Patent US3782636A successfully refreshed from Google Patents.
US3782636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipelining apparatus
Assignee: SPIN CO
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Filing: 1972-10-02
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Granted: 1974-01-01
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Expires: 1992-10-02
Abstract
Abstract An apparatus is provided for coating the interior walls of a pipeline with a lining of cement mortar in which an annular rotating dispersion head is used for spraying the mortar against the pipe walls. A shaft formed with fluted slots is coaxially positioned with respect to the annular dispersion head in order to obtain a uniform dispersion of the mortar.
Inventors
- 👤 F Donnelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:03
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/06; B; B05; B05B; B05B13/00; B05B13/06; B05B13/0627; B05B13/0636; B05B3/00; B05B3/02; B05B3/10; B05B3/1007; B05B3/1021; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
Apparatus for coating the interior walls of a pipeline with a lining of cement mortar comprising a motor drive, a stationary shaft formed with an internal central housing for receiving a continuous flow of said mortar and directing said flow in a forward direction, said shaft exteriorly mounted on said motor drive, a mortar dispersing head defining an annular chamber journaled on said stationary shaft and operatively connected to said drive motor for rotating said mortar dispersing head, said stationary shaft having exterior slots such that said central housing is in flow communication with said annular chamber, a solid shaft mounted on said mortar dispersing head and positioned in said central housing, and said solid shaft formed with a pair of fluted slots and having a pointed end configuration positioned in opposing relation to said forward direction of said flow, such that said flow of mortar is dispersed and passed through said exterior slots.
Claim 2
Dependent Claim
154 words
Apparatus for coating the interior walls of a pipeline with a lining of cement mortar comprising a motor drive, a stationary shaft formed with an internal central housing for receiving a continuous flow of said mortar and directing said flow in a forward direction, said shaft exteriorly mounted on said motor drive, a mortar dispersing head defining an annular chamber journaled on said stationary shaft and operatively connected to said drive motor for rotating said mortar dispersing head, said stationary shaft having exterior slots such that said central housing is in flow communication with said annular chamber, a solid shaft mounted on said mortar dispersing head and positioned in said central housing, and said solid shaft formed with a pair of fluted slots and having a pointed end configuration positioned in opposing relation to said forward direction of said flow, such that said flow of mortar is dispersed and passed through said exterior slots.
Claim 3
Dependent Claim
24 words
An apparatus for coating the interior walls of a pipeline according to claim 1, in which said slots are formed with a helical configuration.
Claim 4
Dependent Claim
181 words
Apparatus for coating the interior walls of a pipeline with a lining of cement mortar comprising an alternating current motor drive formed with an annular configuration to define a central internal opening, a stationary shaft secured to said motor drive and positioned in said internal opening, said stationary shaft formed with an internal central chamber having exterior slots for receiving a continuous flow of mortar, a hollow drive shaft journaled on said stationary shaft and operatively connected to said motor drive for rotation, a mortar dispersing head formed with an annular chamber having outer mortar dispersion slots, said mortar dispersing head journaled on said stationary shaft and keyed to said drive shaft for rotation, a solid shaft mounted in said internal central chamber in opposing relation to said flow of mortar, and said solid shaft formed with a pair of fluted slots whereby the flow of said mortar is conveyed in said internal central chamber against said solid shaft in contact with said fluted slots and passed through said exterior slots into said annular chamber and out through said dispersion slots.
Claim 5
Dependent Claim
181 words
Apparatus for coating the interior walls of a pipeline with a lining of cement mortar comprising an alternating current motor drive formed with an annular configuration to define a central internal opening, a stationary shaft secured to said motor drive and positioned in said internal opening, said stationary shaft formed with an internal central chamber having exterior slots for receiving a continuous flow of mortar, a hollow drive shaft journaled on said stationary shaft and operatively connected to said motor drive for rotation, a mortar dispersing head formed with an annular chamber having outer mortar dispersion slots, said mortar dispersing head journaled on said stationary shaft and keyed to said drive shaft for rotation, a solid shaft mounted in said internal central chamber in opposing relation to said flow of mortar, and said solid shaft formed with a pair of fluted slots whereby the flow of said mortar is conveyed in said internal central chamber against said solid shaft in contact with said fluted slots and passed through said exterior slots into said annular chamber and out through said dispersion slots.
Claim 6
Dependent Claim
24 words
An apparatus for coating the interior walls of a pipeline according to claim 3, in which said slots are formed with a helical configuration.
Claim 7
Dependent Claim
65 words
Apparatus for coating the interior walls of a pipeline according to claim 3 in which the end of said auger bit opposite said pointed end configuration is integrally formed with a reduced diameter stub section, and said mortar dispersing head includes an end flange having a recess opening sized to receive said stub shaft section for mounting said auger bit in said internal central chamber.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |