Patent US4568293A successfully refreshed from Google Patents.
US4568293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air intake arrangement for a small boat
Assignee: Kawasaki Motors Ltd
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Filing: 1985-01-03
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Granted: 1986-02-04
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Expires: 2005-01-03
Abstract
Abstract This disclosure relates to an air intake arrangement for a small boat including a hull, wherein the front end of a handle pole of the boat is supported pivotably on a horizontal shaft on the upper deck of the hull at a position which is on the longitudinal center line of the hull, and a handle lever to be held by an operator is attached to the rear end of the handle pole. An air intake port for taking fresh air into the engine compartment in the interior of the hull is provided on substantially the center line at a position corresponding to the lower side of the handle pole on the deck, and a lead-in opening for taking the air from the front of the boat and leading it into the air intake port is formed in the handle pole.
Inventors
- 👤 Mitsuhiro Yazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:00
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/16; F02M35/165; F02M35/167; B; B63; B63B; B63B34/00; B63B34/10; B63H; B63H21/00; B63H21/32; F02B; F02B61/00; F02B61/04; F02B61/045; F02M35/10; F02M35/10006; F02M35/10013
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
Air intake apparatus for a small boat, comprising a hull having a longitudinal center line, a longitudinally extending handle pole having a front end and a rear end, means for pivotably supporting said front end of said handle pole on the upper side of said hull along substantially said center line of said hull, said handle pole being pivotable between a lowered position where it extends closely adjacent said upper side of said hull and a raised position where it is angled rearwardly and upwardly from said pivotable supporting means, an air intake port formed in said hull for taking air into the hull, said port being substantially on said center line at a position adjacent the lower side of said handle pole when said handle pole is in said lowered position, and said handle pole forming a lead-in opening for conducting air from the front of said hull and leading it into said air intake port when said handle pole is in said lowered position.
Claim 2
Dependent Claim
166 words
Air intake apparatus for a small boat, comprising a hull having a longitudinal center line, a longitudinally extending handle pole having a front end and a rear end, means for pivotably supporting said front end of said handle pole on the upper side of said hull along substantially said center line of said hull, said handle pole being pivotable between a lowered position where it extends closely adjacent said upper side of said hull and a raised position where it is angled rearwardly and upwardly from said pivotable supporting means, an air intake port formed in said hull for taking air into the hull, said port being substantially on said center line at a position adjacent the lower side of said handle pole when said handle pole is in said lowered position, and said handle pole forming a lead-in opening for conducting air from the front of said hull and leading it into said air intake port when said handle pole is in said lowered position.
Claim 3
Dependent Claim
48 words
Apparatus according to claim 1, wherein said handle pole comprises a pair of spaced side parts which extend longitudinally on opposite sides of said center line, and a rearward part which connects the rearward ends of said side parts, said lead-in opening extending longitudinally between said side parts.
Claim 4
Dependent Claim
24 words
Apparatus according to claim 2, wherein said air intake port is located between said pair of side parts and closely adjacent said rearward part.
Claim 5
Dependent Claim
32 words
Apparatus according to claim 2, wherein said handle pole further includes an air lead-in wall which extends along the bottom of said side parts and conducts air to said air intake port.
Claim 6
Dependent Claim
43 words
Apparatus according to claim 2, wherein said hull further includes an upwardly extending duct and said air intake port is formed on the front side of said duct, said duct extending between said side parts when said handle is in said lowered position.
Claim 7
Dependent Claim
114 words
Air intake apparatus for a small boat comprising a hull having an upper side and a longitudinal center line, an elongated handle pole extending generally along said center line, means pivotably mounting said pole for swinging movement between raised and lowered positions, said pole extending closely adjacent said hull when in said lowered position and slanting upwardly and rearwardly when in said raised position, said hull forming an interior engine compartment, and air intake means formed on said upper side of said hull, said pole including two laterally spaced side parts, and said side parts being closely adjacent and on opposite sides of said intake means when said pole is in said lowered position.
Claim 8
Dependent Claim
114 words
Air intake apparatus for a small boat comprising a hull having an upper side and a longitudinal center line, an elongated handle pole extending generally along said center line, means pivotably mounting said pole for swinging movement between raised and lowered positions, said pole extending closely adjacent said hull when in said lowered position and slanting upwardly and rearwardly when in said raised position, said hull forming an interior engine compartment, and air intake means formed on said upper side of said hull, said pole including two laterally spaced side parts, and said side parts being closely adjacent and on opposite sides of said intake means when said pole is in said lowered position.
Claim 9
Dependent Claim
27 words
Apparatus according to claim 6, and further including a wall forming a longitudinally extending lead-in path located forwardly of said intake means and between said side parts.
Claim 10
Dependent Claim
17 words
Apparatus according to claim 7, wherein said wall is formed on said upper side of said hull.
Claim 11
Dependent Claim
21 words
Apparatus according to claim 7, wherein said wall is formed on said handle pole and is connected between said side parts.
Claim 12
Dependent Claim
23 words
Apparatus according to claim 6, and further including an exhaust port formed in said hull closely adjacent and rearwardly of said mounting means.
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) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |