Combination torch and check valve assembly

Details Combination torch and check valve assembly Combination torch and check valve assembly

1980-07-14

1981-09-01

Nilson, Robert G.

Fluid handling

Removable valve head and seat unit

1375147, 13754319, 137606, 1376142, 2394162, F16K 1900

Patent

active

042866200

ABSTRACT:
A torch combination characterized by a torch handle having a body, barrel and head with at least fuel and oxygen passageways and at least fuel and oxygen valves and an improvement comprising respective check valve bodies disposed in fluid communication with respective fuel and oxygen passageways and connected with a torch handle and having check valve subassemblies received in chambers in each. The two respective check valves subassemblies include a guide having a retainer disposed in one end thereof. The retainer has a seal adjacent its interior end with a moveable seat biased thereagainst inside the guide. Respective first and second means hold guide and retainer together and hold the check valve subassembly within the chambers. Hose connectors are connected with respective fuel and oxygen passageways such that the check valve subassembly block any reverse flow into the hoses and regulators and prevent danger of explosion.

REFERENCES:
patent: 1246573 (1917-11-01), Fauser
patent: 2084294 (1937-06-01), Cooper
patent: 2649277 (1953-08-01), Blackford
patent: 2800142 (1957-07-01), Champion
patent: 3058486 (1962-10-01), McDermott
patent: 3626977 (1971-12-01), Riley

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