Patent US3879571A successfully refreshed from Google Patents.
US3879571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable mount for speaker installation
Assignee: Individual
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Filing: 1973-05-07
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Granted: 1975-04-22
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Expires: 1993-05-07
Abstract
Abstract A system for mechanically connecting a communication cable to a speaker so that the electrical connection of the cable to the speaker is not damaged or broken by pulling forces on the cable utilizes a plurality of spaced cable-retaining brackets within the housing to establish a succession of reverse bends in the cable whereby a pulling force on the cable is transmitted directly into and absorbed by the speaker housing and does not affect the electrical connection.
Inventors
- 👤 Samuel M Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/06; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0625; H02G3/0633
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
349 words
In a speaker system wherein a communication cable is inserted through an opening into a hollow speaker housing and is connected at one end to a contact terminal on an interior wall of said housing opposite to the opening, the improvement comprising first retention means projecting inwardly from an inner wall surface of said speaker housing adjacent to the opening and adapted to form a first reverse bend in the cable as it enters the housing, second retention means spaced inwardly from the wall surface of said speaker housing in adjacent spaced relation to the first retention means and on a side of the first retention means opposite to the opening, said communication cable undergoing a first reverse bend around said first retention means as it enters the housing through the opening and undergoing a second reverse bend around said second retention means substantially at 180* to the direction of the first reverse bend, and third retention means on the inner wall surface of said speaker housing substantially at 90* to said first retention means adapted to retain the cable, said cable undergoing a third reverse bend around said third retention means substantially at 180* to the second bend in the cable, whereby pulling force applied to the cable will be absorbed by the housing to prevent said pulling force from separating the cable from its connection to said contact terminal. said first, second and third bracket means in cooperation with said cable forming two mutually perpendicular substantially S-shaped configurations in the cable such that pulling forces applied to the cable exteriorally of said housing will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal; said housing comprising two releasable half sections split along a plane intersecting the top portion of said open notches of first, second and third brackets, said first half section containing said first, second and third brackets and said second half section having substantially thicker walls to generally cover said open U-shaped notches of said brackets thereby wedging said cable into said notches.
Claim 2
Dependent Claim
349 words
In a speaker system wherein a communication cable is inserted through an opening into a hollow speaker housing and is connected at one end to a contact terminal on an interior wall of said housing opposite to the opening, the improvement comprising first retention means projecting inwardly from an inner wall surface of said speaker housing adjacent to the opening and adapted to form a first reverse bend in the cable as it enters the housing, second retention means spaced inwardly from the wall surface of said speaker housing in adjacent spaced relation to the first retention means and on a side of the first retention means opposite to the opening, said communication cable undergoing a first reverse bend around said first retention means as it enters the housing through the opening and undergoing a second reverse bend around said second retention means substantially at 180* to the direction of the first reverse bend, and third retention means on the inner wall surface of said speaker housing substantially at 90* to said first retention means adapted to retain the cable, said cable undergoing a third reverse bend around said third retention means substantially at 180* to the second bend in the cable, whereby pulling force applied to the cable will be absorbed by the housing to prevent said pulling force from separating the cable from its connection to said contact terminal. said first, second and third bracket means in cooperation with said cable forming two mutually perpendicular substantially S-shaped configurations in the cable such that pulling forces applied to the cable exteriorally of said housing will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal; said housing comprising two releasable half sections split along a plane intersecting the top portion of said open notches of first, second and third brackets, said first half section containing said first, second and third brackets and said second half section having substantially thicker walls to generally cover said open U-shaped notches of said brackets thereby wedging said cable into said notches.
Claim 3
Dependent Claim
349 words
In a speaker system wherein a communication cable is inserted through an opening into a hollow speaker housing and is connected at one end to a contact terminal on an interior wall of said housing opposite to the opening, the improvement comprising first retention means projecting inwardly from an inner wall surface of said speaker housing adjacent to the opening and adapted to form a first reverse bend in the cable as it enters the housing, second retention means spaced inwardly from the wall surface of said speaker housing in adjacent spaced relation to the first retention means and on a side of the first retention means opposite to the opening, said communication cable undergoing a first reverse bend around said first retention means as it enters the housing through the opening and undergoing a second reverse bend around said second retention means substantially at 180* to the direction of the first reverse bend, and third retention means on the inner wall surface of said speaker housing substantially at 90* to said first retention means adapted to retain the cable, said cable undergoing a third reverse bend around said third retention means substantially at 180* to the second bend in the cable, whereby pulling force applied to the cable will be absorbed by the housing to prevent said pulling force from separating the cable from its connection to said contact terminal. said first, second and third bracket means in cooperation with said cable forming two mutually perpendicular substantially Sshaped configurations in the cable such that pulling forces applied to the cable exteriorally of said housing will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal; said housing comprising two releasable half sections split along a plane intersecting the top portion of said open notches of first, second and third brackets, said first half section containing said first, second and third brackets and said second half section having substantially thicker walls to generally cover said open U-shaped notches of said brackets thereby wedging said cable into said notches.
Claim 4
Dependent Claim
349 words
In a speaker system wherein a communication cable is inserted through an opening into a hollow speaker housing and is connected at one end to a contact terminal on an interior wall of said housing opposite to the opening, the improvement comprising first retention means projecting inwardly from an inner wall surface of said speaker housing adjacent to the opening and adapted to form a first reverse bend in the cable as it enters the housing, second retention means spaced inwardly from the wall surface of said speaker housing in adjacent spaced relation to the first retention means and on a side of the first retention means opposite to the opening, said communication cable undergoing a first reverse bend around said first retention means as it enters the housing through the opening and undergoing a second reverse bend around said second retention means substantially at 180* to the direction of the first reverse bend, and third retention means on the inner wall surface of said speaker housing substantially at 90* to said first retention means adapted to retain the cable, said cable undergoing a third reverse bend around said third retention means substantially at 180* to the second bend in the cable, whereby pulling force applied to the cable will be absorbed by the housing to prevent said pulling force from separating the cable from its connection to said contact terminal. said first, second and third bracket means in cooperation with said cable forming two mutually perpendicular substantially Sshaped configurations in the cable such that pulling forces applied to the cable exteriorally of said housing will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal; said housing comprising two releasable half sections split along a plane intersecting the top portion of said open notches of first, second and third brackets, said first half section containing said first, second and third brackets and said second half section having substantially thicker walls to generally cover said open U-shaped notches of said brackets thereby wedging said cable into said notches.
Claim 5
Dependent Claim
51 words
In the speaker system of claim 1 wherein said first bend in the cable is greater than 90* but no greater than 180*, said second bend in the cable is greater than 180* but no greater than 270*, and said third bend in the cable is greater than a 90* bend.
Claim 6
Dependent Claim
21 words
In the speaker system of claim 2 wherein said third bend in the cable is not greater than a 180* bend.
Claim 7
Dependent Claim
48 words
In the speaker system of claim 1, further including fourth retention means on an inner surface of said speaker housing adapted to retain the cable, said cable undergoing a fourth bend in the around said fourth retention means substantially at 180* to the third bend in the cable.
Claim 8
Dependent Claim
20 words
In the speaker system of claim 3 wherein said fourth bend in the cable is greater than a 90* bend.
Claim 9
Dependent Claim
21 words
In the speaker system of cLaim 5 wherein said fourth bend in the cable is not greater than a 180* bend.
Claim 10
Dependent Claim
142 words
In a system wherein an electrical cable is inserted through an opening in a hollow housing and is connected at its free end to a contact terminal on an inner wall of said housing, the improvement comprising a plurality of spaced cable retention means mounted on the inner surface of said housing including a pair of cable retention means in opposed facing relation to one another, each of said cable retention means having clip means for retaining said cable in place within the hollow housing, said cable undergoing a succession of reverse bends through said cable retention means defining two mutually perpendicular substantially S-shaped configurations between the opening and the contact terminal such that pulling forces applied to the cable will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal.
Claim 11
Dependent Claim
142 words
In a system wherein an electrical cable is inserted through an opening in a hollow housing and is connected at its free end to a contact terminal on an inner wall of said housing, the improvement comprising a plurality of spaced cable retention means mounted on the inner surface of said housing including a pair of cable retention means in opposed facing relation to one another, each of said cable retention means having clip means for retaining said cable in place within the hollow housing, said cable undergoing a succession of reverse bends through said cable retention means defining two mutually perpendicular substantially S-shaped configurations between the opening and the contact terminal such that pulling forces applied to the cable will be absorbed by the housing to prevent the pulling forces from separating the cable from its connection to said contact terminal.
Claim 12
Dependent Claim
299 words
In a speaker system adapted for use in drive-in theatres wherein a communication cable inserted through an opening in a hollow speaker housing is connected at one end to an interior contact terminal, the improvement comprising: a retention post substantially semi-cylindrical in shape, said retention post disposed on the inner surface of a first wall of said housing adjacent to said opening, said cable undergoing a first substantially 180* bend generally conforming to the semi-cylindrical surface of said retention post; first cable retaining means on the inner surface of said first wall adjacent to and spaced from the said retention post on the side of said retention post opposite said opening, said cable disposed in tight-fitting engagement with said first retaining means and undergoing a second substantially 180* bend oppositely curved to said first bend; second cable retaining means on the inner surface of a second wall in the housing perpendicular to said first wall, said second retaining means being spaced from said first retaining means and said cable disposed in tight-fitting engagement with said second retaining means and undergoing a third substantially 180* bend to form in relation with said second bend a generally S-shaped curve; third cable retaining means on the inner surface of a third wall in the housing peripendicular to said second wall, and opposite said first wall, said third retaining means being disposed adjacent to said interior contact terminal, said cable disposed in tight-fitting engagement with said third retaining means and undergoing a fourth substantially 180* bend curving oppositely to said third bend; and said first, second and third retaining means in cooperation with said retention post and said housing absorbing pulling forces applied to said cable from exteriorally of said housing to prevent said cable from being separated from said interior contact terminal.
Claim 13
Dependent Claim
299 words
In a speaker system adapted for use in drive-in theatres wherein a communication cable inserted through an opening in a hollow speaker housing is connected at one end to an interior contact terminal, the improvement comprising: a retention post substantially semi-cylindrical in shape, said retention post disposed on the inner surface of a first wall of said housing adjacent to said opening, said cable undergoing a first substantially 180* bend generally conforming to the semi-cylindrical surface of said retention post; first cable retaining means on the inner surface of said first wall adjacent to and spaced from the said retention post on the side of said retention post opposite said opening, said cable disposed in tight-fitting engagement with said first retaining means and undergoing a second substantially 180* bend oppositely curved to said first bend; second cable retaining means on the inner surface of a second wall in the housing perpendicular to said first wall, said second retaining means being spaced from said first retaining means and said cable disposed in tight-fitting engagement with said second retaining means and undergoing a third substantially 180* bend to form in relation with said second bend a generally S-shaped curve; third cable retaining means on the inner surface of a third wall in the housing peripendicular to said second wall, and opposite said first wall, said third retaining means being disposed adjacent to said interior contact terminal, said cable disposed in tight-fitting engagement with said third retaining means and undergoing a fourth substantially 180* bend curving oppositely to said third bend; and said first, second and third retaining means in cooperation with said retention post and said housing absorbing pulling forces applied to said cable from exteriorally of said housing to prevent said cable from being separated from said interior contact terminal.
Claim 14
Dependent Claim
28 words
In the cable mount apparatus of claim 8 wherein said first, second and third cable retaining means are structurally cast into said first, second and third walls respectively.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |