Patent US3857545A successfully refreshed from Google Patents.
US3857545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for deep vacuum chambers
Assignee: Briggs and Stratton Corp
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Filing: 1973-06-14
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Granted: 1974-12-31
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Expires: 1993-06-14
Abstract
Abstract A valve for a deep vacuum chamber has a rotatable actuating shaft extending across a passage controlled by a disc-like valve member. The valve member has limited axial motion relative to the shaft, can swing bodily about it, and has a toggle connection with the shaft whereby in one part of shaft rotation the valve member moves flatwise between a closed position in which its peripheral margin engages a circumferential seat and a partly open position spaced from the seat, and in another part of shaft rotation the valve member swings about the shaft to and from a fully open position in which it is edgewise to the seat.
Inventors
- 👤 J Santi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:13
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/24; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52408; F16K31/52441
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
410 words
A valve for a vacuum chamber or the like comprising: A. a valve body in which there is a passage and which has an annular surface in said passage that faces in one axial direction and defines a valve seat; B. a disc-like valve member having a front face with a circumferential portion that can be sealingly engaged with said valve seat in a closed position of the valve member, said valve member leaving said passage substantially unobstructed when it is in an open position in which its front face is substantially parallel to the passage axis; C. a shaft extending substantially diametrally to the passage and which is spaced in said one axial direction from the valve seat, said shaft being constrained to rotation about its axis; D. means providing a first connection between the valve member and the shaft by which the valve member is supported on the shaft with its front face substantially parallel to the shaft axis, said first connection providing for rotation of the shaft relative to the valve member and for bodily flatwise motion of the valve member relative to the shaft between the closed position of the valve member and another position thereof in which the valve member is between the shaft and the valve seat and is spaced from the latter; E. means providing a second connection between the valve member and the shaft by which rotation of the shaft through one predetermined angle effects flatwise motion of the valve member between its closed position and said other position and by which rotation of the shaft through another predetermined angle effects flatwise rotational motion of the valve member between its said other position and its open position, the last mentioned means comprising a link having at one end thereof a pivotal connection with the valve member and at its other end a pivotal connection with the shaft that is eccentric to the axis thereof; F. yielding biasing means reacting between the valve body and the valve member to urge the latter from its open position towards its said other position; and G. cooperating slidable stop means on the valve body and on the valve member, spaced from the shaft, engageable upon swinging of the valve member from its open position to its said other position to define the latter and cooperating with the biasing means to confine the valve member to flatwise motion between its said other position and its closed position.
Claim 2
Dependent Claim
410 words
A valve for a vacuum chamber or the like comprising: A. a valve body in which there is a passage and which has an annular surface in said passage that faces in one axial direction and defines a valve seat; B. a disc-like valve member having a front face with a circumferential portion that can be sealingly engaged with said valve seat in a closed position of the valve member, said valve member leaving said passage substantially unobstructed when it is in an open position in which its front face is substantially parallel to the passage axis; C. a shaft extending substantially diametrally to the passage and which is spaced in said one axial direction from the valve seat, said shaft being constrained to rotation about its axis; D. means providing a first connection between the valve member and the shaft by which the valve member is supported on the shaft with its front face substantially parallel to the shaft axis, said first connection providing for rotation of the shaft relative to the valve member and for bodily flatwise motion of the valve member relative to the shaft between the closed position of the valve member and another position thereof in which the valve member is between the shaft and the valve seat and is spaced from the latter; E. means providing a second connection between the valve member and the shaft by which rotation of the shaft through one predetermined angle effects flatwise motion of the valve member between its closed position and said other position and by which rotation of the shaft through another predetermined angle effects flatwise rotational motion of the valve member between its said other position and its open position, the last mentioned means comprising a link having at one end thereof a pivotal connection with the valve member and at its other end a pivotal connection with the shaft that is eccentric to the axis thereof; F. yielding biasing means reacting between the valve body and the valve member to urge the latter from its open position towards its said other position; and G. cooperating slidable stop means on the valve body and on the valve member, spaced from the shaft, engageable upon swinging of the valve member from its open position to its said other position to define the latter and cooperating with the biasing means to confine the valve member to flatwise motion between its said other position and its closed position.
Claim 3
Dependent Claim
59 words
cooperating slidable stop means on the valve body and on the valve member, spaced from said diametral axis, engageable upon swinging of the valve member from its open position to its intermediate position to define the latter and cooperating with the biasing means to confine the valve member to flatwise motion between its intermediate position and its closed position.
Claim 4
Dependent Claim
59 words
cooperating slidable stop means on the valve body and on the valve member, spaced from said diametral axis, engageable upon swinging of the valve member from its open position to its intermediate position to define the latter and cooperating with the biasing means to confine the valve member to flatwise motion between its intermediate position and its closed position.
Claim 5
Dependent Claim
200 words
The valve of claim 1, further characterized by: H. a radially projecting actuating arm on said shaft having a first pivotal link connection at its free end, the axis of said link connection being parallel to the shaft axis, and said axes defining a first plane when the shaft is in a valve-closed position; I. an actuating lever swingable about a fixed fulcrum and having at its free end a second pivotal link connection, the axes of said fulcrum and said second link connection being parallel to the shaft axis and, in a valve-closed position of said actuating lever, being disposed at opposite sides of said first plane and in a second plane which is normal to said first plane and which also contains the axis of the first link connection; J. a rigid link having its opposite ends respectively connected to said first and second link connections; and K. reversible linear actuator means having a fixed pivotal connection with the valve body at one end thereof and having at its other end a pivotal connection with said actuating lever that is spaced from the fulcrum thereof, said actuator means being movable in directions substantially normal to said second plane.
Claim 6
Dependent Claim
18 words
means providing a first pivotal connection between one end of said link means and the valve member, and
Claim 7
Dependent Claim
18 words
means providing a first pivotal connection between one end of said link means and the valve member, and
Claim 8
Dependent Claim
25 words
elongated guide members on the valve member, projecting from one surface thereof and normal thereto, slidingly engaged with said guide surfaces on the collar means.
Claim 9
Dependent Claim
25 words
elongated guide members on the valve member, projecting from one surface thereof and normal thereto, slidingly engaged with said guide surfaces on the collar means.
Claim 10
Dependent Claim
92 words
for flatwise swinging movement about an axis substantially diametral to it between said other position and said open position; E. means providing a toggle connection between the shaft and the valve member whereby displacement of the shaft through one part of its range of rotation swings the valve member between its open position and its said other position, and displacement of the shaft through another and adjacent part of its range of rotation translates the valve member flatwise between its said other position and its closed position, said toggle connection means comprising
Claim 11
Dependent Claim
92 words
for flatwise swinging movement about an axis substantially diametral to it between said other position and said open position; E. means providing a toggle connection between the shaft and the valve member whereby displacement of the shaft through one part of its range of rotation swings the valve member between its open position and its said other position, and displacement of the shaft through another and adjacent part of its range of rotation translates the valve member flatwise between its said other position and its closed position, said toggle connection means comprising
Claim 12
Dependent Claim
249 words
means providing a second pivotal connecTion between the other end of said link means and the shaft, said second pivotal connection being eccentric to the shaft axis, said toggle connection means being so arranged that when the valve member is in its closed position the axes of said pivotal connections lie in a plane that contains the shaft axis and is parallel to the axis of the valve seat; F. a shaft actuating lever swingable about a fixed fulcrum axis spaced to one side of the shaft axis and parallel thereto, and having an arm long enough to extend a substantial distance to the opposite side of the shaft axis; G. a rigid toggle link having at one end a pivotal connection to the free end of said shaft actuating lever arm and having at its other end a pivotal connection with said shaft that is eccentric to the axis thereof, said pivotal connections having their axes parallel to the axis of the shaft; and H. means for actuating the shaft actuating lever to and from a position at which the axes of said pivotal connections are on a line which also extends through said fulcrum axis and which is spaced from the shaft axis, the shaft being in a position of rotation in which it maintains the valve member in its closed position when the shaft actuating lever is in its said position, and the link thus providing a toggle connection between the actuating lever and the shaft.
Claim 13
Dependent Claim
249 words
means providing a second pivotal connecTion between the other end of said link means and the shaft, said second pivotal connection being eccentric to the shaft axis, said toggle connection means being so arranged that when the valve member is in its closed position the axes of said pivotal connections lie in a plane that contains the shaft axis and is parallel to the axis of the valve seat; F. a shaft actuating lever swingable about a fixed fulcrum axis spaced to one side of the shaft axis and parallel thereto, and having an arm long enough to extend a substantial distance to the opposite side of the shaft axis; G. a rigid toggle link having at one end a pivotal connection to the free end of said shaft actuating lever arm and having at its other end a pivotal connection with said shaft that is eccentric to the axis thereof, said pivotal connections having their axes parallel to the axis of the shaft; and H. means for actuating the shaft actuating lever to and from a position at which the axes of said pivotal connections are on a line which also extends through said fulcrum axis and which is spaced from the shaft axis, the shaft being in a position of rotation in which it maintains the valve member in its closed position when the shaft actuating lever is in its said position, and the link thus providing a toggle connection between the actuating lever and the shaft.
Claim 14
Dependent Claim
87 words
The valve of claim 1, further characterized by: said link that comprises the second connection between the valve member and the shaft being so arranged that in the closed position of the valve member said pivotal connections of said link to the valve member and to the shaft lie substantially in a plane that also contains the axis of the shaft, so that the link comprises a toggle connection between the shaft and the valve member by which the latter is releasably locked in its closed position.
Claim 15
Dependent Claim
33 words
biasing means urging the valve member to swing about said substantially diametral axis in the direction to carry the valve member away from its open position and towards its said other position; and
Claim 16
Dependent Claim
33 words
biasing means urging the valve member to swing about said substantially diametral axis in the direction to carry the valve member away from its open position and towards its said other position; and
Claim 17
Dependent Claim
59 words
elongated, paired guide members on the valve member, projecting from the face of the valve member that is remote from the valve seat when the valve member is in its closed position, said guide members being disposed at opposite sides of the shaft and cooperating with the shaft to guide the valve member for its translatory and swinging motions.
Claim 18
Dependent Claim
59 words
elongated, paired guide members on the valve member, projecting from the face of the valve member that is remote from the valve seat when the valve member is in its closed position, said guide members being disposed at opposite sides of the shaft and cooperating with the shaft to guide the valve member for its translatory and swinging motions.
Claim 19
Dependent Claim
117 words
A valve for a vacuum chamber or the like comprising: A. a valve body in which there is an annular surface that faces in one axial direction and defines a valve seat surrounding a port; B. a shaft confined to rotation in the valve body and extending transversely to the axis of the valve seat; C. a disc-like valve member which is sealingly flatwise engageable with said valve seat when in a closed position and which leaves the port substantially unobstructed when it is in an open position in which it is oriented with its faces substantially parallel to the axes of the valve seat and of said shaft; D. means mounting and guiding the valve member
Claim 20
Dependent Claim
117 words
A valve for a vacuum chamber or the like comprising: A. a valve body in which there is an annular surface that faces in one axial direction and defines a valve seat surrounding a port; B. a shaft confined to rotation in the valve body and extending transversely to the axis of the valve seat; C. a disc-like valve member which is sealingly flatwise engageable with said valve seat when in a closed position and which leaves the port substantially unobstructed when it is in an open position in which it is oriented with its faces substantially parallel to the axes of the valve seat and of said shaft; D. means mounting and guiding the valve member
Claim 21
Dependent Claim
63 words
cooperating guide means on the valve member and on the valve body, engageable upon swinging of the valve member in the last mentioned direction to confine the valve member against swinging beyond its said other position, said guide means being cooperable with said biasing means to constrain the valve member to substantially translatory motion between its said other position and its closed position.
Claim 22
Dependent Claim
63 words
cooperating guide means on the valve member and on the valve body, engageable upon swinging of the valve member in the last mentioned direction to confine the valve member against swinging beyond its said other position, said guide means being cooperable with said biasing means to constrain the valve member to substantially translatory motion between its said other position and its closed position.
Claim 23
Dependent Claim
15 words
The valve of claim 4 wherein said means mounting and guiding the valve member comprises:
Claim 24
Dependent Claim
16 words
The valve of claim 5 wherein said means mounting and guiding the valve member further comprises:
Claim 25
Dependent Claim
303 words
A valve for a vacuum chamber or the like, of the type comprising a valve body in which there is an annular valve seat that faces in one axial direction and surrounds a port, a shaft confined to rotation in the valve body and extending diametrally thereacross, and a disc-like valve member sealingly flatwise engageable with said valve seat when in a closed position and moveable, in consequence of rotation of the shaft, to and from an open position in which the faces of the valve member are substantially parallel to the axes of the shaft and of the valve seat, through an intermediate position in which the valve member is spaced in said axial direction from the valve seat and has its faces parallel thereto, said valve being characterized by: A. means providing a connection between the shaft and the valve member whereby displacement of the shaft through one part of its range of rotation swings the valve member between its open position and its intermediate position, and displacement of the shaft through another and adjacent part of its range of rotation translates the valve member flatwise between its intermediate position and its closed position, said connection means comprising rigid link means having at one end thereof a pivotal connection with the valve member, on an axis substantially diametral thereto, and having at the other end thereof a pivotal connection with the shaft that is eccentric to the shaft axis, said link means and its pivotal connections being so arranged tHat in the closed position of the valve member the axes of said pivotal connections lie in a plane that contains the shaft axis and is parallel to the axis of the valve seat; and B. means guiding the valve member for movements between its several positions, the last mentioned means comprising
Claim 26
Dependent Claim
303 words
A valve for a vacuum chamber or the like, of the type comprising a valve body in which there is an annular valve seat that faces in one axial direction and surrounds a port, a shaft confined to rotation in the valve body and extending diametrally thereacross, and a disc-like valve member sealingly flatwise engageable with said valve seat when in a closed position and moveable, in consequence of rotation of the shaft, to and from an open position in which the faces of the valve member are substantially parallel to the axes of the shaft and of the valve seat, through an intermediate position in which the valve member is spaced in said axial direction from the valve seat and has its faces parallel thereto, said valve being characterized by: A. means providing a connection between the shaft and the valve member whereby displacement of the shaft through one part of its range of rotation swings the valve member between its open position and its intermediate position, and displacement of the shaft through another and adjacent part of its range of rotation translates the valve member flatwise between its intermediate position and its closed position, said connection means comprising rigid link means having at one end thereof a pivotal connection with the valve member, on an axis substantially diametral thereto, and having at the other end thereof a pivotal connection with the shaft that is eccentric to the shaft axis, said link means and its pivotal connections being so arranged tHat in the closed position of the valve member the axes of said pivotal connections lie in a plane that contains the shaft axis and is parallel to the axis of the valve seat; and B. means guiding the valve member for movements between its several positions, the last mentioned means comprising
Claim 27
Dependent Claim
34 words
The valve of claim 7 wherein the shaft is spaced in said axial direction from the valve seat and wherein said means guiding the valve member for movements between its several positions further comprises:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |