Pumps – Three or more cylinders arranged in parallel – radial – or...
Reexamination Certificate
2006-01-10
2006-01-10
Freay, Charles G. (Department: 3746)
Pumps
Three or more cylinders arranged in parallel, radial, or...
C417S270000, C417S297000, C417S298000, C417S435000, C091S420000, C060S476000, C060S475000
Reexamination Certificate
active
06984113
ABSTRACT:
An oil pressure operated pump for marine steering gears includes a multiple piston oil pressure operated pump controlled by a steering wheel, a valve housing mounted under the pump, a bottom cover closing the valve, the valve housing and the cover each including channels, threaded holes for reciprocal fastening thereof, non-threaded bores for oil pressure connections, a valve set lodged in the valve housing for non-return and adjustment of oil flow, the valve set including a generally parallelepiped shaped tubular shell having a generally external square shape, a central tubular through-hole, and lathe-turned ducts, a double acting oil pressure cylinder including a shaft movable in the central tubular through-hole for controlling a direction of an engine or rudder of a boat, and valves for controlling fluid flow and thereby movement of the shaft.
REFERENCES:
patent: 2036748 (1936-04-01), Fitzgerald
patent: 2439879 (1948-04-01), Allen
patent: 2479063 (1949-08-01), Forsythe
patent: 2568897 (1951-09-01), Norelius
patent: 2634145 (1953-04-01), Monahan
patent: 2838333 (1958-06-01), Wilder et al.
patent: 3175509 (1965-03-01), Kuze
patent: 3566746 (1971-03-01), Harrison
patent: 3576192 (1971-04-01), Wood et al.
patent: 3655205 (1972-04-01), Petersen
patent: 3747351 (1973-07-01), Wilkerson et al.
patent: 3857404 (1974-12-01), Johnson
patent: 4286432 (1981-09-01), Burrows et al.
patent: 4551105 (1985-11-01), Hall
patent: 4754776 (1988-07-01), McKee
patent: 5146745 (1992-09-01), Doetsch
patent: 5163352 (1992-11-01), Yoshino
patent: 5289756 (1994-03-01), Kobelt
patent: 5349818 (1994-09-01), McFadyen et al.
patent: 5607166 (1997-03-01), Gorman
patent: 5638679 (1997-06-01), Richards
patent: 5685215 (1997-11-01), Jepsen et al.
patent: 5816359 (1998-10-01), Gregorio et al.
patent: RE36342 (1999-10-01), McFadyen et al.
patent: 42 41 418 (1994-06-01), None
Freay Charles G.
Goldberg Richard M.
Sayoc Emmanuel
Ultraflex S.p.A.
LandOfFree
Oil pressure operated pump for marine steering gears with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil pressure operated pump for marine steering gears with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil pressure operated pump for marine steering gears with a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3539302