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US 2013/0200173 A1Published application
Fluid sprayer attachment
AssigneeBriggs & Stratton Corporation
InventorsRobert R. Wolfgram, Brian R. Olsson
Life of this patent
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Abstract
An attachment for a fluid sprayer comprises a main flow passage, a quick disconnect portion that facilitates connection of the attachment to a first flow constrictor providing flow at a first pressure and a second flow constrictor between the main flow passage and the quick disconnect portion. The second flow constrictor provides flow at a second pressure less than the first pressure.
Claims22
An apparatus comprising:
- an attachment for a fluid sprayer, the attachment comprising:
- a main flow passage;
- a quick disconnect portion to facilitate connection of a supplemental attachment having a first flow constrictor, the first flow constrictor providing a first pressure drop;
- and
- a second flow constrictor located so as to be between the main flow passage and the first flow constrictor, the second flow constrictor providing a second pressure drop less than the first pressure drop.
2 more elements
A method comprising:
- passing liquid from a pressure washer through a wand and through a first flow constrictor comprising an asymmetric orifice;
- and
- passing the liquid that has passed through the asymmetric orifice through a quick disconnect coupled to the flow constrictor.
An apparatus comprising:
- a source of pressurized liquid;
- a wand connected to the source of pressurized liquid;
- an integrally formed unitary and homogenous tubular body mounted to an end of the wand, the tubular body comprising:
- a first end portion connected to the end of the wand;
- a second end portion forming part of a quick disconnect assembly for attaching different nozzles to the wand;
- and
- an asymmetric orifice between the first end portion and the second end portion.
4 more elements
Dependencies are inferred from the claim text.