Abstract A sight-glass adapter which may be provided in the form of a separate kit for use with existing sight-glass arrangements as currently in use with tanks and other vessels. The adapter unit of this kit provides all of the necessary elements for connection between the existing valves and the existing sight glass in order to properly hold the sight glass in a manner which will permit easy and quick access to the interior thereof for the purpose of cleaning same. The adapter includes a main body element having a threaded projection at one end thereof for receiving a sight-glass retaining nut thereon together with appropriate rubber seal and metal washer structure. The other end of the main body member has a removable screw plug for permitting quick access to the interior of the member as well as the interior of the sight glass itself. An aperture tapped on one side of the main body element receives a secondary member having a projecting screw threaded end receivable in the main body member tap with the other end of the member having a retaining collar and appropriate nut thereon for attachment to the existing valve for the sight glass. A recessed tip end with O-ring seal is also provided for the other end of this secondary member in order to form a fluid tight seal in engagement with the valve structure. A wrench receiving recess is also provided on the body of the secondary member.
Inventors
👤 William H. Coats
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-29 03:10
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
397 words
A sight-glass adapter unit comprising; a main body member of tubular shape, a central opening extending longitudinally of the main body member and opening to each end thereof, one end of the opening for alignment with the end of a sight glass, means associated with this end of the main body for retaining in liquid tight manner the end of a sight glass fastened to this end portion, the other end of the main body member having a removable closure means associated therewith, and additional means for connecting the main body member to a valve on a vessel on which the sight glass is to be used, the means associated with the end of the sight glass for retention thereof including a threaded projection on the one end of the main body member, a flexible and resilient sealing member engageable around the tip of the sight glass, and a removable nut with a central aperture just slightly larger than the circumference of the sight glass and threaded for tightening on the threaded projection of the main body member for compressing the resilient seal member to form a liquid tight seal, the removable closure means for the other end of the main body member consisting of a threaded plug member with wrench engaging projection thereon for reception in a threaded aperture in the main body member, the additional means for connecting the main body member to an existing valve consisting of an elongated secondary body member separate from the main body member and having a threaded projection at one end thereof for reception in a threaded side aperture in the main body member and permitting attachment and removal of the main body member to the valve with the liquid tight seal of the sight glass intact, a central aperture extending through the secondary body member for permitting liquid flow therethrough, a valve engaging projection on the other end of the secondary body member, a retaining collar provided thereon, sealing means provided thereon, and a retaining nut for association with the collar and the existing valve to retain the secondary body member in liquid tight engagement with the valve, the retaining nut being spaced from the main body member and the secondary body member having provided thereon a wrench engaging slot disposed between the nut and main body member for facilitating mounting and removal of the secondary body member.
Claim 2
Dependent Claim
397 words
A sight-glass adapter unit comprising; a main body member of tubular shape, a central opening extending longitudinally of the main body member and opening to each end thereof, one end of the opening for alignment with the end of a sight glass, means associated with this end of the main body for retaining in liquid tight manner the end of a sight glass fastened to this end portion, the other end of the main body member having a removable closure means associated therewith, and additional means for connecting the main body member to a valve on a vessel on which the sight glass is to be used, the means associated with the end of the sight glass for retention thereof including a threaded projection on the one end of the main body member, a flexible and resilient sealing member engageable around the tip of the sight glass, and a removable nut with a central aperture just slightly larger than the circumference of the sight glass and threaded for tightening on the threaded projection of the main body member for compressing the resilient seal member to form a liquid tight seal, the removable closure means for the other end of the main body member consisting of a threaded plug member with wrench engaging projection thereon for reception in a threaded aperture in the main body member, the additional means for connecting the main body member to an existing valve consisting of an elongated secondary body member separate from the main body member and having a threaded projection at one end thereof for reception in a threaded side aperture in the main body member and permitting attachment and removal of the main body member to the valve with the liquid tight seal of the sight glass intact, a central aperture extending through the secondary body member for permitting liquid flow therethrough, a valve engaging projection on the other end of the secondary body member, a retaining collar provided thereon, sealing means provided thereon, and a retaining nut for association with the collar and the existing valve to retain the secondary body member in liquid tight engagement with the valve, the retaining nut being spaced from the main body member and the secondary body member having provided thereon a wrench engaging slot disposed between the nut and main body member for facilitating mounting and removal of the secondary body member.