US5397048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle for applying viscous fluid
Assignee: Pioneer Corp
•
Filing: 1993-09-15
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Granted: 1995-03-14
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Expires: 2013-09-15
Abstract
Abstract A needle has an inner passage for applying viscous fluid. A filter having a plurality of minute perforations is provided in the needle, whereby the fluid enters the inner passage through the filter.
Inventors
- 👤 Masahiko Konno
- 👤 Yasuhisa Miyata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:14
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A needle device comprising a holder having a hollow space therein, a needle having an inner passage for applying viscous fluid attached to said holder and communicating with said hollow space, and a filter having a plurality of minute perforations provided in the needle holder upstream of the inner passage so that the fluid enters the inner passage through the filter, each of the perforations of the filter, having a diameter smaller than a solid included in the fluid, said hollow space having a larger cross sectional area than said inner passage, an agitating space being defined in said hollow space downstream of said filter and upstream of said inner passage.
Claim 2
Dependent Claim
111 words
A needle device comprising a holder having a hollow space therein, a needle having an inner passage for applying viscous fluid attached to said holder and communicating with said hollow space, and a filter having a plurality of minute perforations provided in the needle holder upstream of the inner passage so that the fluid enters the inner passage through the filter, each of the perforations of the filter, having a diameter smaller than a solid included in the fluid, said hollow space having a larger cross sectional area than said inner passage, an agitating space being defined in said hollow space downstream of said filter and upstream of said inner passage.
References Cited (Backward Citations)
US3757779A
Cited
US4061143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-13 | 1998-09-12 | 1999-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-13 | 2002-09-12 | 2003-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-13 | 2006-09-12 | 2007-03-14 | $7700.00 | Window Closed / Lapsed |