Patent US3703790A successfully refreshed from Google Patents.
US3703790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accessory for adhesively fixing and bonding fastening elements in fixing holes
Assignee: Max Langensiepen KG
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Filing: 1971-01-19
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Granted: 1972-11-28
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Expires: 1991-01-19
Abstract
Abstract An accessory for adhesively fixing and bonding fastening elements in fixing holes, particularly in soft building materials, by the destruction inside a fixing hole of a cartridge containing an adhesive, preferably the two components of a twocomponent adhesive, and distributing the adhesive after its release. The accessory has the form of an insertion comprising a protective sleeve accommodating an adhesive-filled cartridge. The protective sleeve has an external diameter adapted to fit into a fixing hole and an internal diameter to fit around a fastening element that is to be secured in the fixing hole. The length of the protective sleeve corresponds to the length of the fastening element and its peripheral surface is provided with holes for the passage therethrough of the adhesive after its release. The external end of the protective sleeve is open.
Inventors
- 👤 Heinz Otto Mattes
- 👤 Friedrich Flesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:50
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/14; F16B13/141; F16B13/143
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
194 words
An accessory for adhesively fixing and bonding fastening elements in fixing holes, particularly in soft building materials, by the destructive inside a fixing hole of a cartridge containing an adhesive, preferably the two components of a two component adhesvie, and distributing the adhesive after its release, said accessory comprising a protective sleeve accommodating an adhesive-filled cartridge and having an external diameter adapted to fit into a fixing hole, and an internal diameter to fit around a fastening element and a length corresponding to that of the latter, said sleeve comprising a pair of substantially semi-circular strip portions facing each other and being integrally connected to each other at one end so that said sleeve is substantially closed at said one end and open at the other end thereof, said one end being the inner end of said sleeve when the latter is inserted into a fixing hole, said strip portions being formed with holes for the passage therethrough of the adhesive after its release; and including a load distributing element connecting said sleeve portions of said sleeve in the region of said open end and radially projecting beyond the outer surface of said sleeve.
Claim 2
Dependent Claim
194 words
An accessory for adhesively fixing and bonding fastening elements in fixing holes, particularly in soft building materials, by the destructive inside a fixing hole of a cartridge containing an adhesive, preferably the two components of a two component adhesvie, and distributing the adhesive after its release, said accessory comprising a protective sleeve accommodating an adhesive-filled cartridge and having an external diameter adapted to fit into a fixing hole, and an internal diameter to fit around a fastening element and a length corresponding to that of the latter, said sleeve comprising a pair of substantially semi-circular strip portions facing each other and being integrally connected to each other at one end so that said sleeve is substantially closed at said one end and open at the other end thereof, said one end being the inner end of said sleeve when the latter is inserted into a fixing hole, said strip portions being formed with holes for the passage therethrough of the adhesive after its release; and including a load distributing element connecting said sleeve portions of said sleeve in the region of said open end and radially projecting beyond the outer surface of said sleeve.
Claim 3
Dependent Claim
35 words
An accessory according to claim 1, wherein said holes in said strip portions are substantially uniformly distributed at least in the zone where a bond between said fastening element and the building material is intended.
Claim 4
Dependent Claim
40 words
An accessory according to claim 1, wherein said load distributing element comprises a supporting wing having a pair of radially projecting fins and a troughshaped portion integrally connecting said fins and in part encompassing said other end of said sleeve.
Claim 5
Dependent Claim
30 words
An accessory according to claim 3, wherein said strip portions are connected to each other in the region of said other end by said trough-shaped portion of said supporting wing.
Claim 6
Dependent Claim
35 words
An accessory according to claim 1, wherein the protective sleeve has an external contour that is a suitable fit in the fixing hole for the sleeve to be lightly wedged inside the hole when inserted.
Claim 7
Dependent Claim
21 words
An accessory according to claim 3, wherein the supporting wing is provided with openings for the passage therethrough of the adhesive.
Claim 8
Dependent Claim
27 words
An accessory according to claim 1, wherein the insertion is formed with at least one abutment preventing the insertion from penetrating too deeply into the fixing hole.
References Cited (Backward Citations)
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US2849866A
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US2889614A
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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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |