US5018185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamperproof pay telephone
Assignee: Individual
•
Filing: 1990-03-21
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Granted: 1991-05-21
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Expires: 2010-03-21
Abstract
Abstract A tamperproof pay telephone is disclosed. The tamperproof pay telephone includes a main portion having an upper coin housing portion with an upper coin housing wall, a handset, a cord connecting the handset to the upper coin housing wall of the upper coin housing portion of the main portion, and an attachment assembly for securing the cord to the upper coin housing wall, the cord including an inner tube liner, four telephone wires of which one is a power wire, the four telephone wires passing through the inner tube liner, the inner tube of stainless steel wire braided rope which is ultimately encased in a stainless steel armored hose so that the inner tube of stainless steel wire braided rope adds flexibility while adding protection by rolling when a cut to the cord is attempted, the inner tube of the stainless steel wire braided rope prevents the cutting open of the stainless steel armored hose in order to prevent access to the wires, as well as, preventing the twisting of the handset that would cause the stainless steel armored hose to unwind.
Inventors
- 👤 Robert Riddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
H; H04; H04M; H04M17/00; H04M17/02; H04M17/026; H04M1/00; H04M1/02; H04M1/15
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
194 words
A tamperproof pay telephone comprising: (a) a main portion having an upper coin housing portion with an upper coin housing wall; (b) a handset; (c) a cord connecting said handset to said upper coin housing wall of said upper coin housing portion of said main portion; and (d) an attachment assembly for securing said cord to said upper coin housing wall, said cord including an inner tube liner, an inner tube of a stainless steel wire braided rope, four telephone wires of which one is a power wire, said four telephone wires passing through said inner tube liner, said inner tube of said stainless steel wire braided rope which is ultimately encased in a stainless steel armored hose so that said inner tube of said stainless steel wire braided rope adds flexibility while adding protection by rolling when a cut to said cord is attempted, said inner tube of said stainless steel wire braided rope prevents the cutting open of said stainless steel armored hose in order to prevent access to said four telephone wires, as well as, preventing the twisting of said handset that would cause said stainless steel armored hose to unwind.
Claim 2
Dependent Claim
194 words
A tamperproof pay telephone comprising: (a) a main portion having an upper coin housing portion with an upper coin housing wall; (b) a handset; (c) a cord connecting said handset to said upper coin housing wall of said upper coin housing portion of said main portion; and (d) an attachment assembly for securing said cord to said upper coin housing wall, said cord including an inner tube liner, an inner tube of a stainless steel wire braided rope, four telephone wires of which one is a power wire, said four telephone wires passing through said inner tube liner, said inner tube of said stainless steel wire braided rope which is ultimately encased in a stainless steel armored hose so that said inner tube of said stainless steel wire braided rope adds flexibility while adding protection by rolling when a cut to said cord is attempted, said inner tube of said stainless steel wire braided rope prevents the cutting open of said stainless steel armored hose in order to prevent access to said four telephone wires, as well as, preventing the twisting of said handset that would cause said stainless steel armored hose to unwind.
Claim 3
Dependent Claim
48 words
A telephone as defined in claim 1, wherein said cord has a handset end and an upper coin housing wall end, said handset end having a handset fitting permanently swagged thereon and said upper coin housing wall end having an upper coin housing wall fitting permanently swagged thereon.
Claim 4
Dependent Claim
44 words
A telephone as defined in claim 2, wherein said handset fitting includes a substantially cylindrical body portion having a free end onto which an outer circular flange is disposed and an inner circular flange is displaced a distance inward from said outer circular flange.
Claim 5
Dependent Claim
26 words
A telephone as defined in claim 3; further comprising a "U"-shaped connector disposed within said handset and holding said handset end of said cord in place.
Claim 6
Dependent Claim
47 words
A telephone as defined in claim 4, wherein said upper coin housing wall fitting includes a substantially cylindrical body portion having a free end onto which an outer circular flange is disposed and an inner circular flange is displaced a distance inward from said outer circular flange.
Claim 7
Dependent Claim
38 words
A telephone as defined in claim 5; further comprising an attachment assembly affixed to said upper coin housing wall of said upper coin housing portion and holding said upper coin housing wall end of said cord in place.
Claim 8
Dependent Claim
25 words
A telephone as defined in claim 6, wherein said attachment assembly includes a plate, a removable offset "U"-clamp, an affixing screw, and a mounting screw.
Claim 9
Dependent Claim
46 words
A telephone as defined in claim 7, wherein said plate contains a lower recess which contains a throughbore through which said mounting screw passes and mounts said plate to said upper coin housing wall, said plate further containing a wire passageway through which said wires pass.
Claim 10
Dependent Claim
46 words
A telephone as defined in claim 8, wherein said removable offset "U"-clamp includes a tail portion, an offset portion, and a "U"-channel portion, said "U"-channel portion containing a "U"-shaped cutout and a throughbore through which said affixing screw passes and affixes said "U"-clamp to said plate.
Claim 11
Dependent Claim
36 words
A telephone as defined in claim 9, wherein said "U"-shaped cutout of said "U"-channel portion is disposed within said upper coin housing portion and holding said upper coin housing wall end of said cord in place.
Claim 12
Dependent Claim
14 words
A telephone as defined in claim 1, wherein said inner tube liner is brass.
Claim 13
Dependent Claim
14 words
A telephone as defined in claim 1, wherein said inner tube liner is plastic.
Claim 14
Dependent Claim
13 words
A telephone as defined in claim 4, wherein said "U"-shaped connector is metallic.
References Cited (Backward Citations)
US4845774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |