Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe
Patent
1989-06-14
1991-03-05
Reese, Randolph A.
Pipe joints or couplings
Flexible joint, rigid members
Concrete, clay, or masonry pipe
285345, 249 95, 249184, 2642711, 264275, B28B 728, F16L 4900
Patent
active
049972154
ABSTRACT:
An adaptor (10) having a concrete cylindrical body (12) with an axial bore (14) having a directional twin seal (24) cast within the body (12) to project into the axial bore (14). The bore (14) has a maximum diameter at each end (16, 18) of the body (12) that decreases to a minimum diameter at the center of the bore (14) where the seal (24) is positioned. The method of constructing the adaptor (10) includes the steps of placing a lower form (44) on a support member (40); placing a seal (54) on the lower form (44); placing an upper form (46) on the seal (54); and placing an outer cylinder (42) around the upper and lower forms (44,46) to create a space (58) into which liquid concrete is poured.
REFERENCES:
patent: 776612 (1904-12-01), Peck
patent: 1623539 (1927-04-01), Horten
patent: 1664941 (1928-04-01), Perkins
patent: 2871031 (1959-01-01), Altemus et al.
patent: 3727876 (1973-04-01), Keyser
patent: 3758066 (1973-09-01), Skinner et al.
patent: 3759285 (1973-09-01), Yoakum
patent: 3787061 (1974-01-01), Yoakum
patent: 3796406 (1974-03-01), Ditcher
patent: 3815214 (1974-06-01), Kyle, Sr.
patent: 4073048 (1978-02-01), Ditcher
patent: 4103901 (1978-08-01), Ditcher
patent: 4159829 (1979-07-01), Ditcher
patent: 4598915 (1986-07-01), Gilbert
patent: 4650149 (1987-03-01), Poulette et al.
patent: 4702645 (1987-10-01), Skinner et al.
patent: 4854543 (1989-08-01), Daigle et al.
CertainTeed, "Price List".
Reese Randolph A.
Thompson Jeffrey L.
LandOfFree
Concrete pipe adaptor and method of making does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concrete pipe adaptor and method of making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concrete pipe adaptor and method of making will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-491990