Patent US3105554A successfully refreshed from Google Patents.
US3105554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Down hole tool
Assignee: Texaco Inc
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Filing: 1960-05-26
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Granted: 1963-10-01
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Expires: 1980-05-26
Abstract
No abstract record available.
Inventors
- 👤 Richard H Mccall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
E; E21; E21B; E21B27/00; E21B27/02; E21B41/00; E21B41/02; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A DOWN HOLE TOOL FOR APPLYING A COATING MATERIAL TO THE INTERNAL WALLS OF CASING COMPRISING A CYLINDRICAL BODY ADAPTED TO VERTICAL MOVEMENT IN SAID CASING, MEANS DEFINING A CYLINDER CHAMBER IN SAID BODY FOR CONTAINING SAID COATING MATERIAL, FLUID PASSAGE MEANS TO PERMIT SAID COATING MATERIAL TO BE EJECTED FROM SAID CYLINDER CHAMBER, A SEAL MEANS CARRIED BY A PISTON SLIDABLY AND SEALINGLY MOUNTED IN SAID CYLINDER CHAMBER, THRUST BEARING MEANS ATTACHED TO SAID BODY FOR ROTATABLY SUPPORTING A ROTATABLE SHAFT HELD AGAINST AXIAL MOVEMENT AND EXTENDING LONGITUDINALLY IN SAID CYLINDRICAL BODY, A NON-ROTAABLE NUT MEMBER RIGIDLY CONNECTED TO SAID PISTON AND THREADEDLY ENGAGED WITH SAID ROTATABLE SHAFT, MEANS FOR SUPPORTING SAID NUT MEMBER FOR LONGITUDINAL MOVEMENT ONLY WITHIN SAID CYLINDRICAL BODY, AND ACTUATING MEANS FOR ROTATING SAID SHAFT DURING UPWARD MOVEMENT OF SAID TOOL IN SAID CASING IN SUCH DIRECTION THAT SAID PISTON MOVES DOWNWARDLY IN SAID CYLINDER CHAMBER TO EJECT THEREFROM SAID COATING MATERIAL.
Claim 2
Dependent Claim
157 words
A DOWN HOLE TOOL FOR APPLYING A COATING MATERIAL TO THE INTERNAL WALLS OF CASING COMPRISING A CYLINDRICAL BODY ADAPTED TO VERTICAL MOVEMENT IN SAID CASING, MEANS DEFINING A CYLINDER CHAMBER IN SAID BODY FOR CONTAINING SAID COATING MATERIAL, FLUID PASSAGE MEANS TO PERMIT SAID COATING MATERIAL TO BE EJECTED FROM SAID CYLINDER CHAMBER, A SEAL MEANS CARRIED BY A PISTON SLIDABLY AND SEALINGLY MOUNTED IN SAID CYLINDER CHAMBER, THRUST BEARING MEANS ATTACHED TO SAID BODY FOR ROTATABLY SUPPORTING A ROTATABLE SHAFT HELD AGAINST AXIAL MOVEMENT AND EXTENDING LONGITUDINALLY IN SAID CYLINDRICAL BODY, A NON-ROTAABLE NUT MEMBER RIGIDLY CONNECTED TO SAID PISTON AND THREADEDLY ENGAGED WITH SAID ROTATABLE SHAFT, MEANS FOR SUPPORTING SAID NUT MEMBER FOR LONGITUDINAL MOVEMENT ONLY WITHIN SAID CYLINDRICAL BODY, AND ACTUATING MEANS FOR ROTATING SAID SHAFT DURING UPWARD MOVEMENT OF SAID TOOL IN SAID CASING IN SUCH DIRECTION THAT SAID PISTON MOVES DOWNWARDLY IN SAID CYLINDER CHAMBER TO EJECT THEREFROM SAID COATING MATERIAL.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |