Co-molded sealing ring for use in an electrical fitting, and a raintight compression connector and raintight compression coupler incorporating a co-molded sealing ring
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-005/08
F16J-015/02
F16L-021/04
H02G-003/06
출원번호
US-0291696
(2016-10-12)
등록번호
US-10240694
(2019-03-26)
발명자
/ 주소
DeCesare, Christopher W.
Smith, Lawrence J.
출원인 / 주소
BRIDGEPORT FITTINGS, INC.
대리인 / 주소
Ware, Fressola, Maguire & Barber LLP
인용정보
피인용 횟수 :
0인용 특허 :
45
초록▼
A co-molded sealing ring for use in an electrical fitting has an uncompressed state and a compressed state and includes a first segment formed from thermoplastic elastomer and a second segment co-molded to the first segment, formed from a medium-density polyethylene material. A space formed between
A co-molded sealing ring for use in an electrical fitting has an uncompressed state and a compressed state and includes a first segment formed from thermoplastic elastomer and a second segment co-molded to the first segment, formed from a medium-density polyethylene material. A space formed between the first segment and an inner surface of an electrical fitting connector body when the ring is in the uncompressed state, is at least partially filled by a portion of the first segment when the ring is in the compressed state; the second segment having an end surface positioned away from the first segment, the end surface dimensioned for contact by a gland ring so as to urge the sealing ring into the compressed state so that the first segment forms a seal between the inner surface of the connector body and an outer surface of a conduit positioned within the connector body.
대표청구항▼
1. A co-molded sealing ring for use in an electrical fitting, the co-molded sealing ring having an uncompressed state and a compressed state, the co-molded sealing ring comprising a first segment formed from thermoplastic elastomer and a second segment co-molded to the first segment, formed from a m
1. A co-molded sealing ring for use in an electrical fitting, the co-molded sealing ring having an uncompressed state and a compressed state, the co-molded sealing ring comprising a first segment formed from thermoplastic elastomer and a second segment co-molded to the first segment, formed from a medium-density polyethylene material attached at an end thereof to an end of the first segment, wherein a space formed between the first segment and an inner surface of a connector body of the electrical fitting when the co-molded sealing ring is in the uncompressed state, is at least partially filled by a portion of the first segment when the co-molded sealing ring is in the compressed state, wherein said second segment has an end surface positioned away from the first segment, said end surface of the second segment dimensioned for contact by a gland ring so as to urge the co-molded sealing ring into the compressed state so that said first segment forms a seal between the inner surface of the connector body and an outer surface of a conduit positioned within the connector body, wherein the first segment of the co-molded sealing ring has a circumferential rim at said end of said first segment and a circumferential notch near said end of the first segment and wherein the second segment of the co-molded sealing ring has a circumferential rim at said end of said second segment and a circumferential notch near said end of the second segment, said first segment circumferential rim interfitting with the circumferential notch of the second segment and the second segment circumferential rim interfitting with the circumferential notch of the first segment. 2. The co-molded sealing ring according to claim 1, wherein the first segment of the co-molded sealing ring has a sloping surface dimensioned to contact a recess shoulder in a bore of the connector body. 3. The co-molded sealing ring according to claim 2, wherein the second segment of the co-molded sealing ring has a sloping surface extending away from a lower surface of the second segment, said sloping surface dimensioned to contact a portion of the inner surface of the connector body. 4. The co-molded sealing ring according to claim 1, wherein a lower surface of the first segment is smooth and the lower surface of the second segment is smooth. 5. The co-molded sealing ring according to claim 1, wherein the electrical fitting is a raintight compression connector. 6. The co-molded sealing ring according to claim 1, wherein the electrical fitting is a raintight compression coupler. 7. The co-molded sealing ring according to claim 1, wherein the co-molded sealing ring has an uncompressed cross-sectional profile as shown in FIG. 28. 8. A co-molded sealing ring for use in an electrical fitting, the co-molded sealing ring having a first region, a second region and a third region, the second region formed between the first and third regions, the first region having a first sloping surface dimensioned to contact a recess shoulder in a bore of a connector body of said electrical fitting and the third region having a sloping surface dimensioned to contact an inner surface of the connector body, wherein a first segment of the co-molded sealing ring, comprising the first region and a portion of the second region, is formed from a thermoplastic elastomer material so that a space formed between the first segment and the inner surface of the connector body adjacent said recess shoulder when the co-molded sealing ring is in an uncompressed state, is at least partially filled by the first segment when the sealing ring is in a compressed state, and wherein a second segment of the co-molded sealing ring, comprising a remainder of said second region and said third region, is formed from a medium-density polyethylene material, said second segment co-molded to the first segment, said second segment having an end surface positioned away from the first segment, said end surface dimensioned for contact by a gland ring so as to urge the co-molded sealing ring into the compressed state, and further wherein the first and second segments each have a lower surface dimensioned to contact an outer surface of a conduit positioned within said bore of the connector body; whereby a raintight seal is established between the electrical fitting and the conduit when the sealing ring is in the compressed state. 9. The co-molded sealing ring according to claim 8, wherein the first segment of the co-molded sealing ring has a circumferential rim at an end thereof positioned away from the first sloping surface and a circumferential notch near said end positioned away from the first sloping surface and wherein the second segment of the co-molded sealing ring has a circumferential rim at an end thereof positioned away from said end surface and a circumferential notch near said end positioned away from the surface, said first segment circumferential rim interfitting with the circumferential notch of the second segment and the second segment circumferential rim interfitting with the circumferential notch of the first segment. 10. The co-molded sealing ring according to claim 9, wherein the lower surface of the first segment is smooth and the lower surface of the second segment is smooth. 11. The co-molded sealing ring according to claim 8, wherein the electrical fitting is a raintight compression connector. 12. The co-molded sealing ring according to claim 8, wherein the electrical fitting is a raintight compression coupler. 13. A raintight compression connector comprising: a connector body having a first portion and a second portion and a bore extending through the first portion and the second portion, the first portion dimensioned for receipt of a conduit in said bore;a gland nut having internal threads dimensioned for threaded engagement with first external threads formed in the first portion at the first end;a gland ring dimensioned for contact with the gland nut so as to secure the gland nut and the first portion of the connector body to the conduit when the conduit is inserted into the first portion;a co-molded sealing ring dimensioned for contact with the first portion of the connector body so as to make sealing contact with the conduit when the conduit is inserted into the first portion, said co-molded sealing ring having first, second and third regions, the second region formed between the first and third regions, the first region having a first sloping surface dimensioned to contact a recess shoulder in the bore of the first portion of the connector body and the third region having a third sloping surface dimensioned to contact an inner surface of the first portion of the connector body, wherein a first segment of the co-molded sealing ring, comprising the first region and a portion of the second region, is formed from a thermoplastic elastomer material so that a space formed between the first segment and the inner surface of the connector body adjacent said recess shoulder when the co-molded sealing ring is in an uncompressed state, is at least partially filled by the first segment when the co-molded sealing ring is in a compressed state, and wherein a second segment of the co-molded sealing ring, comprising a remainder of said second region and said third region, is formed from a medium-density polyethylene material, said second segment having an end surface positioned away from the first segment, said end surface dimensioned for contact by athe gland ring so as to urge the co-molded sealing ring into the compressed state, and further wherein the first and second segments each have a lower surface dimensioned to contact an outer surface of a conduit positioned within said bore of the connector body; whereby a raintight seal is established between the electrical fitting and the conduit when the sealing ring is in the compressed state;wherein the connector body has an outer flange and wherein the second portion of the connector body is dimensioned for receipt of a knockout gasket, the second portion having second external threads dimensioned for receipt of a locknut for securing the knockout gasket positioned around a knockout hole in an electrical enclosure between said outer flange and the electrical enclosure, thereby forming a raintight seal therewith. 14. The raintight compression connector according to claim 13, wherein the slope of said third sloping surface is approximately ten degrees relative to the lower surface of the co-molded sealing ring. 15. The raintight compression connector according to claim 14, wherein the slope of said first sloping surface is approximately thirty degrees relative to the lower surface of the co-molded sealing ring. 16. The raintight compression connector according to claim 15, wherein the second region has a second sloping surface and wherein the slope of the second sloping surface is approximately two degrees relative to the lower surface of the co-molded sealing ring. 17. The raintight compression connector according to claim 13, wherein the co-molded sealing ring has an overall length and the third region of said co-molded sealing ring is approximately twenty-three percent of said overall length. 18. The raintight compression connector according to claim 17, wherein the first region of said co-molded sealing ring is approximately six and one-half percent of said overall length of the co-molded sealing ring. 19. The raintight compression connector according to claim 13, wherein the co-molded sealing ring has an uncompressed cross-sectional profile as shown in FIG. 28. 20. A raintight compression coupler comprising: a connector body having a first portion and a second portion and a bore extending through the first portion and the second portion, the first portion dimensioned for receipt of a conduit in said bore, the first portion having a first end and a second end and the second portion dimensioned for receipt of a conduit in said bore, the second portion having a first end and a second end;a first gland nut having internal threads dimensioned for threaded engagement with first external threads formed in the first portion at its first end;a first gland ring dimensioned for contact with the first gland nut so as to secure the first gland nut and the first portion of the connector body to the first conduit when the first conduit is inserted into the first portion;a first co-molded sealing ring dimensioned for contact with the first portion of the connector body so as to make sealing contact with the first conduit when the first conduit is inserted into the first portion, said first co-molded sealing ring having a first, second and third region, the second region formed between the first and third regions, the first region having a sloping surface dimensioned to contact a recess shoulder in the bore of the first portion of the connector body and the third region having a sloping surface dimensioned to contact an inner surface of the first portion of the connector body, wherein a first segment of the co-molded sealing ring, comprising the first region and a portion of the second region, is formed from a thermoplastic elastomer material so that a space formed between the first segment and the inner surface of the connector body adjacent said recess shoulder when the co-molded sealing ring is in an uncompressed state, is substantially filled by the first segment when the co-molded sealing ring is in a compressed state, and wherein a second segment of the co-molded sealing ring, comprising a remainder of said second region and said third region, is formed from a medium-density polyethylene material, said second segment having an end surface positioned away from the first segment, said end surface dimensioned for contact by the first gland ring so as to urge the co-molded sealing ring into the compressed state, and further wherein the first and second segments each have a lower surface dimensioned to contact an outer surface of a conduit positioned within said bore of the connector body, whereby a raintight seal is established between the electrical fitting and the conduit when the sealing ring is in the compressed state; anda second gland nut having internal threads dimensioned for threaded engagement with second external threads formed in the second portion at its first end;a second gland ring dimensioned for contact with the second gland nut so as to secure the second gland nut and the second portion of the connector body to the second conduit when the second conduit is inserted into the second portion; anda second co-molded sealing ring dimensioned for contact with the second portion of the connector body so as to make sealing contact with the second conduit when the second conduit is inserted into the second portion, said second co-molded sealing ring having a first, second and third region, the second region formed between the first and third regions, the first region having a sloping surface dimensioned to contact a recess shoulder in the bore of the first portion of the connector body and the third region having a sloping surface dimensioned to contact an inner surface of the second portion of the connector body wherein a first segment of the co-molded sealing ring, comprising the first region and a portion of the second region, is formed from a thermoplastic elastomer material so that a space formed between the first segment and the inner surface of the connector body adjacent said recess shoulder when the co-molded sealing ring is in an uncompressed state, is at least partially filled by the first segment when the co-molded sealing ring is in a compressed state, and wherein a second segment of the co-molded sealing ring, comprising a remainder of said second region and said third region, is formed from a medium-density polyethylene material, said second segment having an end surface positioned away from the first segment, said end surface dimensioned for contact by the second gland ring so as to urge the co-molded sealing ring into the compressed state, and further wherein the first and second segments each have a lower surface dimensioned to contact an outer surface of a conduit positioned within said bore of the connector body, whereby a raintight seal is established between the electrical fitting and the conduit when the sealing ring is in the compressed state. 21. The raintight compression coupler according to claim 20, wherein the slopes of said third sloping surface of the first co-molded sealing ring and the third sloping surface of the second co-molded sealing ring are approximately ten degrees relative to the lower surface of the first co-molded sealing ring and the lower surface of the second co-molded sealing ring respectively. 22. The raintight compression coupler according to claim 21, wherein the slopes of the first sloping surface of the first co-molded sealing ring and the first sloping surface of the co-molded second sealing ring are approximately thirty degrees relative to the lower surface of the first co-molded sealing ring and a lower surface of the second co-molded sealing ring respectively. 23. The raintight compression coupler according to claim 22, wherein the second region of the first co-molded sealing ring and the second region of the second co-molded sealing ring each has a second sloping surface and wherein the slopes of the second sloping surface of the first co-molded sealing ring and the second sloping surface of the second co-molded sealing ring are approximately two degrees relative to the lower surface of the first co-molded sealing ring and the lower surface of the second co-molded sealing ring respectively. 24. The raintight compression coupler according to claim 20, wherein the first co-molded sealing ring and the second co-molded sealing ring each has an overall length and the third region of said first and second co-molded sealing rings are each approximately twenty-three percent of said overall length. 25. The raintight compression coupler according to claim 24, wherein the first region of said first co-molded sealing ring and said second co-molded sealing ring are each approximately six and one-half percent of said respective overall length of the first and second co-molded sealing rings. 26. The raintight compression coupler according to claim 20, wherein the first co-molded sealing ring and the second co-molded sealing ring each has an uncompressed cross-sectional profile as shown in FIG. 28.
Couto Luis R. (Hillside NJ) Bawa Jaspal S. (Neshanic Station NJ) Mancini Giacomo F. (Piscataway NJ) Brodeur Marc (Iberville CAX), Connector for terminating electrical cable assemblies of multiple configurations.
Schwarz Albert J. (Lincolnwood IL) Pietramale Anthony M. (Schaumburg IL) Moerhing Richard W. (Westchester IL), Tube fitting with variable tube insertion.
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