US4153156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reinforcing or sealing solid structures or for anchoring bolts therein and cartridges for use in such method
Assignee: 3M Co
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Filing: 1977-08-08
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Granted: 1979-05-08
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Expires: 1997-08-08
Abstract
Abstract A process for reinforcing or sealing solid structures or for anchoring bolts using macrocapsules which contain at least one part of a multi-part curable polymer system and which fracture under pressure to produce flake-like fragments that aid in mixing the components of the multi-part curable polymer system. The macrocapsules can be conveniently made a part of a sealing cartridge for ease of use.
Inventors
- 👤 Ronald W. Seemann
- 👤 Thomas I. Bradshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:09
CPC Classifications
E; E21; E21D; E21D20/00; E21D20/02; E21D20/025; E21D20/026; F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/143; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
122 words
A sealing cartridge for reinforcing or sealing solid structure, anchoring bolts or the like comprising a cylindrical array of pressure fragmentable non-friable macrocapsules in a fixed three dimensional relationship, said cylindrical array having a cross sectional diameter from 5 mm to 10 cm, said macrocapsules (a) containing at least one part of a multi-part curable polymer system which is capable of curing to a hard resin, the major components of said curable resin system being liquid, (b) having a major dimension in the range of 4.75 mm to about 95% of the cross sectional diameter of said cylindrical array and (c) being capable of forming flake-like fragments from the walls of the macrocapsules upon their pressure fragmentation and release of their contents.
Claim 2
Dependent Claim
122 words
A sealing cartridge for reinforcing or sealing solid structure, anchoring bolts or the like comprising a cylindrical array of pressure fragmentable non-friable macrocapsules in a fixed three dimensional relationship, said cylindrical array having a cross sectional diameter from 5 mm to 10 cm, said macrocapsules (a) containing at least one part of a multi-part curable polymer system which is capable of curing to a hard resin, the major components of said curable resin system being liquid, (b) having a major dimension in the range of 4.75 mm to about 95% of the cross sectional diameter of said cylindrical array and (c) being capable of forming flake-like fragments from the walls of the macrocapsules upon their pressure fragmentation and release of their contents.
Claim 3
Dependent Claim
21 words
The cartridge of claim 1 in which the cylindrical array has a cross sectional diameter from 10 mm to 50 mm.
Claim 4
Dependent Claim
22 words
The cartridge of claim 2 in which the macrocapsules have a major dimension in the range of 8 mm to 2 cm.
Claim 5
Dependent Claim
12 words
The cartridge of claim 1 in which the macrocapsules are generally spherical.
Claim 6
Dependent Claim
12 words
The cartridge of claim 1 in which the macrocapsules are generally elongated.
Claim 7
Dependent Claim
37 words
The cartridge of claim 1 in which a portion of the macrocapsules contain one part of said multi-part curable polymer system and another portion of the macrocapsules contain a second part of said multi-part curable polymer system.
Claim 8
Dependent Claim
18 words
The cartridge of claim 1 in which said cylindrical array of macrocapsules is a unitary and cohesive mass.
Claim 9
Dependent Claim
26 words
The cartridge of claim 1 in which said cylindrical array of macrocapsules is confined in a container having a shape in conformity with said cylindrical array.
Claim 10
Dependent Claim
21 words
The cartridge of claim 8 in which said cylindrical array of macrocapsules is confined in a rigid liquid permeable cylindrical container.
Claim 11
Dependent Claim
14 words
The cartridge of claim 8 in which said container is a pressure rupturable container.
Claim 12
Dependent Claim
14 words
The cartridge of claim 8 in which said container is a tubular paper container.
Claim 13
Dependent Claim
39 words
The cartridge of claim 8 in which said cylindrical array of macrocapsules is confined in a liquid impermeable, pressure rupturable cylindrical container and one part of said multi-part curable polymer system therein is a liquid outside of said macrocapsules.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |