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특허 상세정보

Outlet box knockout

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02G-003/08    H02G-003/18    B65D-006/40    B65D-006/00   
미국특허분류(USC) 220/003.2; 220/254.1; 220/266; 220/277; 220/284; 220/661; 174/666
출원번호 US-0680798 (2003-10-07)
등록번호 US-7353961 (2008-04-08)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Jones Day
인용정보 피인용 횟수 : 12  인용 특허 : 34

An electrical outlet box molded of plastic material has a knockout arrangement in a box wall that is formed by inner, intermediate and outer circular grooves that are eccentrically positioned to overlap at a tangent location and define inner, intermediate and outer eccentrically positioned circular knockouts. The grooves vary in depth from a minimum depth at the tangent location to a maximum depth opposite from the tangent location. Areas of increased weakness are provided in the box wall at the bottoms of at least the inner and intermediate grooves, an...


We claim: 1. A wall having at least one knockout arrangement therein, said knockout arrangement comprising eccentrically positioned inner, outer and intermediate knockouts bounded by inner, outer and intermediate circular grooves in said wall, said grooves overlying one another at a tangent location, said grooves having a common first depth greater than zero at said tangent location and a second depth that is greater than said first depth at a location generally opposite from said tangent location. 2. The wall of claim 1 including at least one area of...

이 특허에 인용된 특허 (34)

  1. Gavin Norman W. (2545 Ridge Rd. North Haven CT 06473). Asymmetrical pipe seal and closure member. USP1994025286040.
  2. Roesch, Mark A.; Reviock, Sr., Dennis P.; Carter, Cheryl Renee. Breakaway member. USP2005096940017.
  3. Hinrichs, James O.. Bulged single-hinged scored rupture having a non-circular varying depth score line. USP2004016672389.
  4. Daoud Bassel Hage. Concentric strain relief mechanism for variable diameter cables. USP2000026031182.
  5. Gray James W. (Tucson AZ). Device to remove concentric knockouts in electrical apparatus. USP1980024189964.
  6. Hobbs Billy J. ; Mulvey Philip A. ; Mitchell Jerry P. ; Howe Sam H. ; Crisman Charles T.. Dual drain outlet box. USP2000106125881.
  7. Drolen ; Jr. Fred W. (Worth IL). Easy opening end unit with tapered score. USP1982034320850.
  8. Bordwell Mark A. (Memphis TN). Eccentric knockouts. USP1993035191171.
  9. Jorgensen Robert W. (Niles MI) Lewis Thomas E. (South Bend IN) Kesler Gregory J. (South Bend IN). Eccentric knockouts for metal boxes. USP1987024640433.
  10. Hull, Eric G.; Revlock, Sr., Dennis P.. Electrical bracket. USP2004116812405.
  11. Hull, Eric G.; Revlock, Sr., Dennis P.. Electrical bracket. USP2005036870101.
  12. Jeffcoat Walter. Electrical disconnect for use with an appliance. USP1999055906508.
  13. Hull, Eric G.; Riedy, Charles H.; Revlock, Sr., Dennis P.. Electrical outlet box with alternative mounting flanges. USP2005076914187.
  14. Neitzel,Roger S.; Venegas,Ken R.. Enclosure with improved knockouts. USP2006097109415.
  15. Fischer Roy K.. Front-locking swivel ball loudspeaker mount. USP1998015704578.
  16. Jorgensen Robert W.. Knockout arrangement providing connection pattern choice on electrical junction box and cover plate arrangement for mou. USP1998035728973.
  17. Sharp Jeffrey O.. Knockout pattern for bundled wire and conduit fittings. USP2000086103973.
  18. Tallmadge Bruce J. ; Rice Jeffrey L.. Load bearing grommet assembly. USP1999095950277.
  19. Gerken Michael Thomas ; Boucher George Joseph ; Squillace Dominick Paul ; Tremmel Hermann F. ; Wise Randall Dean. Molded plastic enclosure. USP2001066242697.
  20. Hibbert David A. (Tolland CT) Newmark Larry J. (Avon CT) Smith James I. (Avon CT) Brasel Timothy C. (Pittsfield MA) Wung Peter C. F. (Pittsfield MA). Molded plastic enclosure for disconnect switches. USP1987064675782.
  21. Newmark Larry J. (Avon CT) Hibbert David A. (Tolland CT). Molded plastic enclosure for electric service apparatus. USP1987084688146.
  22. Fritsch Ronald J. (Sussex WI). Panel-mounted control station housing. USP1987124716496.
  23. Gavin Norman (2545 Ridge Rd. North Haven CT 06473). Pipe seal and closure member. USP1989024805920.
  24. Ceylan Muzaffer,DEX. Plastic terminal box. USP1998065769659.
  25. Gehrs Donald F. (Brandon MS) White Percy A. (Clinton MS). Polymeric electrical enclosure with improved knockout. USP1995085444183.
  26. White Percy A. (Clinton MS). Polymeric enclosure for electrical apparatus. USP1992095148348.
  27. Eversole Larry R. (232 Hickory Ridge Spring TX 77381). Register box and wye. USP1988064750411.
  28. DeBartolo ; Jr. Joseph V. (North Stonington CT). Rotation-limiting knockout configuration. USP1991085043536.
  29. Daoud Bassel H.. Sealing device for telecommunications equipment enclosures. USP1999095959250.
  30. Gretz Thomas J.. Siding box. USP2001056239368.
  31. King Daniel F.. Tub box. USP2001076264056.
  32. Weiss, Bruce W.; Alwardt, Keith A.. Twist out sealed conduit knockout. USP2004076765147.
  33. Gretz Thomas J.. Two-piece siding box. USP1998095804764.
  34. Michael J. Shotey ; Marcus J. Shotey ; Edgar W. Maltby. Universal cover plate. USP2002086441307.