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United States of America Patent
Stats
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Aug 25, 2015
Grant Date -
N/A
app pub date -
Mar 27, 2012
filing date -
Mar 27, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A loading apparatus features a hollow barrel that can be threaded to one end of the stuffing box of a pump. A plunger having an enlarged piston can axially push the contents of the barrel into the stuffing box. The apparatus can be used to install replacement packing elements, such as seals, into the stuffing box. The barrel and the stuffing box can be coaxially engaged by mating threads. A retrieval apparatus is formed from a body have an internally threaded axial bore at one end and a transverse bore at the other. The retrieval apparatus can be used to recover a pump rod that has been retracted while packing elements are being replaced.
First Claim
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Family
- No Family data available.
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- E21B Class
- 6.40 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 25, 2027 |