Patent US3271816A successfully refreshed from Google Patents.
Patent US3628736A successfully refreshed from Google Patents.
US3628736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid supply nozzles
Assignee: CAV Ltd
•
Filing: 1970-02-24
•
Granted: 1971-12-21
•
Expires: 1990-02-24
Abstract
Abstract A liquid supply nozzle including a valve member which is movable by the action of fluid under pressure within a chamber to permit such fluid to flow through an outlet orifice, the valve member being resiliently loaded by means of a spring and the spring being formed from tube and serving to convey the fluid under pressure to the aforesaid chamber.
Inventors
- 👤 Dorian Farrar Mowbray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:39
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/042; F02M61/045; F02M61/16; F02M61/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A liquid fuel supply nozzle for an internal combustion engine and comprising a nozzle head and a nozzle body to which the head is secured, an orifice formed in the head, a chamber formed in the head and communicating with said orifice, a valve member slidable in the head for controlling the flow of liquid from the chamber through the orifice, resilient means acting to urge the valve member to a position in which the flow of liquid through the orifice is prevented, an inlet for liquid under pressure, a coiled compression spring constituting said resilient means, said coiled compression spring being formed from tube, said tubeforming part of a flow path of liquid from said inlet to said chamber, said liquid under pressure in the chamber acting to move the valve member away from said position against the action of the spring, thereby to permit the flow of liquid through said orifice.
Claim 2
Dependent Claim
153 words
A liquid fuel supply nozzle for an internal combustion engine and comprising a nozzle head and a nozzle body to which the head is secured, an orifice formed in the head, a chamber formed in the head and communicating with said orifice, a valve member slidable in the head for controlling the flow of liquid from the chamber through the orifice, resilient means acting to urge the valve member to a position in which the flow of liquid through the orifice is prevented, an inlet for liquid under pressure, a coiled compression spring constituting said resilient means, said coiled compression spring being formed from tube, said tubeforming part of a flow path of liquid from said inlet to said chamber, said liquid under pressure in the chamber acting to move the valve member away from said position against the action of the spring, thereby to permit the flow of liquid through said orifice.
Claim 3
Dependent Claim
48 words
A nozzle as claimed in claim 1 including a passage in the valve member, one end of the tube forming the spring being secured to said valve member so that the interior of the tube communicating with said passage and the passage forms part of said flow path.
Claim 4
Dependent Claim
73 words
A nozzle as claimed in claim 2 in which said body is hollow, and including means for securing the nozzle head to one end of said body, a plug engaged within the other end of said body, said plug defining said inlet, and the other end of said tube being secured to said plug and passage means through which the interior of the body is in communication with the exterior of the body.
Claim 5
Dependent Claim
47 words
A nozzle as claimed in claim 3 in which said means for securing the nozzle head to the body part comprises a retaining member which is in screw-thread engagement with the body part and which defines a lip for engagement with a step on the nozzle head.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |