Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
Reexamination Certificate
2005-03-15
2005-03-15
Bochna, David (Department: 3679)
Pipe joints or couplings
Flexible joint, rigid members
Resilient sleeve type
C285S230000
Reexamination Certificate
active
06866301
ABSTRACT:
The expandable band is used to secure a sealing element within a generally cylindrical structure, such as a pipe or manhole, or other round hole. The expandable band includes a band body having a first band end portion and a second band end portion. A plurality of slots are disposed in the first band end portion, and a locking member extends from the second band end portion. The locking member is an integral element of the second band end portion and includes a tab for extending through the second band end portion and into one of the plurality of slots to lock the expandable band at the desired diameter. The locking member may also include at least one rib or protrusion. When the band is expanded, the tab is disengaged from the slots and slides over the slots, allowing the first and second band end portions to move relative to one another. At the desired diameter, the tab engages one of the slots to lock the band at the desired diameter. In practice, the sealing member provides a resilient backing against the locking member thus securing the expandable band and providing the desired seal.
REFERENCES:
patent: 3432188 (1969-03-01), Turner
patent: 3490794 (1970-01-01), Swanson
patent: 3516446 (1970-06-01), O'Hargan et al.
patent: 3700265 (1972-10-01), Dufour et al.
patent: 3813116 (1974-05-01), Horsley
patent: 3825286 (1974-07-01), Henry, III
patent: 3840053 (1974-10-01), Sluga
patent: 3899183 (1975-08-01), Wild et al.
patent: 3933377 (1976-01-01), Arrowood
patent: 3958313 (1976-05-01), Rossborough
patent: 3960395 (1976-06-01), Cirule et al.
patent: 4059293 (1977-11-01), Sipler
patent: 4107454 (1978-08-01), Jakobsen
patent: 4215868 (1980-08-01), Skinner et al.
patent: 4303103 (1981-12-01), Marks et al.
patent: 4305679 (1981-12-01), Modi
patent: 4346922 (1982-08-01), Ohtsuga et al.
patent: 4449715 (1984-05-01), Gagas
patent: 4469467 (1984-09-01), Odill et al.
patent: 4475845 (1984-10-01), Odill et al.
patent: 4478437 (1984-10-01), Skinner
patent: 4543691 (1985-10-01), Calmettes
patent: 4621941 (1986-11-01), Ditcher et al.
patent: 4667375 (1987-05-01), Enlund
patent: 4705305 (1987-11-01), Ghaly
patent: 4737220 (1988-04-01), Ditcher et al.
patent: 4746127 (1988-05-01), Westhoff et al.
patent: 4890863 (1990-01-01), Westhoff et al.
patent: 4903970 (1990-02-01), Ditcher et al.
patent: 4911380 (1990-03-01), Regipa
patent: 4954004 (1990-09-01), Faber et al.
patent: 5020832 (1991-06-01), Coblentz
patent: 5029907 (1991-07-01), Gundy
patent: 5054794 (1991-10-01), Westhoff et al.
patent: 5150927 (1992-09-01), Skinner
patent: 5209601 (1993-05-01), Odill et al.
patent: 5333360 (1994-08-01), Oetiker
patent: 5360241 (1994-11-01), Gundy
patent: 5431459 (1995-07-01), Gundy
patent: 5496128 (1996-03-01), Odill
patent: 5630255 (1997-05-01), Eliasson
patent: 5738359 (1998-04-01), Gundy
patent: 6152455 (2000-11-01), Brockway et al.
patent: 6584654 (2003-07-01), Schaub
patent: 0021454 (1981-01-01), None
Bochna David
Bourque & Associates
NPC, Inc.
LandOfFree
Expandable band and locking mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expandable band and locking mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable band and locking mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3447124