers extending from the first surface of the plate, each anchoring finger having a protruding member formed on an end of said anchoring finger, each protruding member dimensioned for receipt in one of the apertures formed in the body;
wherein each protruding member is urged toward the body when the arms of the clamping device are squeezed together while the terminating ends of the clamp fingers are correspondingly moved away from each other, thereby facilitating insertion of a cable or cables between the terminating ends of the clamp fingers or release of a cable or cables secured by the terminating ends of the clamp fingers, while simultaneously securing the clamping device to the body during squeezing of the arms.
2. The electrical fitting according to claim 1 , wherein each clamp finger has at least one ridge formed thereon facing toward the other clamp finger of said pair of clamp fingers, said at least one ridge of each clamp finger to facilitate grasping of an electrical cable.
3. The electrical fitting according to claim 2 , wherein the cable securing device is fabricated from nylon.
4. The electrical fitting according to claim 3 , wherein the nylon is nylon 6-6.
5. The electrical fitting according to claim 3 , wherein the nylon is nylon 6-12.
6. The electrical fitting according to claim 1 , wherein the first end of the body has a cylindrical shape with threads on an exterior of the first end, the first end dimensioned for receipt of a locking nut so as to secure the fitting to a panel box or the like after insertion through a knockout of the panel box or the like.
7. The electrical fitting according to claim 1 , wherein the first end of the body has a cylindrical shape with extending flexible tabs formed thereon for snap-in engagement to a panel box or the like when inserted into a knockout hole of the panel box or the like.
8. The electrical fitting according to claim 7 , wherein the first end has a flange formed thereon in proximity to the tabs so as to facilitate said snap-in engagement.
9. The electrical fitting according to claim 1 , wherein the first end of the body is cylindrical in shape dimensioned for receipt of a metallic sleeve thereover and having at least one opening formed therein, the metallic sleeve providing additional structural rigidity to the first end of the body, the sleeve having a threaded hole formed therein alignable with the at least one opening formed in the first end of the body for passage of a fastener so as to secure an electrical metallic tubing or rigid conduit when placed within the bore formed in first end of the plastic body.
10. The electrical fitting according to claim 1 , wherein the body is formed from plastic.
11. The electrical fitting according to claim 10 , wherein the plastic is polyvinylchloride.
12. The electrical fitting according to claim 1 , wherein the body is fabricated from die cast zinc or die cast aluminum.
13. The electrical fitting according to claim 1 , wherein the plurality of clamping devices equals three.
14. The electrical fitting according to claim 1 , wherein the plurality of clamping devices equals two.
15. A cable securing device comprising:
a plate dimensioned to mount to a body of an electrical fitting, and
a plurality of clamping devices integrally formed with the plate, each clamping device having
a pair of clamp fingers extending from a first surface of the plate, each finger of the pair of clamp fingers having a terminating end adjacent the terminating end of the other clamp finger of said pair of clamp fingers, each pair of clamp fingers dimensioned to allow passage of at least one non-metallic (NM) electrical cable between said terminating ends, the clamp fingers dimensioned for resilient movement relative to each other so as to grasp an NM electrical cable or cables passing between the terminating ends thereof,
a pair of arms integrally formed at a second end of each clamp finger and extending beyond a second surface of the plate, the arms dimensioned for squeezing, and
a pair of anchoring fingers integrally formed with the pair of clamp fingers and arms, said anchoring fingers extending from the first surface of the plate, each anchoring finger having a protruding member formed on an end of said anchoring finger, each protruding member dimensioned for receipt in an aperture formed in a body of an electrical fitting;
wherein each protruding member is urged toward the body when the plate is mounted to the body and when the arms of the clamping device are squeezed together while the terminating ends of the clamp fingers are correspondingly moved away from each other, thereby facilitating insertion of a cable or cables between the terminating ends of the clamp fingers or release of a cable or cables secured by the terminating ends of the clamp fingers, while simultaneously securing the clamping device to the body during squeezing of the arms.
16. The electrical fitting according to claim 15 , wherein each clamp finger has at least one ridge formed thereon facing toward the other clamp finger of said pair of clamp fingers, said at least one ridge of each clamp finger to facilitate grasping of an electrical cable.
17. The electrical fitting according to claim 16 , wherein the cable securing device is fabricated from nylon.
18. The electrical fitting according to claim 17 , wherein the nylon is nylon 6-6.
19. The electrical fitting according to claim 17 , wherein the nylon is nylon 6-12.
20. The electrical fitting according to claim 15 , wherein the plurality of clamping devices equals three.
21. The electrical fitting according to claim 15 , wherein the plurality of clamping devices equals two.