|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||H02G-009/10 B65D-050/00 B21D-053/24 F16B-037/00 F16B-037/02|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 87|
A nut configured to threadably engage an external thread of a bolt is provided. The nut generally comprises an upper portion that defines a first thread, a lower portion that defines a second thread, and a sidewall portion that connects the upper portion and the lower portion. The upper portion may be separated from the lower portion by a gap, and the sidewall portion may include a first sidewall spaced apart from a second sidewall.
1. A tamper resistant closure mechanism for selectively securing a lid to a utility vault, comprising: a utility vault having a plurality of sidewalls and an opening;a cap operably engaged to said utility vault;a lid sized to rest on said cap and cover said opening of said utility vault;a locking assembly interconnected to said cap and comprising: an upper portion having an aperture configured to receive a bolt;a lower portion spaced apart from the upper portion by a gap, the lower portion comprising a first lower portion plate opposed by a second lower ...