Patent US3705646A successfully refreshed from Google Patents.
US3705646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for fixing anchor elements in holes of a support structure
Assignee: Bergwerksverband GmbH
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Filing: 1971-01-05
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Granted: 1972-12-12
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Expires: 1991-01-05
Abstract
Abstract A tubular plastic foil bag is adapted for insertion into a hole provided in a support structure and has an inner side, an outer side, and spaced ends. Clamps or similar means closes the spaced ends and the bag contains a mixture of filler material and a hardenable resin. A closed frangible vial, of glass or the like, accommodates a hardener which will harden the resin when it becomes admixed therewith. The vial extends along the bag and is located either in the interior embedded in the mixture, or is secured to the exterior of the bag. When the cartridge is inserted into a support structure and subsequently the bag is ruptured and the vial is broken, the hardener and the mixture can admix and the resin will harden.
Inventors
- 👤 Alfons Jankowski
- 👤 Fritz Schuermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:53
CPC Classifications
E; E21; E21D; E21D20/00; E21D20/02; E21D20/025; E21D20/026; F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/143; F16B13/145
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A cartridge for fixing anchor elements in holes of a support structure, comprising a frangible vial means breakable into sharp shards upon use of said cartridge and defining when unbroken a first compartment; a closed tubular plastic foil bag surrounding said frangible vial and defining therewith a second compartment, and being formed of a plastic material shreddable upon forcible contact with the sharp shards resulting from breakage of said frangible vial means; hardenable resin accommodated in one of said compartments; and a hardener for hardening said resin upon admixture with the same and being accommodated in the other of said compartments, whereby, when said cartridge is positioned in a hole and an anchoring element is thereupon forcibly driven into such hole, the anchoring element will break said frangible vial into sharp shards which will shred said plastic foil bag as the anchoring element advances in such hole.
Claim 2
Dependent Claim
147 words
A cartridge for fixing anchor elements in holes of a support structure, comprising a frangible vial means breakable into sharp shards upon use of said cartridge and defining when unbroken a first compartment; a closed tubular plastic foil bag surrounding said frangible vial and defining therewith a second compartment, and being formed of a plastic material shreddable upon forcible contact with the sharp shards resulting from breakage of said frangible vial means; hardenable resin accommodated in one of said compartments; and a hardener for hardening said resin upon admixture with the same and being accommodated in the other of said compartments, whereby, when said cartridge is positioned in a hole and an anchoring element is thereupon forcibly driven into such hole, the anchoring element will break said frangible vial into sharp shards which will shred said plastic foil bag as the anchoring element advances in such hole.
Claim 3
Dependent Claim
14 words
A cartridge as defined in claim 1, wherein said vial means consIsts of glass.
Claim 4
Dependent Claim
19 words
A cartridge as defined in claim 1, wherein said vial is at least substantially longitudinally coextensive with said bag.
Claim 5
Dependent Claim
22 words
A cartridge as defined in claim 1, wherein said plastic foil bag has a wall thickness of between 0.02 and 0.1 mm.
Claim 6
Dependent Claim
21 words
A cartridge as defined in claim 1, wherein said vial means has a wall thickness of between 0.2 and 1 mm.
Claim 7
Dependent Claim
25 words
A cartridge as defined in claim 1, wherein said bag has an inner side, and wherein said vial means is fast with said inner side.
Claim 8
Dependent Claim
30 words
A cartridge as defined in claim 1, wherein said mixture is accommodated in said second compartment, and wherein said frangible vial means is embedded in and supported by said mixture.
Claim 9
Dependent Claim
16 words
A cartridge as defined in claim 1, wherein said mixture is accommodated in said second compartment.
Claim 10
Dependent Claim
33 words
A cartridge as defined in claim 1, wherein said mixture is accommodated in said second compartment substantially completely filling the same and imparting shape-retaining characteristics to the same and thereby to said cartridge.
References Cited (Backward Citations)
US3324663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |