Patent US4798502A successfully refreshed from Google Patents.
US4798502A
Expired / Lapsed
US
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Corner grouting nozzle
Assignee: LILY CORP
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Filing: 1987-08-21
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Granted: 1989-01-17
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Expires: 2007-08-21
Abstract
Abstract A nozzle utilized to grout or fill cold joints and cracks formed in or occuring at structural corners. The nozzle includes a tip which is defined by converging planar surfaces about an axial opening. The nozzle tip defining surfaces include a relatively large area which is separated from the nozzle axial opening for wall contact to permit the nozzle to be secured by an adhesive or bonding agent to the corner walls before injection of the grouting material or sealant.
Inventors
- 👤 John F. Trout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:15
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/02; E04G23/0203; E04F; E04F21/00; E04F21/165; E04F21/1655; E04G23/0211; Y; Y10; Y10S; Y10S425/00; Y10S425/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A nozzle for injecting sealant into a crack at a corner of two adjoining walls, said nozzle comprising a shank having proximal and distal ends, said shank having an axial bore therethrough communicating with its said proximal and distal ends, said nozzle distal end defining a head having a collar and an integral protruding tip, said tip and at least a portion of said collar being formed by substantially V-shaped converging surfaces adapted for a complemental fit into said corner adjacent said crack, said converging surfaces at said tip forming a thin walled means for minimizing blow-back of said nozzle upon injection of said sealant into said crack, said converging surfaces at said collar forming oppositely disposed contact means for accommodating an adhesive to secure said nozzle to said adjoining walls at said corner with said tip positioned over said crack.
Claim 2
Dependent Claim
141 words
A nozzle for injecting sealant into a crack at a corner of two adjoining walls, said nozzle comprising a shank having proximal and distal ends, said shank having an axial bore therethrough communicating with its said proximal and distal ends, said nozzle distal end defining a head having a collar and an integral protruding tip, said tip and at least a portion of said collar being formed by substantially V-shaped converging surfaces adapted for a complemental fit into said corner adjacent said crack, said converging surfaces at said tip forming a thin walled means for minimizing blow-back of said nozzle upon injection of said sealant into said crack, said converging surfaces at said collar forming oppositely disposed contact means for accommodating an adhesive to secure said nozzle to said adjoining walls at said corner with said tip positioned over said crack.
References Cited (Backward Citations)
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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) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |