GB1299110A - Rigid electrical connector - Google Patents

Abstract

1299110 Two-part couplings BUNKERRAMO CORP 28 April 1970 [26 May 1969] 20358/70 Heading H2E An electrical connector comprises a plug 12 and receptacle 10 each having in a shell 30, 14 a contact containing insulating block 28, 18, at least one of the blocks 28, 18 being resilient. When the plug and socket are coupled a key 31 on the plug shell 30 enters a slot 22 in the receptacle shell 14 and three bayonet pins 16 on the receptacle enter helical slots 46 in a bayonet sleeve 44 which has screwed on to it a coupling ring 32 mounted on the plug shell 30 by a ring 34. A coupling ring 54 fits between the sleeve 44 and ring 32 and the plug shell 30 and has a key 52 which fits in a slot 56 in the coupling ring 32 and initially in a, slot 50 in the bayonet sleeve 44. As the coupling ring 32 is rotated it carries with it the coupling ring 54 and bayonet sleeve 44 and the bayonet pins 16 ride up the slots 46. When the bayonet coupling has been completed the end of the ring 54 abuts the end of the receptacle shell 14 and the key 52 is forced backwards out of the slot 50 in the bayonet sleeve 44 against the spring 58. As the coupling ring 32 is rotated further it carries the coupling ring 54 but not the bayonet sleeve 44 with it and the coupling ring 32 screws on to the bayonet sleeve 44 and draws the plug 12 and receptacle 10 together, compressing the resilient block 18 or 28 and forming an airtight seal between these blocks. An 0-ring 24 is included to enhance the sealing and the bayonet slots 46 may have a helix angle of 15 degrees to 30 feet (Fig. 5, not shown). In an alternative embodiment (Fig. 6 not shown) the coupling ring is screw threaded on to the plug shell and has the bayonet slots directly formed in it, the coupling being a combination of the bayonet coupling and the screw coupling between the coupling ring and plug shell.