Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
207 words
For use in connection with a rotary piston compressor having a recess in its peripheral wall and also having an opening in the peripheral housing portion of said compressor and extending substantially parallel to the axis of said peripheral housing portion, a delivery valve, which includes: a curved sleeve forming a valve seat and provided with tangentially directed valve slots, said sleeve being adapted to be fitted into said opening, a first component having a horseshoe shaped cross section and over its entire length being received within said sleeve, said first component having a closed side facing said valve slots and having a larger radius of curvature than said sleeve, said first component also having outwardly bent back flanges and lateral flanks, both said flanges and said flanks bearing against said sleeve, said first component having in its flanks tangentially directed rectangular lateral openings, and a second component comprising a resilient sheet metal plate having cutout portions and parallel strip-shaped portions guided in said rectangular lateral openings, the marginal portions of said sheet metal plate being located in said flanges of said first component, the arrangement being such that in use said parallel strip-shaped portions engage said sleeve and cover said slots when the valve is closed.
Claim 2
Dependent Claim
207 words
For use in connection with a rotary piston compressor having a recess in its peripheral wall and also having an opening in the peripheral housing portion of said compressor and extending substantially parallel to the axis of said peripheral housing portion, a delivery valve, which includes: a curved sleeve forming a valve seat and provided with tangentially directed valve slots, said sleeve being adapted to be fitted into said opening, a first component having a horseshoe shaped cross section and over its entire length being received within said sleeve, said first component having a closed side facing said valve slots and having a larger radius of curvature than said sleeve, said first component also having outwardly bent back flanges and lateral flanks, both said flanges and said flanks bearing against said sleeve, said first component having in its flanks tangentially directed rectangular lateral openings, and a second component comprising a resilient sheet metal plate having cutout portions and parallel strip-shaped portions guided in said rectangular lateral openings, the marginal portions of said sheet metal plate being located in said flanges of said first component, the arrangement being such that in use said parallel strip-shaped portions engage said sleeve and cover said slots when the valve is closed.
Claim 3
Dependent Claim
31 words
A delivery valve according to claim 1, in which said first component has further central openings in said closed side, said central openings being offset with respect to said lateral openings.
Claim 4
Dependent Claim
37 words
A delivery valve according to claim 1, in which said sleeve has at its marginal portions inwardly bent tongues facing the ends of the bent-back flanges of said first component to secure said first component in position.
Claim 5
Dependent Claim
45 words
A delivery valve according to claim 1, in which said sleeve has at one of its marginal portions an outwardly bent lug adapted to engage in said recess in the peripheral wall of the compressor to secure the valve against rotation relative to the opening.
Claim 6
Dependent Claim
16 words
A delivery valve according to claim 1, wherein the sleeve is longitudinally split and spring-urged outwards.
Claim 7
Dependent Claim
24 words
A delivery valve according to claim 1, wherein the valve is adapted to be retained in position in the opening by a screwed cover.
Claim 8
Dependent Claim
18 words
A delivery valve according to claim 1, wherein the first component is a stamped and curved metal sheet.