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US 8,474,321 B2Granted
Lighted gauge
OwnerMichael Seltzerinventor
Life of this patent
Estimating the term…
Abstract
An apparatus includes (a) a dial having a front face with indicia thereon and a transparent face plate and a back surface; and (b) a light source attached to the dial and positioned exterior to the transparent face plate and oriented so as to illuminate the face plate. The apparatus is advantageously used to measure blood pressure under adverse lighting conditions.
Claims16
A device for illuminating a dial of a gauge comprising:
- a) a dial extending along an axis between an upper portion and a base portion, the upper portion being positioned atop the base portion and comprising a first surface including indicia, the first surface extending parallel to the axis;
- b) a cover configured and dimensioned to fit around the upper portion and the base portion of the dial, the cover comprising a second surface extending perpendicular to the axis that covers the first surface;
- c) a light source mounted to the second surface and positioned to face the first surface so as to illuminate the first surface when said cover is fitted around the dial;
- and
- d) a regulator electrically connected to the light source, said regulator switching on said light source either (i) automatically in response to actuation of the gauge, or (ii) manually in response to actuation of a regulator first switch associated with said regulator.
2 more elements
An apparatus having a lighted gauge which comprises:
- a) a dial having a front surface with indicia thereon, a transparent face plate covering the front surface and a back surface opposite the front surface;
- and
- b) a light source positioned exterior to the transparent face plate and oriented to face the front surface so as to illuminate the front surface;
- c) a regulator electrically connected to the light source, and a fluid conduit connected to both the dial and the regulator;
- d) wherein said apparatus is a sphygmomanometer and the fluid conduit is connected to an inflatable arm cuff;
- e) wherein a pressure source is connected to an end of the conduit for pressurizing the inflatable arm cuff;
- f) wherein the regulator includes a toggle switch movable between a first position and a second position, and a push-button switch movable between an on position and an off position, wherein the light source is activated (1) when the toggle switch is in the first position and the arm cuff is pressurized, or (2) when the toggle switch is in the second position and the push button switch is in the on position.
4 more elements
A method for measuring the blood pressure comprising:
- a) providing an apparatus including,
- i. a dial having a first surface with indicia thereon and a transparent face plate covering the first surface,
- ii. a light source positioned exterior to the transparent face plate and oriented to face the first surface so as to illuminate the first surface,
- iii. a regulator electrically connected to the light source, and a fluid conduit connected to both the dial and the regulator, wherein the regulator includes a toggle switch movable between a first position and a second position, and a push-button switch movable between an on position and an off position, wherein the light source is activated (1) when the toggle switch is in the first position and the arm cuff is pressurized, or (2) when the toggle switch is in the second position and the push button switch is in the on position,
- iv. an inflatable arm cuff, and
- v. a pressure source connected to an end of the conduit for pressurizing the inflatable arm cuff;
- b) wrapping the inflatable arm cuff around an arm of a patient;
- c) moving the toggle switch to either the first position or the second position;
- d) pressurizing the inflatable arm cuff;
- and
- e) illuminating and viewing the dial.
8 more elements
Dependencies are inferred from the claim text.