Expandable hose that reduces the hammering produced in hydraulic

Details Expandable hose that reduces the hammering produced in hydraulic Expandable hose that reduces the hammering produced in hydraulic

1990-07-03

1992-03-10

Bryant, III, James E.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 26, 181255, F16L 5504

Patent

active

050942719

ABSTRACT:
An expandable hose that reduces the hammering produced in hydraulic systems by pumps. A tubular outer section of flexible material has a fitting at each end and loosely accommodates a tubular inner section of flexible material, leaving a hollow space between them. One end of the inner section communicates with one of the fittings, allowing fluid to flow through it, whereas the other end is free and open. A fluid-conveying channel is left between the free end of the inner section and the other fitting. There is a constriction between the inner section and the outer section that separates the tubular channel from the fluid-conveying channel. The wall of the inner section is solid in the vicinity of the tubular channel, so that fluid can enter the tubular channel from the fluid-conveying channel only by way of the constriction. The position of the constriction dictates the ratio of the capacity of the tubular channel to that of the fluid-conveying channel in terms of frequency.

REFERENCES:
patent: 752175 (1904-02-01), Monnier
patent: 3150689 (1964-09-01), Lieberman
patent: 3215164 (1965-11-01), Szczepanski
patent: 3323305 (1967-06-01), Klees
patent: 3766992 (1973-10-01), Tiraspolsky et al.
patent: 3908788 (1975-09-01), Hammarstedt
patent: 4285534 (1981-08-01), Katayama et al.
patent: 4611633 (1986-09-01), Buchholz et al.
patent: 4762150 (1988-08-01), Kokuryu

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