Containing fluid leaks on additive pumps
A sealed connection device configured to connect a pump head with a pump on an additive pump. The sealed connection device may comprise an adapter and a sealing collar that inserts into the adapter. The sealing collar may comprise a body with a bore forming open ends, a shoulder disposed between the open ends, an annular detent adjacent the shoulder, annular grooves, one being disposed on the shoulder two others found on either side of the shoulder, and o-rings disposed in the annular grooves. The pump may couple with a first side of the adapter, the pump comprising a shaft that inserts in the bore of the sealing collar. The pump head may insert into a second side of the adapter so as to contact one of o-rings on the sealing collar.
1. An apparatus for an additive pump, comprising:
an annular body with an outer surface having a distal section and a proximal section with a diameter that is smaller than the distal section and with threads for engaging with an additive pump, the annular body having a first through-bore forming a landing surface; and
an elongate cylindrical body insertable into the first through-bore of the annular body, the elongate cylindrical body having a second through-bore forming two open ends, the elongate cylindrical body having a shoulder between the two open ends, an annular detent spaced longitudinally apart from the shoulder, and annular grooves, one found on the shoulder and two others found on either side of the shoulder and spaced longitudinally apart from the shoulder by an amount that is greater than longitudinal spacing of the annular detent from the shoulder,
wherein a part of the elongate cylindrical body with one of the annular grooves extends outside of the distal section with the elongate cylindrical body in contact with the landing surface.
2. The apparatus of claim 1 , wherein the landing surface resides in the proximal section.
3. The apparatus of claim 1 , further comprising:
o-rings disposed in the annular grooves.
4. The apparatus of claim 1 , further comprising:
a first o-ring disposed in the annular groove on the part of the elongate cylindrical body outside of the distal section.
5. The apparatus of claim 1 , further comprising:
radial seals disposed in the elongate cylindrical body at the open ends.
6. The apparatus of claim 1 , wherein the elongate cylindrical body comprises apertures disposed in the annular detent and that extend radially to the through-bore.
7. The apparatus of claim 1 , wherein the through-bore of the annular body has threads disposed in the distal section.
8. The apparatus of claim 1 , wherein the annular body comprises apertures in the outer surface that extend radially to the first through-bore and align with the annular detent on the elongate cylindrical body with the elongate cylindrical body in contact with the landing surface.