US4297055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of installing underground pipe
Assignee: Individual
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Filing: 1980-02-08
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Granted: 1981-10-27
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Expires: 2000-02-08
Abstract
Abstract A process of installing a pipe system under an existing building constructed upon a concrete slab or other foundation not permitting access beneath the ground floor, for the purpose of periodic introduction of insecticide to control or eradicate subterranean termites or other such pests, comprising forming a substantially horizontal hole or accessway beneath the building slab or foundation, inserting a pipe through the formed hole, the pipe being made of a plastic or flexible material containing apertures for discharging the insecticide, the pipe being inserted in the hole or accessway by capping one end of the pipe and inserting a solid push rod into the pipe until the push rod contacts the capped end whereby the pipe can be pushed through the hole or accessway without lateral or vertical displacement.
Inventors
- 👤 Richard C. Peacock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/24; A01M1/245; E; E04; E04B; E04B1/00; E04B1/62; E04B1/72; A01M2200/00; A01M2200/01; A01M2200/011
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
A method of installing underground pipe comprising forming a horizontal or lateral hole underneath the ground surface by securing a jacking mechanism to one end of a hollow casing, securing a tapered power head at the opposite end of said casing and moving said jacking mechanism to move said power head and associated casing through the ground, providing an open ended flexible tubing, said tubing including an end cap covering one end thereof, inserting a push rod inside said tubing and in contact with said end cap, and after said power head and associated casing have been moved the desired distance pushing said tubing through said hollow casing by use of force applied to said push rod, said push rod contacting said end cap and pushing the tube through said casing without lateral or vertical displacement of said flexible tubing, and removing said push rod and said casing from said power head after said end cap reaches said power head.
Claim 2
Independent Claim
160 words
A method of installing underground pipe comprising forming a horizontal or lateral hole underneath the ground surface by securing a jacking mechanism to one end of a hollow casing, securing a tapered power head at the opposite end of said casing and moving said jacking mechanism to move said power head and associated casing through the ground, providing an open ended flexible tubing, said tubing including an end cap covering one end thereof, inserting a push rod inside said tubing and in contact with said end cap, and after said power head and associated casing have been moved the desired distance pushing said tubing through said hollow casing by use of force applied to said push rod, said push rod contacting said end cap and pushing the tube through said casing without lateral or vertical displacement of said flexible tubing, and removing said push rod and said casing from said power head after said end cap reaches said power head.
Claim 3
Dependent Claim
50 words
The method of claim 1 comprising extending the length of said hole by removing said jacking mechanism from said end of said casing, adding a second section of hollow casing to said casing, reattaching said jacking mechanism to the end of said second casing and then reoperating said jacket mechanism.
Claim 4
Dependent Claim
27 words
The method of claim 2 wherein said push rod is in separate sections joined together by a coupling mechanism to extend about the length of said casing.
Claim 5
Dependent Claim
53 words
The method of claim 1 wherein said hole is formed under an existing building constructed upon a concrete slab or other foundation not permitting access beneath the ground floor, said flexible tubing comprises a plurality of radial slits whereby fluid pumped through said tubing will pass through said slits into the adjacent ground.
Claim 6
Dependent Claim
32 words
The method of claim 4 comprising securing an end of said tubing opposite said power head to a pumping mechanism and pumping insecticide through said tubing and out through said radial apertures.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |