US4809502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power equipment
Assignee: Kioritz Corp
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Filing: 1988-04-12
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Granted: 1989-03-07
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Expires: 2008-04-12
Abstract
Abstract A power equipment includes an exhaust pipe member disposed near a muffler, the exhaust pipe member having an exhaust gas passage portion which communicates with the outlet of the muffler and an outlet passage portion whose downstream end has a downstream outlet end communicating with the atmosphere. The power equipment further includes a tubular member for introducing a portion of compressed air flow from a blower, and a gap is formed between an opening formed in the exhaust pipe member and an adjacent end of the tubular member. A guide tube member defines the opening in the interior of the upstream end of the exhaust pipe member.
Inventors
- 👤 Giichi Iida
- 👤 Yoshihiko Tsuboike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/002; F01N3/00; F01N3/02; F01N3/05; F02; F02B; F02B35/00; F02B35/02; F01N2270/00; F01N2270/02; F01N2270/08; F01N2590/00; F01N2590/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
193 words
A power equipment comprising: an internal combustion engine incorporated as a power source; a muffler connected with said internal combustion engine for muffling and discharging exhaust gas from said internal combustion engine; a blower driven by said internal combustion engine; an exhaust pipe member disposed in the vicinity of said muffler, said exhaust pipe member having an exhaust gas passage portion which communicates at one end thereof with the outlet of said muffler and an outlet passage portion which is communicating with the other end of said exhaust gas passage portion at a side portion of an upstream end thereof and having a downstream outlet end which communicates with the atmosphere; a tubular member connected at one end thereof with said blower for introducing a portion of compressed air flow from said blower; a gap defined between an opening formed in said exhaust pipe member at an upstream end thereof and the other end of said tubular member disposed in the vicinity of said opening, and said gap opened to the atmosphere; and a guide pipe member which defines said opening in the interior of the upstream end of said exhaust pipe member.
Claim 2
Dependent Claim
193 words
A power equipment comprising: an internal combustion engine incorporated as a power source; a muffler connected with said internal combustion engine for muffling and discharging exhaust gas from said internal combustion engine; a blower driven by said internal combustion engine; an exhaust pipe member disposed in the vicinity of said muffler, said exhaust pipe member having an exhaust gas passage portion which communicates at one end thereof with the outlet of said muffler and an outlet passage portion which is communicating with the other end of said exhaust gas passage portion at a side portion of an upstream end thereof and having a downstream outlet end which communicates with the atmosphere; a tubular member connected at one end thereof with said blower for introducing a portion of compressed air flow from said blower; a gap defined between an opening formed in said exhaust pipe member at an upstream end thereof and the other end of said tubular member disposed in the vicinity of said opening, and said gap opened to the atmosphere; and a guide pipe member which defines said opening in the interior of the upstream end of said exhaust pipe member.
Claim 3
Dependent Claim
35 words
A power equipment according to claim 1, wherein a side opening which expands radially outwardly is formed at an intermediate position in a side wall of said outlet passage portion of said exhaust pipe member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |