Patent US3670696A successfully refreshed from Google Patents.
US3670696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating apparatus for tubular objects
Assignee: Anchor Wate Co
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Filing: 1971-02-22
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Granted: 1972-06-20
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Expires: 1991-02-22
Abstract
Abstract A pair of elastomeric coated drums is arranged so that the longitudinal axis of the lower of the pair of drums is positioned rearwardly, or offset from, the longitudinal axis of the upper of the pair of drums to thereby provide a receiving area on the lower drum for receiving a mixture of aggregate, cement, and water. One of the drums of the pair is mounted so that it may be moved along its support toward and away from the longitudinal axis of the other drum, and it may be adjusted to any desired position, up and down, in spaced relation to the other drum. As the drums are rotated, the mixture deposited on the lower drum will be conveyed between the drums and impelled onto the surface of a tubular member. The angle or direction of the stream discharged from between the drums may be changed by moving and positioning one of the drums relative to the other drum. The desired angle of discharge of the stream depends upon the diameter of the tubular member being coated. The drums are elastomeric coated to provide a more uniform surface for contacting and impelling the mixture from between the drums in a more uniform stream, and the elastomeric coating is wear resistant.
Inventors
- 👤 Anthony W Findley
- 👤 Jesse M Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:23
CPC Classifications
B; B28; B28B; B28B19/00; B28B19/0038; Y; Y10; Y10S; Y10S118/00; Y10S118/11; Y10S118/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
Apparatus for applying a coating of cementitious material to a tubular member comprising: a. means for mixing cement, aggregate, and water and for discharging the mixture from the mixing means; b. a pair of elastomeric coated rotatably mounted drums for receiving the mixture and propelling it therebetween to be discharged on the tubular member; c. said drums having their longitudinal axis offset so that the lower of said pair is rearward of the upper drum to provide a receiving area for receiving the mixture between said pair of drums; d. means for conveying the mixture from the mixer for discharge on the receiving area of the lower of said pair of drums; e. means for rotating said pair of drums to convey the mixture therebetween and propel it onto a tubular member; and f. support means supporting said drums in spaced relation, said support means including means to adjust the position of one of the drums relative to the other drum to adjust the angle of discharge of the mixture from between the drums.
Claim 2
Dependent Claim
174 words
Apparatus for applying a coating of cementitious material to a tubular member comprising: a. means for mixing cement, aggregate, and water and for discharging the mixture from the mixing means; b. a pair of elastomeric coated rotatably mounted drums for receiving the mixture and propelling it therebetween to be discharged on the tubular member; c. said drums having their longitudinal axis offset so that the lower of said pair is rearward of the upper drum to provide a receiving area for receiving the mixture between said pair of drums; d. means for conveying the mixture from the mixer for discharge on the receiving area of the lower of said pair of drums; e. means for rotating said pair of drums to convey the mixture therebetween and propel it onto a tubular member; and f. support means supporting said drums in spaced relation, said support means including means to adjust the position of one of the drums relative to the other drum to adjust the angle of discharge of the mixture from between the drums.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein said conveying means comprises an endless belt and means for moving said endless belt.
Claim 4
Dependent Claim
48 words
The invention of claim 1 wherein said support means for said upper drum includes spaced support arms, means pivotally mounting said arms at a pivot position spaced from said upper drum, and adjustable means for maintaining said upper drum in a predetermined spaced relation to said lower drum.
Claim 5
Dependent Claim
58 words
The invention of claim 1 including shaft means extending along the longitudinal axis of each of said drums and on which said drums are carried, said shafts projecting beyond each of said drums at each end thereof with bearing means supporting said shaft at each end of said drums, and pulley means mounted on each of said shafts.
Claim 6
Dependent Claim
21 words
The invention of claim 4 including motor means with belt means connecting said motor means and pulley means for rotation thereof.
Claim 7
Dependent Claim
51 words
The invention of claim 4 including adjustable means for maintaining said bearing means of at least one of said shafts at any predetermined position along said drum support means whereby the longitudinal axis of said drums may be adjusted toward and away from each other and maintained in a predetermined position.
Claim 8
Dependent Claim
47 words
The invention of claim 1 including means for moving a tubular member along its longitudinal axis while simultaneously rotating the tubular member about its longitudinal axis in spaced relationship to said pair of drums for receiving the mixture impelled therebetween on the surface of the tubular member.
Claim 9
Dependent Claim
28 words
The invention of claim 1 wherein said adjustable means associated with said support means includes means to adjust and maintain the drums in a predetermined vertically spaced relationship.
Claim 10
Dependent Claim
28 words
The invention of claim 1 wherein said adjustable means associated with said support means includes means to adjust and maintain the drums in a predetermined laterally offseT relationship.
Claim 11
Dependent Claim
35 words
The invention of claim 1 wherein said adjustable means associated with said support means includes means to adjust and maintain the drums in a predetermined vertically spaced relationship and in a predetermined laterally offset relationship.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |