Audible vibratory reed assembly
First Claim
1. An audible vibratory reed assembly including a housing, a plate-like member having an aperture passing there-through forming a wall of at least one chamber in said housing, a flat reed having elongated side edges and fixed at one narrow end to said plate-like member, the plane of said reed at its fixed end forming an acute angle with the plane of said plate-like member and defining a normal state of rest, said reed adapted to cover a substantial portion of said aperture with its free extension when activated to vibrate by a pressure differential on opposite sides of said plate-like member and means spaced from said fixed one end and adapted to engage a point along one elongated edge of said reed for biasing said reed by angularly distorting said reed from its normal state of rest.
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Accused Products
Abstract
An audible vibratory biased reed assembly having the properties of being activated or commencing vibration upon being subjected to a predetermined energy level. This assembly utilizes a straight, flat, elongated, closed or clapping reed, to produce a clatter or buzzing sound, with the reed being biased through application of a bias force to one edge to distort its flatness adjacent its free extremity. The bias force is applied by an angular transverse bridge which substantially triples the frequency of the mechanical clatter.
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Citations
22 Claims
- 1. An audible vibratory reed assembly including a housing, a plate-like member having an aperture passing there-through forming a wall of at least one chamber in said housing, a flat reed having elongated side edges and fixed at one narrow end to said plate-like member, the plane of said reed at its fixed end forming an acute angle with the plane of said plate-like member and defining a normal state of rest, said reed adapted to cover a substantial portion of said aperture with its free extension when activated to vibrate by a pressure differential on opposite sides of said plate-like member and means spaced from said fixed one end and adapted to engage a point along one elongated edge of said reed for biasing said reed by angularly distorting said reed from its normal state of rest.
- 11. A differential pressure signal device including a housing, an apertured plate-like member dividing said housing into two chambers, apertured means in said housing for exposing one chamber to ambient pressure, means connecting the second chamber to a pressure source lower than said ambient pressure thereby creating a differential in pressure between said two chambers, a resilient elongated flat reed fixed at one end to said plate-like member and adapted to overlie the aperture therein, the plane of said reed at its fixed end forming an acute angle with the plane of said plate-like member and defining a normal state of rest, means positioned relative to said plate-like member and in engagement with one elongated side edge of said reed at a point spaced from the point said reed is fastened to said plate-like member, said latter means biasing said reed from its normal state of rest whereby said reed will vibrate only upon the application of a predetermined differential in pressure between said two chambers.
- 19. A lint filter signal device for audibly reporting the build-up of line in a filtering device by reflecting the differential of pressure across said filtering device, including a housing member divided into two chambers by a plate-like apertured means, said apertured means supporting a resilient vibratory elongated flat reed fixed at one end and capable of covering a substantial portion of said aperture in said plate-like means with its free end when activated to vibrate by a pressure differential between said chambers, the plane of said reed at its fixed end forming an acute angle with the plane of said plate-like member and defining a normal state of rest, means for communicating one chamber of said housing member with the outlet of said lint filter and means for communicating the second chamber with ambient pressure, means positioned relative to said plate-like means for engaging one elongated edge of said flat reed at a point spaced from its fixed end to thereby angularly bias said reed from its normal state of rest to permit its activation only upon application of a predetermined differential in pressure between said two chambers.
Specification