Tamper resistant closure mechanism for a utility vault
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02G-009/10
B65D-050/00
B21D-053/24
F16B-037/00
F16B-037/02
출원번호
US-0851809
(2013-03-27)
등록번호
US-9346593
(2016-05-24)
발명자
/ 주소
Dang, Nguyen Thai
출원인 / 주소
Oldcastle Precast, Inc.
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
2인용 특허 :
87
초록▼
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
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.
대표청구항▼
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 as
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 portion plate, the first lower portion plate and the second lower portion plate each having a leading edge with an arcuate portion configured to matingly engage an external thread of the bolt; anda sidewall portion, the sidewall portion comprising a first sidewall opposed by, and spaced apart from, a second sidewall, wherein the first sidewall integrally connects the upper portion and the first lower portion plate, and wherein the second sidewall integrally connects the upper portion and the second lower portion plate. 2. The tamper resistant closure mechanism of claim 1, wherein the arcuate portion of the leading edge of the first lower portion plate and of the second lower portion plate each comprise a chamfer configured to engage the external thread of the bolt. 3. The tamper resistant closure mechanism of claim 1, wherein the first lower portion plate and the second lower portion plate are contoured to correspond to a helix of the external thread of the bolt. 4. The tamper resistant closure mechanism of claim 1, wherein the lower portion further comprises at least one foot to provide stability to the nut when the nut is oriented parallel to a horizontal plane. 5. The tamper resistant closure mechanism of claim 1, wherein the nut comprises a square shape that is interchangeable with a corresponding square nut. 6. The tamper resistant closure mechanism of claim 1, wherein the upper portion further comprises a first bridge, a second bridge, and a first upper portion plate positioned between the first bridge and the second bridge, wherein the first bridge and the second bridge integrally connect the first sidewall and the second sidewall, and wherein the first upper portion plate is oriented downwardly and configured to engage the external thread of the bolt. 7. The tamper resistant closure mechanism of claim 6, wherein the upper portion further comprises a second upper portion plate positioned between the first bridge and the second bridge, wherein the second upper portion plate is oriented downwardly and opposes the first upper portion plate, and wherein the first upper portion plate and the second upper portion plate each having a leading edge with an arcuate portion configured to matingly engage the external thread of the bolt. 8. A method of manufacturing a double-thread speed nut, the method comprising: obtaining a substantially planar strip of material having a first end, a second end, a first side, and a second side;forming a first aperture near the center of the strip, the first aperture associated with an area of the strip defining an upper portion of the double-thread speed nut;forming a first plate near the first end of the strip, wherein the first plate has a leading edge with an arcuate portion;forming a second plate near the second end of the strip, wherein the second plate has a leading edge with an arcuate portion, and wherein the arcuate portion of the first plate is directed away from the arcuate portion of the second plate;folding the first end and the second end of the strip relative to the upper portion of the double-thread speed nut to define a first sidewall and a second sidewall of the double-thread speed nut; andfolding the first end and the second end of the strip relative to the first sidewall and the second sidewall of the double-thread speed nut to define a lower portion of the double-thread speed nut, wherein the arcuate portion of the first plate opposes the arcuate portion of the second plate to define a second aperture that is axially aligned with the first aperture. 9. The method of claim 8, further comprising forming a chamfer in the arcuate portion of the leading edge of the first plate and the second plate. 10. The method of claim 8, further comprising forming at least one foot adjacent to the first plate or the second plate. 11. The method of claim 8, further comprising bending the first plate and the second plate so that the arcuate portion of the first plate and of the second plate correspond to a helix of an external thread of a bolt. 12. The method of claim 8, further comprising forming a third plate and a fourth plate near the center of the strip, wherein the third plate and the fourth plate each have a leading edge with an arcuate portion, wherein the arcuate portion of the third plate opposes the arcuate portion of the fourth plate to define the first aperture, and wherein the first plate and the second plate are associated with the upper portion of the double-thread speed nut. 13. The method of claim 8, further comprising bending the first plate and the third plate downwardly at a first angle relative to a horizontal plane and bending the second plate and the fourth plate downwardly at a second angle relative to the horizontal plane, wherein the first angle and the second angle are different.
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이 특허에 인용된 특허 (87)
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