Patent US5033952A successfully refreshed from Google Patents.
US5033952A
Expired / Lapsed
US
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Injection adapter
Assignee: Fischerwerke Artur Fischer GmbH and Co KG
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Filing: 1990-02-09
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Granted: 1991-07-23
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Expires: 2010-02-09
Abstract
Abstract An injection adapter for introducing a flowable compound into a drilled hole in masonry has a plastic tubular part having an inner thread in the upper end thereof for engaging a threaded end of a bolt of a fixing element anchored in the drilled hole which threaded end projects from the drilled hole. The injection adapter has a lower tapering end having a front annular end face for engaging an adjacent annular end face of a sleeve of the fixing element.
Inventors
- 👤 Willi Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:36
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/008; F16B13/00; F16B13/04; F16B13/08; F16B13/0858; F16B13/14; F16B13/141; F16B2013/007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
An injection adapter for introducing a flowable compound into a hole drilled in masonry and in which a fixing element comprising a bolt having a threaded end projecting above a mouth of the drilled hole, and an expansible sleeve, are anchored, said injection adapter comprising a plastic tubular part having an upper end provided with an internal thread to be screwed onto the threaded end of the bolt of the fixing element, an end wall formed at said upper end, a lower tapering end having a front annular end face for engaging an adjacent annular end face of the sleeve of the fixing element; a feed nipple received in said wall, and at least one longitudinal groove in a region of said internal thread.
Claim 2
Dependent Claim
124 words
An injection adapter for introducing a flowable compound into a hole drilled in masonry and in which a fixing element comprising a bolt having a threaded end projecting above a mouth of the drilled hole, and an expansible sleeve, are anchored, said injection adapter comprising a plastic tubular part having an upper end provided with an internal thread to be screwed onto the threaded end of the bolt of the fixing element, an end wall formed at said upper end, a lower tapering end having a front annular end face for engaging an adjacent annular end face of the sleeve of the fixing element; a feed nipple received in said wall, and at least one longitudinal groove in a region of said internal thread.
Claim 3
Dependent Claim
39 words
An injection adapter according to claim 1, wherein said injection adapter has a longitudinal axis and a flange part extending transverse to the longitudinal axis and defining said wall, said feed nipple being arranged coaxially with said longitudinal axis.
Claim 4
Dependent Claim
28 words
An injection adapter according to claim 1, wherein said injection adapter has an internal space in a region of said tapering end which widens in an upward direction.
References Cited (Backward Citations)
US2095187A
Cited
US3572956A
Cited
US4382720A
Cited
US4512123A
Cited
DE3426088A1
Cited
US4569808A
Cited
DE3538995A1
Cited
US4763396A
Cited
US4905430A
Cited
US4814185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |