US3591127A — Butterfly valve structure with combined translati…

Claim 1

Independent Claim 203 words

A valve structure comprising: a housing having fluid inlet and fluid outlet ports; a valve closure member having a centrally positioned sleeve; closure member seat means for engagement by said valve closure member; a solid shaft extending through said housing and said sleeve with positive interlocking means to said sleeve to thereby provide rigid attachment to and support of said valve closure member; shaft-bearing means at opposite sides of said housing to rotatably support said shaft on a first center of rotation; bushing means supporting each of said shaft-bearing means; bushing bearing means to support each of said bushings on a second center of rotation eccentric to said first center of rotation with one of said bushing means extending externally of said housing; first actuation means to apply a rotational force to the end of said shaft extending through one side of said housing; and second actuation means to apply a rotational force to said one of said bushing means extending through the said side of said housing, said means including interconnecting means to transmit such applied rotational force to the other of said bushing comprising a web extending between said bushings through said housing, eccentric to an in juxtaposition to said shaft.

Claim 2

Dependent Claim 203 words

A valve structure comprising: a housing having fluid inlet and fluid outlet ports; a valve closure member having a centrally positioned sleeve; closure member seat means for engagement by said valve closure member; a solid shaft extending through said housing and said sleeve with positive interlocking means to said sleeve to thereby provide rigid attachment to and support of said valve closure member; shaft-bearing means at opposite sides of said housing to rotatably support said shaft on a first center of rotation; bushing means supporting each of said shaft-bearing means; bushing bearing means to support each of said bushings on a second center of rotation eccentric to said first center of rotation with one of said bushing means extending externally of said housing; first actuation means to apply a rotational force to the end of said shaft extending through one side of said housing; and second actuation means to apply a rotational force to said one of said bushing means extending through the said side of said housing, said means including interconnecting means to transmit such applied rotational force to the other of said bushing comprising a web extending between said bushings through said housing, eccentric to an in juxtaposition to said shaft.

Claim 3

Dependent Claim 64 words

The valve structure of claim 1 in combination with a single reciprocating actuation means wherein said second actuation means comprises gear means on said one of said bushings and in driven relationship to rack means on said reciprocating actuation means and wherein said first actuation means comprises crank means connected to said shaft and link means between said reciprocating means and said crank means.

Claim 4

Dependent Claim 47 words

The valve of claim 2 wherein said rack means in engagement with said gear means on said bushing means for a limited portion of the travel of said reciprocating means during movement of the closure member into and out of engagement with the closure member seat means.

Claim 5

Dependent Claim 67 words

The valve of claim 3 wherein said rack means is operative during the limited portion of its engagement with the gear means to translate the center of the shaft an axial distance substantially equal to the travel of said reciprocating means during the limited portion of engagement whereby the valve closure member is removed from seat means in substantially axial movement without rotation of the closure member.

Claim 6

Dependent Claim 38 words

The valve of claim 2 wherein the link means is positioned substantially parallel to the reciprocating means when the valve closure member is about 75* open whereby to minimize the loading on bearing supports for said reciprocating means.

Claim 7

Dependent Claim 21 words

The valve of claim 1 wherein said shaft-bearing means and said bushing bearing means comprise bearings with extended axial bearing surfaces.

Claim 8

Dependent Claim 34 words

The valve of claim 1 including detents carried by one of the said shaft and bushing means operative to lock said valve closure member in at least one of the open and closed positions.

Claim 9

Dependent Claim 30 words

The valve of claim 2 including detents carrIed by said reciprocating means and operative to lock said valve closure member in at least one of the open and closed positions.

Claim 10

Dependent Claim 31 words

The valve of claim 2 including spring means bearing on said reciprocating means and operative to bias said valve closure member into at least one of the open and closed positions.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-07-05	1975-01-04	1975-07-06	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-07-05	1979-01-04	1979-07-06	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-07-05	1983-01-04	1983-07-06	$7700.00	Window Closed / Lapsed

Butterfly valve structure with combined translation and rotary movements

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