US4953820A — Lamp with retaining ring

Claim 1

Independent Claim 437 words

An adjustable clamp comprising: a first extrusion comprising a body portion with a hole therethrough, an arm extruded along one edge of the body portion extending substantially perpendicular therefrom, and a first pressure pad on the arm; a U-shaped second extrusion comprising a first side, a second side with a hole therethrough, a bight joining the first side to the second side, and a second pressure pad on the first side facing the first pressure pad; a hinge-like retaining structure comprising a first retaining member comprising a surface portion extruded along the body portion of the first extrusion adjacent the edge of the body portion remote from the arm, and a second retaining member extruded along the second extrusion, the second retaining member comprising an integrally extruded web terminating in an integrally extruded bead of greater thickness than the thickness of the web, the web of the second retaining member extending from the second extrusion near the intersection of the second side and the bight and substantially perpendicular to the second side, the other retaining member comprising a pair of integrally extruded portions partially enclosing a channel of larger cross-sectional size than the bead, the integrally extruded portions extending partially together and defining therebetween a gap having a width that is greater than the thickness of the web and less than the thickness of the bead, whereby the bead can be inserted lengthwise into the channel to join the first and second members together, the body portion and the second side thereby comprising juxtaposed members with said second side extending substantially perpenduicular to said arm with the end of said second side being spaced from said arm thereby to provide a space for receiving a workpiece and the hole through the body portion being in alignment with the hole through the second side, the hole through the body portion being a clearance hole located between the first retaining member and the arm and the other of said holes being threaded and located in the second side of the second extrusion, the body portion of the first extrusion facing the second side of the second extrusion being generally flat and substantially coplanar with the deepest part of the channel; a closed loop retaining ring pivotably fastened to the first extrusion; and a bolt comprising a head and a threaded shaft extending through the clearance hole and threadedly engaging the threaded hole to urge the juxtaposed members toward each other, whereby the first and second extrusions pivot relatively to each other about the bead, said arm of said first extrusion and said second side being transversely located and separated.

Claim 2

Dependent Claim 437 words

An adjustable clamp comprising: a first extrusion comprising a body portion with a hole therethrough, an arm extruded along one edge of the body portion extending substantially perpendicular therefrom, and a first pressure pad on the arm; a U-shaped second extrusion comprising a first side, a second side with a hole therethrough, a bight joining the first side to the second side, and a second pressure pad on the first side facing the first pressure pad; a hinge-like retaining structure comprising a first retaining member comprising a surface portion extruded along the body portion of the first extrusion adjacent the edge of the body portion remote from the arm, and a second retaining member extruded along the second extrusion, the second retaining member comprising an integrally extruded web terminating in an integrally extruded bead of greater thickness than the thickness of the web, the web of the second retaining member extending from the second extrusion near the intersection of the second side and the bight and substantially perpendicular to the second side, the other retaining member comprising a pair of integrally extruded portions partially enclosing a channel of larger cross-sectional size than the bead, the integrally extruded portions extending partially together and defining therebetween a gap having a width that is greater than the thickness of the web and less than the thickness of the bead, whereby the bead can be inserted lengthwise into the channel to join the first and second members together, the body portion and the second side thereby comprising juxtaposed members with said second side extending substantially perpenduicular to said arm with the end of said second side being spaced from said arm thereby to provide a space for receiving a workpiece and the hole through the body portion being in alignment with the hole through the second side, the hole through the body portion being a clearance hole located between the first retaining member and the arm and the other of said holes being threaded and located in the second side of the second extrusion, the body portion of the first extrusion facing the second side of the second extrusion being generally flat and substantially coplanar with the deepest part of the channel; a closed loop retaining ring pivotably fastened to the first extrusion; and a bolt comprising a head and a threaded shaft extending through the clearance hole and threadedly engaging the threaded hole to urge the juxtaposed members toward each other, whereby the first and second extrusions pivot relatively to each other about the bead, said arm of said first extrusion and said second side being transversely located and separated.

Claim 3

Dependent Claim 25 words

The adjustable clamp of claim 1 wherein the first extrusion includes a retaining ring receiving channel near the end of the arm opposite the pad.

Claim 4

Dependent Claim 53 words

The adjustable clamp of claim 2 wherein the retaining ring receiving channel is a groove of generally C-shaped cross section with the C ends extending from the first extrusion as relatively narrow lips, at least a portion of the lips being deformed toward one another to capture the retaining ring within the channel.

Claim 5

Dependent Claim 43 words

The adjustable clamp of claim 2 wherein the retaining ring is generally annular in form with the annulus having a generally circular cross-section, the ring deviating along a section thereof to form a straight segment which straight segment is received within the channel.

Claim 6

Dependent Claim 216 words

An adjustable clamp having first and second members joined for limited pivotal relative motion about an axis, the first and second members having first and second pressure pads respectively with the pressure pads moving toward and away from one another as the first and second members are subjected to said relative pivotal motion, and a D-shaped retaining ring pivotably fixed to one of the members, the D-shaped ring including a straight segment and an arcuate segment, both segments being of generally circular cross-sectional configuration, and one of said members including a concave generally cylindrical channel for receiving the straight segment of the D-shaped ring with the ring pivoting about the axis of the cylindrical channel and the axis of said pivotal motion being parallel to the axis of the cylindrical channel, said first member comprising a generally uniform L-shaped cross-sectional configuration with the first pressure pad near one end of the L, a portion of a hinge structure near the other end of the L, and the concave generally cylindrical channel intermediate the L ends, and the second member comprising a generally uniform cross-sectional configuration with the second pressure pad near one end and a second portion of a hinge structure adapted to slidingly mate with the portion of the hinge structure of the first member.

Claim 7

Dependent Claim 216 words

An adjustable clamp having first and second members joined for limited pivotal relative motion about an axis, the first and second members having first and second pressure pads respectively with the pressure pads moving toward and away from one another as the first and second members are subjected to said relative pivotal motion, and a D-shaped retaining ring pivotably fixed to one of the members, the D-shaped ring including a straight segment and an arcuate segment, both segments being of generally circular cross-sectional configuration, and one of said members including a concave generally cylindrical channel for receiving the straight segment of the D-shaped ring with the ring pivoting about the axis of the cylindrical channel and the axis of said pivotal motion being parallel to the axis of the cylindrical channel, said first member comprising a generally uniform L-shaped cross-sectional configuration with the first pressure pad near one end of the L, a portion of a hinge structure near the other end of the L, and the concave generally cylindrical channel intermediate the L ends, and the second member comprising a generally uniform cross-sectional configuration with the second pressure pad near one end and a second portion of a hinge structure adapted to slidingly mate with the portion of the hinge structure of the first member.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-09-03	1994-03-05	1994-09-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-09-03	1998-03-05	1998-09-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-09-03	2002-03-05	2002-09-04	$7700.00	Window Closed / Lapsed

Lamp with retaining ring

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