US3645333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pitless well adapters
Assignee: Individual
•
Filing: 1970-09-23
•
Granted: 1972-02-29
•
Expires: 1990-09-23
Abstract
Abstract A well casing has a boxlike adapter extension projecting laterally therefrom and there is a tubular nipple extending through an upright wall of the box above the bottom thereof, the nipple carrying an enlarged stainless steel bearing face within the wall of the adapter box which bearing face is provided with integral guideways at opposite sides thereof for receiving a wedge block projecting from a bronze T-fitting, said T-fitting and wedge block having a lateral passageway registrable with the opening of the nipple. The guideways are open at the bottom to allow the lower edge of the wedge block to project a short distance therethrough so that the ends of said lower edge contact the arcuate bottom wall of the adapter box when the wedge block is in operative position with respect to the nipple. Thus the load is carried by the bottom wall of the adapter box rather than by the guideway of the nipple. The nipple and guideway are of stainless steel to prevent electrolytic action and the wedge and guideways provide for a fast sealing engagement at the end of the insertion.
Inventors
- 👤 Herbert W Maess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
E; E03; E03B; E03B5/00; E03B5/04; E03B5/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
232 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flowpipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on The fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the bottom of the box being laterally curved so that only the lower edge corners of the wedge block are in supporting engagement with said bottom wall.
Claim 2
Dependent Claim
232 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flowpipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on The fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the bottom of the box being laterally curved so that only the lower edge corners of the wedge block are in supporting engagement with said bottom wall.
Claim 3
Dependent Claim
231 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the bearing surface which is supported in the box being a stainless steel stamping having side flanges bent to provide the guideway for the wedge block.
Claim 4
Dependent Claim
231 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the bearing surface which is supported in the box being a stainless steel stamping having side flanges bent to provide the guideway for the wedge block.
Claim 5
Dependent Claim
271 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the guideway means including oppositely disposed, upright elements spaced inwardly from the bearing surface which is supported in the box, and having upwardly projecting, inwardly curved extensions, the wedge block having side portions fitting between said guideway elements and the last-mentioned bearing surface, and said upwardly projecting extensions of the guideway elements being adapted to coact with the wedge block during insertion to facilitate insertion movement.
Claim 6
Dependent Claim
271 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in which its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the guideway means including oppositely disposed, upright elements spaced inwardly from the bearing surface which is supported in the box, and having upwardly projecting, inwardly curved extensions, the wedge block having side portions fitting between said guideway elements and the last-mentioned bearing surface, and said upwardly projecting extensions of the guideway elements being adapted to coact with the wedge block during insertion to facilitate insertion movement.
Claim 7
Dependent Claim
272 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in whicH its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the guideway means including oppositely disposed, upright elements spaced inwardly from the bearing surface which is supported in the box, said elements having lower ends which are curved inwardly toward the back wall of the box, the wedge block having lower side portions shaped to coact with said lower and curved portions to accelerate movement of the wedge block toward sealing engagement at the end of insertion.
Claim 8
Dependent Claim
272 words
In a pitless well adapter having a box with a back and a bottom wall, and having a service pipe opening in said back, a bearing surface supported in said box and having an opening in registration with the service pipe opening in said back, a flow-pipe-supporting fitting having a laterally projecting wedge block with a bearing surface, said fitting having a liquid opening through said wedge block which is complementary to the service pipe opening of the box, guideway means in said box positioned to slideably receive said wedge block and to guide it to and from a position in whicH its opening is in registration with said service pipe opening, the improvement comprising having the lower end of said guideway means sufficiently open that the lower edge of the wedge block projects a short distance therethrough into contact with the bottom wall of said box, whereby the latter may support the load on the fitting, the parts being so positioned relative to one another and relative to the bottom of the box that there is supporting engagement between the wedge block and the bottom of the box at the same time that the fitting is in operative registration with the service pipe opening, the guideway means including oppositely disposed, upright elements spaced inwardly from the bearing surface which is supported in the box, said elements having lower ends which are curved inwardly toward the back wall of the box, the wedge block having lower side portions shaped to coact with said lower and curved portions to accelerate movement of the wedge block toward sealing engagement at the end of insertion.
Claim 9
Dependent Claim
60 words
A pitless well adapter as claimed in claim 3 in which the upright guideway elements have lower ends which are curved inwardly toward the back wall of the box, the wedge block having lower side portions shaped to coact with said lower end curved portions to accelerate movement of the wedge block toward sealing engagement at the end of insertion.
Claim 10
Dependent Claim
26 words
A pitless well adapter as claimed in claim 3 in which the side portions of the wedge block have opposite edge grooves receiving said guiding elements.
Claim 11
Dependent Claim
50 words
A pitless well adapter as claimed in claim 3 in which the opposite portions of the wedge block which slideably fit within the guideway elements have upper end portions of increased thickness to coact with said guideway elements in producing a fast engagement at the end of the insertion stroke.
Claim 12
Dependent Claim
26 words
A pitless well adapter as claimed in claim 7 in which said upper portions of increased thickness are connected by angular shoulders with the portions therebelow.
Claim 13
Dependent Claim
36 words
A pitless well adapter as claimed in claim 5 in which said side portions of the wedge block have lower ends of decreased thickness for coaction with the inwardly bent lower portions of the guiding elements.
Claim 14
Dependent Claim
20 words
A pitless well adapter as claimed in claim 2 in which the fitting and wedge block are formed of bronze.
References Cited (Backward Citations)
US2946385A
Cited
US2960166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |