Vented gas riser apparatus

Details Vented gas riser apparatus Vented gas riser apparatus

2008-03-19

2010-06-22

Hewitt, James M (Department: 3679)

Pipe joints or couplings

With casing, lining or protector

C285S013000, C285S123300, C285S148130, C285S236000, C285S256000, C285S924000, C405S157000, C405S129850, C137S312000, C381S105000, C381S114000

Reexamination Certificate

active

07740284

ABSTRACT:
A vented gas riser for use in a system for conducting pressurized gas through a gas carrier pipe from a gas supply source line located below ground level to a delivery point disposed above ground is provided. A fluid tight gas riser protective casing is disposed around said carrier pipe and creates a gas escape passageway in an elongate annular space between the carrier pipe and the casing. A containment chamber is disposed below ground level which creates a confined space which has, as its only egress, a fluid connection to a gas escape passageway. Any gas which leaks into the containment chamber is directed into the gas escape passageway. A riser transition head, which includes at least one vent passageway, provides a fluid connection with said gas escape passageway and with the atmosphere such that any gas which leaks into said containment chamber is directed through the gas escape passageway and through the at least one vent and into the atmosphere.

REFERENCES:
patent: 3869150 (1975-03-01), Brown
patent: 3987820 (1976-10-01), Alewitz
patent: 4132083 (1979-01-01), McGrath
patent: 4279435 (1981-07-01), Alewitz
patent: 4284297 (1981-08-01), Godkin
patent: 4449853 (1984-05-01), Mennella et al.
patent: 4482170 (1984-11-01), Jacobson et al.
patent: 4932810 (1990-06-01), Austin
patent: 4971477 (1990-11-01), Webb et al.
patent: 5326137 (1994-07-01), Lorenz et al.
patent: 5366260 (1994-11-01), Wartluft
patent: 5590914 (1997-01-01), Platner et al.
patent: 5692785 (1997-12-01), Wartluft et al.
patent: 5934711 (1999-08-01), Gady
patent: 6039066 (2000-03-01), Selby
patent: 7125052 (2006-10-01), Robison et al.
patent: 2003/0214133 (2003-11-01), Robison et al.

Affiliated with

Also associated with

Rating

Vented gas riser apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vented gas riser apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vented gas riser apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4200732