Patent US3786837A successfully refreshed from Google Patents.
US3786837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling apparatus
Assignee: Valspar Corp
•
Filing: 1971-11-26
•
Granted: 1974-01-22
•
Expires: 1991-11-26
Abstract
Abstract An outwardly extending discharge line is pivotally connected to a supply line. A torsion spring unit urges the discharge line from a lower dispensing position to a raised position. Apparatus is provided for automatically opening and closing a valve in the supply line in response to movement of the discharge line between its positions. An outlet valve is provided at the outlet of the discharge line and is opened and closed by a pneumatic cylinder controlled by movement of a scale. The outlet valve is a balltype valve having a valve insert with openings of a size such that surface tension of the fluent material will prevent dripping. The insert is formed of a bearing material and is adjustable against the ball valve element to accommodate any wear.
Inventors
- 👤 D Pipkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:25
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/002; F; F16; F16K; F16K23/00; F16K5/00; F16K5/08; F16K5/10; F16L; F16L27/00; F16L27/08; F16L27/0861; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
In a filling apparatus including a discharge line for transporting a fluent material, the combination of: a ball-type valve at the outlet of the discharge line for controlling dispensing therefrom, the valve having an inlet connected to the discharge line, an outlet, and a spherical chamber intermediate the inlet and outlet; a ball valve element closely received in the chamber and having a flow passage therethrough; and the element movable between a closed position and an open position when the flow passage communicates the inlet and outlet; the improvement comprising: a nozzle insert at the valve outlet and having a semi-spherical inner surface providing a continuation of the spherical chamber; the nozzle insert having plurality of cylindrical openings therethrough; each opening having a length greater than its diameter and sized so that the surface tension of the fluent material will prevent dripping therefrom; the nozzle insert being formed of a suitable bearing material to provide a good bearing between the insert and the ball valve element; and means adjustably mounting the nozzle insert for selective movement against the ball valve element to accommodate any wear.
Claim 2
Dependent Claim
185 words
In a filling apparatus including a discharge line for transporting a fluent material, the combination of: a ball-type valve at the outlet of the discharge line for controlling dispensing therefrom, the valve having an inlet connected to the discharge line, an outlet, and a spherical chamber intermediate the inlet and outlet; a ball valve element closely received in the chamber and having a flow passage therethrough; and the element movable between a closed position and an open position when the flow passage communicates the inlet and outlet; the improvement comprising: a nozzle insert at the valve outlet and having a semi-spherical inner surface providing a continuation of the spherical chamber; the nozzle insert having plurality of cylindrical openings therethrough; each opening having a length greater than its diameter and sized so that the surface tension of the fluent material will prevent dripping therefrom; the nozzle insert being formed of a suitable bearing material to provide a good bearing between the insert and the ball valve element; and means adjustably mounting the nozzle insert for selective movement against the ball valve element to accommodate any wear.
Claim 3
Dependent Claim
15 words
The combination of claim 1 wherein the nozzle insert is formed of graphite impregnated ''''Teflon.''''
Claim 4
Dependent Claim
20 words
The combination of claim 1 wherein the nozzle insert is threaded into the valve outlet to provide said last-mentioned means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |