What is claimed is:
1. An air intake assembly for an internal combustion engine, said air intake assembly comprising a tubular section having a collection portion, an inlet portion adapted for being connected to an air filter, and an integral air delivery section including a casing molded in one piece with said tubular section and extending perpendicularly thereto and a throttle valve unit inserted into said casing, said casing having a rotationally symmetrical contour, said throttle valve unit including a body, a shaft supported by said body for rotation about an axis extending perpendicular to said tubular section, and a throttle valve secured to said shaft, said body having a bore in which said throttle valve is disposed to control admission of air to said inlet portion via said bore, said bore extending perpendicularly to said axis of rotation of said shaft, said inlet portion and said bore having substantially equal diameters, said casing of said air delivery section and said body of said throttle valve unit being of complementary tapered shape so as to conform to one another when said throttle valve unit is inserted into said casing of said air delivery section.
2. The air intake assembly according to claim 1, comprising elastic seals between said body and said casing to seal the body in said casing when the throttle valve unit is inserted into said casing.
3. The air intake assembly according to claim 1, wherein said casing has an opening aligned with said bore when said throttle valve unit is inserted into said casing, said casing having O-ring seals surrounding said opening which are elastically deformed by said body of said throttle valve unit upon its insertion into said casing of said air delivery section.
4. The air intake assembly according to claim 3, wherein said O-ring seals are spaced apart from one another.
5. The air intake assembly according to claim 3, wherein said O-ring seals are placed in grooves provided in said casing of said air delivery section.
6. The air intake assembly according to claim 3, wherein said casing is provided with grooves into which material is injected and cured to form said O-ring seals.
7. The air intake assembly according to claim 1, wherein said air delivery section includes a stop against which said throttle valve unit bears when inserted into position in said air delivery section.
8. The air intake assembly according to claim 7, wherein said complementary portions of said casing and said body are spaced apart by a determined spacing when the throttle valve unit is inserted bears against said stop, and seal rings between said casing and said body which are elastically deformed when said throttle valve body is inserted into said casing and bears against said stop.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A survey markeer, comprising:
a head comprising a convex upper surface and a concave lower surface, said head including a first aperture comprising means for aligning said head in a selected direction, means for engaging a drive tool for rotating said head, means for positioning a surveying instrument, and an aperture for retaining a survey rod therein; and
a rod affixed to said center of said concave lower surface of said head, said rod having a pointed tip and at least one section of auger flights at a selected location thereon spaced apart from said tip and spaced apart from said head.
2. The survey marker of claim 1, wherein said flight extends around said rod 360 degrees;
3. The survey marker of claim 1, wherein a front edge of said flight is spaced apart from and in vertical alignment with a rear edge of said flight.
4. The survey marker of claim 1, wherein said flight has an inner edge connecting to said rod and said rear edge of said flight extends outwardly from said rod normal thereto and said front end of said flight extends downwardly at a selected angle.