US3569913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal telephone handset cord
Assignee: BARCLAYSAMERICAN/BUSINESS CREDIT Inc
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Filing: 1969-01-15
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Granted: 1971-03-09
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Expires: 1989-01-15
Abstract
Abstract The universal telephone handset cord of the invention is adaptable for connection with telephones of different design. For use with a saddle-type handset the cord is provided with a removable sleeve for closing the handset cord opening, and one or more removable split ring washers which abut a saddle on the transmitter cup to secure the cord therein. To adapt the cord for use with a stayhook-type handset, the sleeve is removed leaving an underlying bushing to close the smaller cord opening in that type handset; also, the split ring washers which are not needed are removed. Connection with the screw in the handset is made with a stayhook secured to the end of the cord. The cord may also be provided with alternate schemes of color coding for the various telephone designs. This is done by coding the wires of the cord overall in one scheme and then superimposing a second color code scheme over portions of the wires in a manner which leaves the underlying scheme still visible.
Inventors
- 👤 John C Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:07
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0625
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
131 words
A universal telephone handset cord having means at one end for connection with a variety of handsets comprising: A. a bushing having at least a portion with a diameter which will substantially close a first size handset cord opening; B. a removable sleeve secured on said end over said bushing, said sleeve being of a larger diameter than said bushing portion to substantially close a second larger size handset cord opening; C. a stayhook mounted on said end spaced from said bushing portion for securing said cord to a stayhook-type telephone handset; and D. abutment means between said removable sleeve and the hook portion of said stayhook forming an enlarged diameter on said end for cooperating with the transmitter cup saddle of a saddle-type telephone handset to secure said cord thereto.
Claim 2
Dependent Claim
131 words
A universal telephone handset cord having means at one end for connection with a variety of handsets comprising: A. a bushing having at least a portion with a diameter which will substantially close a first size handset cord opening; B. a removable sleeve secured on said end over said bushing, said sleeve being of a larger diameter than said bushing portion to substantially close a second larger size handset cord opening; C. a stayhook mounted on said end spaced from said bushing portion for securing said cord to a stayhook-type telephone handset; and D. abutment means between said removable sleeve and the hook portion of said stayhook forming an enlarged diameter on said end for cooperating with the transmitter cup saddle of a saddle-type telephone handset to secure said cord thereto.
Claim 3
Dependent Claim
45 words
A universal telephone handset cord as defined in claim 1 wherein said abutment means comprises at least one washer removably mounted on said end between said bushing portion and said stayhook, and means securing said washer against axial slippage off the end of said cord.
Claim 4
Dependent Claim
55 words
A universal telephone handset cord as defined in claim 2 wherein said washer is of the slotted ring type and is resiliently mounted over said end between said bushing portion and said stayhook, and including shoulders on a portion of said stayhook to prevent axial slippage of said washer off the end of said cord.
Claim 5
Dependent Claim
29 words
A universal telephone handset cord as defined in claim 3 having two said slotted ring washers mounted resiliently over said end with the open ends thereof substantially oppositely directed.
Claim 6
Dependent Claim
51 words
A universal telephone handset cord as defined in claim 1 wherein the wires thereof are color coded in accordance with one scheme and including identification means which superimpose a second scheme of color coding on at least the wires at the end of said cord which connects with a telephone base.
Claim 7
Dependent Claim
66 words
A universal telephone handset cord as defined in claim 5 wherein said identification means comprise one or more lengths of tubing colored in accordance with said second scheme secured about at least some of said wires which connect said cord with a telephone base, said lengths of tubing being limited in length so as not to completely obscure the color code scheme of the underlying wires.
Claim 8
Dependent Claim
19 words
A universal telephone handset cord as defined in claim 6 wherein said lengths of tubing are of heat-shrinkable material.
Claim 9
Dependent Claim
18 words
A universal telephone handset cord as defined in claim 1 wherein said cord is of the retractile type.
Claim 10
Dependent Claim
151 words
A universal telephone handset cord having means at one end for connection with a variety of handsets comprising: A. a bushing having at least a portion with a diameter which will substantially close a first size handset cord opening; B. a removable sleeve frictionally mounted over said bushing, said sleeve being of a larger diameter than said bushing portion to substantially close a second larger size handset cord opening; C. a stayhook secured on said end spaced from said bushing portion for securing said cord to a stayhook-type telephone handset; D. at least one slotted ring washer resiliently mounted on said end between said bushing portion and said stayhook, said washer being of a diameter to cooperate with the transmitter cup saddle of a saddle-type telephone handset to secure said cord thereto; and E. means on said stayhook to prevent axial slippage of said washer off the end of said cord.
Claim 11
Dependent Claim
151 words
A universal telephone handset cord having means at one end for connection with a variety of handsets comprising: A. a bushing having at least a portion with a diameter which will substantially close a first size handset cord opening; B. a removable sleeve frictionally mounted over said bushing, said sleeve being of a larger diameter than said bushing portion to substantially close a second larger size handset cord opening; C. a stayhook secured on said end spaced from said bushing portion for securing said cord to a stayhook-type telephone handset; D. at least one slotted ring washer resiliently mounted on said end between said bushing portion and said stayhook, said washer being of a diameter to cooperate with the transmitter cup saddle of a saddle-type telephone handset to secure said cord thereto; and E. means on said stayhook to prevent axial slippage of said washer off the end of said cord.
Claim 12
Dependent Claim
80 words
A universal telephone handset cord as defineD in claim 9 wherein the wires thereof are color coded in accordance with one scheme and including identification means colored in accordance with a second scheme of color coding secured to at least some of the wires at the end of said cord which connects with a telephone base, said identification means being limited in their extent of coverage of said wires so as not to completely obscure the underlying color code scheme.
References Cited (Backward Citations)
FR740695A
Cited
US3315040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |