Patents Assigned to VEMCO
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Patent number: 5797428Abstract: A valve unit to control the flow of high-pressure fluid comprising a housing having a fluid inlet and a fluid outlet; a flow port in the housing communicating between the inlet and outlet, and a seat about the flow port; stem structure in the housing, and a stopper carried by the stem structure to be moved therewith toward and away from the seat; a stack of metallic diaphragms connected to the stem structure and to the housing, to flex and seal off therebetween as the stem structure moves, there being a flow chamber in the housing at one side of the diaphragms, and a control chamber in the housing at the opposite side of the diaphragms; control structure carried by the housing and extending into the control chamber to effect the movement of the stem structure, the control structure being movable relative to the housing; and signal structure carried by the housing to signal presence or absence of pressurized fluid leakage from the flow chamber, and from the control chamber.Type: GrantFiled: July 1, 1997Date of Patent: August 25, 1998Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5794916Abstract: In a valve unit to control the flow of high-pressure fluid, the combination comprising a housing having a fluid inlet and a fluid outlet; a flow port in the housing communicating between the inlet and outlet; a control for controlling fluid flow through the flow port; tubular structure connected to the housing to receive fluid flowing through the outlet; the housing defining an annular shoulder bounding an annular recess at the outlet, and the tubular structure defining a tapered annular nose received in the recess, there being a thin metallic sealing washer clamped between the tapered annular shoulder and the nose; and the washer having a skirt carried by the tubular structure in washer aligning position relative to the nose.Type: GrantFiled: April 25, 1997Date of Patent: August 18, 1998Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5722638Abstract: A fluid valve that comprises a body forming a cavity and a cap on the body extending over the cavity, the cap and body carrying interengaging threads allowing rotary make-up of the cap on the body; a diaphragm in the cavity and seated on a ledge formed in the body, thereby to form a seal; a pressure-transmitting element in the cavity to transmit cap thrust to effectuate the seal; and blocking structure to block relative rotary movement between the pressure-transmitting element and the body.Type: GrantFiled: April 5, 1996Date of Patent: March 3, 1998Assignee: Vemco CorporationInventors: Robert F. Miller, Frederick J. Haydock
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Patent number: 5704408Abstract: A hollow tube attachable at one end to a container of fluid is provided at the other end with a fluid conduit termination disk separated from the end of the hollow tube by a space that defines a fluid discharge opening. A slide valve on the exterior of the tube is biased into a closed position engaging the fluid conduit termination disk and precluding fluid transfer until the discharge opening is inside a receiving vessel. A barricade is disposed across the interior of the tube at an inclination relative to the longitudinal axis thereof. Formed through the barricade is at least one elongated aperture extending continuously from a first longitudinal position in the tube to a second longitudinal position in the tube that is located further from the container of fluid than is the first longitudinal position.Type: GrantFiled: April 14, 1995Date of Patent: January 6, 1998Assignee: Vemco, Inc.Inventor: Verl Law
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Patent number: 5671775Abstract: In a valve unit to control the flow of high-pressure fluid, the combination comprises a housing having a fluid inlet and a fluid outlet, a flow port in the housing communicating between the inlet and outlet, and a seat associated with the flow port; a stopper to be moved toward and away from the seat; a flow chamber in the housing to which high-pressure fluid flows when the stopper has been moved from the seat, for flow to the outlet, the stopper used to close off the flow when the stopper engages the seat; a cap carried by the housing at the outlet; and first signal means associated with the cap to signal presence or absence of pressurized fluid leakage into the flow chamber before the stopper has been moved from the seat.Type: GrantFiled: April 29, 1996Date of Patent: September 30, 1997Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5669414Abstract: A valve unit to control the flow of high-pressure fluid comprising a housing having a fluid inlet and a fluid outlet; a flow port in the housing communicating between the inlet and outlet, and a seat about the flow port; stem structure in the housing, and a stopper carried by the stem structure to be moved therewith toward and away from the seat; a stack of metallic diaphragms connected to the stem structure and to the housing, to flex and seal off therebetween as the stem structure moves, there being a flow chamber in the housing at one side of the diaphragms, and a control chamber in the housing at the opposite side of the diaphragms; control structure carried by the housing and extending into the control chamber to effect the movement of the stem structure, the control structure being movable relative to the housing; and signal structure carried by the housing to signal presence or absence of pressurized fluid leakage from the flow chamber, and from the control chamber.Type: GrantFiled: January 11, 1996Date of Patent: September 23, 1997Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5638862Abstract: A valve unit to control the flow of high-pressure fluid comprising a housing having a fluid inlet and a fluid outlet; a flow port in the housing communicating between the inlet and outlet, and a seat about the flow port; stem structure in the housing, and a stopper carried by the stem structure to be moved therewith toward and away from the seat; multiple stacked metallic diaphragms connected to the stem structure and to the housing, to flex and seal off therebetween as the stem structure moves, there being a flow chamber in the housing at one side of the diaphragms, and a control chamber in the housing at the opposite side of the diaphragms; control structure carried by the housing and extending into the control chamber to effect the movement of the stem structure, the control structure being movable relative to the housing; and deformable cushion structure in the control chamber to cushion movement of the diaphragm in one direction, and to conform to diaphragm flexing; the diaphragms having outer portions tType: GrantFiled: January 11, 1996Date of Patent: June 17, 1997Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5501247Abstract: In a fluid pressure regulator, the combination comprising a body forming a cavity and a cap on the body extending over the cavity, the cap and body carrying interengaging threads allowing rotary make-up of the cap on the body; a diaphragm in the cavity and seated on a ledge formed by the body, thereby to form a seal; a pressure transmitting element in the cavity to transmit cap pressure to said seal, the body having flow porting and there being a poppet in the body and movable to control fluid flow via the porting; a spring in the cap and structure in the cavity and axially movable to transmit spring pressure to the diaphragm, the poppet carried for axial movement with the structure, and blocking means to block relative rotary movement between the pressure transmitting element and at least one of the body and the structure.Type: GrantFiled: February 17, 1995Date of Patent: March 26, 1996Assignee: Vemco CorporationInventor: Robert F. Miller
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Patent number: 5282755Abstract: A lamp lock for assembly of a fluorescent lamp with a lamp fixture is provided. A wafer-like body portion is made of electrically insulating material capable of use in the temperature range experienced by bi-pins of the fluorescent lamp. In use, the body portion is inserted between an axial end of the lamp and an adjacent face of the lamp fixture. The body portion has a leading edge and is provided with a slot extending through the leading edge for reception of the bi-pins. The lock further has a first lateral edge for sliding proximal engagement with a planar surface proximate to the lamp fixture for preventing the lock and the lamp from rotating, thereby securing the lamp to the lamp fixture. Preferably, the slot extends between, and in parallel alignment with, the first lateral edge and a second lateral edge of the body portion, such that the distance between the first lateral edge and the slot is greater than the distance between the second lateral edge and the slot.Type: GrantFiled: January 19, 1993Date of Patent: February 1, 1994Assignee: Vemco CorporationInventor: Arthur G. Ahlstone
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Patent number: 5251392Abstract: An artificial window comprises a box having a rear wall, and walls bounding an interior space which faces longitudinally forwardly; sheet structure extending laterally crosswise of the space, and a viewable pattern associated with the sheet structure to be illuminated by light passing forwardly from the box interior; first and second light sources in the box; a reflector structure in the box to reflect light from the first source in a direction toward the sheet structure for effecting illumination of the viewable pattern; and there being control structure for controlling the illumination of the viewable pattern to independently, differentially, and progressively change the illumination of the viewable pattern.Type: GrantFiled: February 8, 1991Date of Patent: October 12, 1993Assignee: Vemco CorporationInventor: Paul G. McManigal
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Patent number: 5249611Abstract: A hollow tube attachable at one end to a container of fluid is provided at the other end with an end cap in which is formed a fluid discharge opening through which to transfer fluid. The end cap includes a first portion inserted into the tube, while a second portion remains exterior thereto. A slide valve on the exterior of the tube is biased into a closed position, precluding fluid transfer until the discharge opening is inside a receiving vessel. An air vent passageway in the form of an air vent recess in the outer surface of the first portion of the end cap communicates between the interior of the container and the exterior of the fluid conduit. When the receiving vessel is filled, fluid in the receiving vessel closes entry to the air vent passageway, terminating air flow into the container and stopping fluid flow through the conduit. Capillary sections of reduced cross-sectional area relative that of the air vent passageway are located at either end of the air vent recess.Type: GrantFiled: May 23, 1991Date of Patent: October 5, 1993Assignee: Vemco, Inc.Inventor: Verl Law
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Patent number: 5207495Abstract: A graphic arts work center comprising a box having a bottom wall, upright side walls, and an associated frame; a light diffuser plate carried by the frame to overlie the bottom wall and define therewith an illumination space; illumination structure in the space to illuminate the underside of the diffuser plate; and a cover retained by the box to overlie the plate and to be upwardly removable to expose the plate for transmitting light to work placed over the plate; the box having auxiliary receptacle structure for storage of equipment usable in conjunction with use of the work placed over the plate.Type: GrantFiled: July 8, 1991Date of Patent: May 4, 1993Assignee: Vemco CorporationInventor: Arthur G. Ahlstone
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Patent number: 5129657Abstract: Opposed ends of two tubular members are relatively displaced toward opposite sides of an annular seal to deform the seal and reduce the seal bore into approximate or actual alignment with the tubular members bore.Type: GrantFiled: June 17, 1991Date of Patent: July 14, 1992Assignee: Vemco CorporationInventor: Paul G. McManigal
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Patent number: 5076333Abstract: A fluid conduit formed of a hollow tube attached at one end to a container of fluid is provided at the other end with an end cap in which is formed a fluid discharge opening through which to transfer fluid. A slide valve on the exterior of the conduit is biased into a closed position, precluding fluid transfer until the discharge opening is inside a receiving vessel. An air vent tube within the conduit communicates between the interior of the container and the exterior of the fluid conduit and admits air into the container to facilitate even-flowing transfers after the transfer of an initial quality of fluid without the admission of air into the container reduces the air pressure therein sufficiently below ambient pressure to curtail further fluid transfer. Fluid filling a receiving container closes entry to the air vent tube when the receiving vessel is filled, terminating air flow into the container and stopping fluid flow through the conduit.Type: GrantFiled: May 30, 1989Date of Patent: December 31, 1991Assignee: Vemco, Inc.Inventor: Verl Law
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Patent number: 5060987Abstract: A coupling is provided for interconnecting two tubular parts having opposed ends and shoulders spaced from the ends, and via which force is applicable to urge the opposed ends toward one another. The coupling includes two tubular members defining a longitudinal axis and adapted to coaxially receive the respective parts and to transmit axial force thereto, via the shoulders; a torque isolator assembly including an annulus received against one of the shoulders on one of the members, and generally longitudinal projection means positioned on the one member to block rotation of the annulus relative to the one member, and about the axis; cooperating screw threads on the members adapted to interfit when the members are relatively rotated to make up the coupling; and a pusher surface on the other of the members engagable with the annulus to transmit axial force via the annulus to the one shoulder, when the coupling is made up.Type: GrantFiled: March 14, 1990Date of Patent: October 29, 1991Assignee: Vemco CorporationInventor: Robert Miller
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Patent number: 5040714Abstract: Opposed ends of two tubular members are relatively displaced toward opposite sides of an annular seal to deform the seal and reduce the seal bore into approximate or actual alignment with the tubular members bore.Type: GrantFiled: April 23, 1990Date of Patent: August 20, 1991Assignee: Vemco CorporationInventor: Paul G. McManigal
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Patent number: 4834151Abstract: A fluid conduit attached at one end to a container of fluid is provided at the other end with a fluid discharge opening through which fluid can be transferred into a receiving vessel. A slide valve on the exterior of the conduit is biased into a closed position, precluding any fluid flow from the conduit until the discharge opening is inside the receiving vessel. The slide valve coacts with the receiving vessel to open and permit fluid flow. An air vent tube within the conduit communicates with an air vent opening in the vicinity of the discharge opening. The air vent tube includes one or more capillary sections of reduced inner diameter relative that of the air vent tube. The air bent tube admits air into the container to facilitate fluid flow, while the capillary section limits the rate at which the air enters, thereby reducing the pressure of air in the container below ambient pressure when fluid flows from the conduit.Type: GrantFiled: March 16, 1987Date of Patent: May 30, 1989Assignee: VEMCOInventor: Verl Law
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Patent number: D523907Type: GrantFiled: April 1, 2005Date of Patent: June 27, 2006Assignee: VEMCO, Inc.Inventor: Verl Law
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Patent number: D524379Type: GrantFiled: April 1, 2005Date of Patent: July 4, 2006Assignee: Vemco, Inc.Inventor: Verl Law
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Patent number: D291662Type: GrantFiled: February 15, 1985Date of Patent: September 1, 1987Assignee: Vemco CorporationInventors: Zoltan Goncze, Andrew M. Ogden, Stanley Y. Kong