Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
172 words
A self-regulating air register comprising: housing means defining a flow path for air from and air duct, louvre means in the housing means for closing and opening said flow path, a crank arm connected to said louvre means and adapted upon rotation to adjust the louvre means, a shaft mounted for rotation with respect to said housing means, a bi-metallic, temperature-sensitive element connected to said shaft and mounted with respect to the housing means such that it can regulate the angular orientation of the shaft with respect to the housing means, and a lever connected to said shaft and disposed perpendicular thereto, the lever having a slot in which part of said crank arm is captive, the slot including a first portion disposed such that when said part of the crank arm is located therein no crank arm rotation is caused by lever rotation, and a second portion disposed such that when said part of the crank arm is located therein the crank arm is caused to rotate when the lever rotates.
Claim 2
Dependent Claim
172 words
A self-regulating air register comprising: housing means defining a flow path for air from and air duct, louvre means in the housing means for closing and opening said flow path, a crank arm connected to said louvre means and adapted upon rotation to adjust the louvre means, a shaft mounted for rotation with respect to said housing means, a bi-metallic, temperature-sensitive element connected to said shaft and mounted with respect to the housing means such that it can regulate the angular orientation of the shaft with respect to the housing means, and a lever connected to said shaft and disposed perpendicular thereto, the lever having a slot in which part of said crank arm is captive, the slot including a first portion disposed such that when said part of the crank arm is located therein no crank arm rotation is caused by lever rotation, and a second portion disposed such that when said part of the crank arm is located therein the crank arm is caused to rotate when the lever rotates.
Claim 3
Dependent Claim
45 words
The invention claimed in claim 1, in which the first portion of the slot is arcuate and concentric with the axis of said shaft, and in which the second portion of the slot is substantially radially disposed with respect to the axis of said shaft.
Claim 4
Dependent Claim
66 words
The invention claimed in claim 1, in which the louvre means includes a plurality of louvre blades mounted to rotate in tandem about axes parallel with the axis of said shaft, the crank arm being attached to one louvre blade and rotating therewith, said part of the crank arm being spaced from the rotational axis of the louvre blade to which the crank arm is attached.
Claim 5
Dependent Claim
40 words
The invention claimed in claim 2, in which the crank arm, when said end part is located in the first portion of the slot, maintains substantially a single oblique orientation with respect to a radial line from the shaft axis.
Claim 6
Dependent Claim
67 words
The invention claimed in claim 1, in which the said element includes at least one helically configured bi-metallic strip of which one end is affixed to said shaft, and of which the other end is connected to an adjustment member, the latter being capable of assuming selected orientations with respect to the housing means whereby the said other end of the bi-metallic strip is adjustable in orientation.