US3657652A - Inter-compartment coupling device - Google Patents

Inter-compartment coupling device Download PDF

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Publication number
US3657652A
US3657652A US885773A US3657652DA US3657652A US 3657652 A US3657652 A US 3657652A US 885773 A US885773 A US 885773A US 3657652D A US3657652D A US 3657652DA US 3657652 A US3657652 A US 3657652A
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United States
Prior art keywords
partition
compartments
antenna
improving
ship
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US885773A
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English (en)
Inventor
Harry R Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MACKAY COMMUNICATIONS Inc CELWAVE SYSTEMS Inc PO BOX 39 CLARMONT NC 28610-0039 A CORP OF
U S Holding Co Inc
Alcatel USA Corp
Original Assignee
Deutsche ITT Industries GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche ITT Industries GmbH filed Critical Deutsche ITT Industries GmbH
Application granted granted Critical
Publication of US3657652A publication Critical patent/US3657652A/en
Assigned to ITT CORPORATION reassignment ITT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
Assigned to U.S. HOLDING COMPANY, INC., C/O ALCATEL USA CORP., 45 ROCKEFELLER PLAZA, NEW YORK, N.Y. 10111, A CORP. OF DE. reassignment U.S. HOLDING COMPANY, INC., C/O ALCATEL USA CORP., 45 ROCKEFELLER PLAZA, NEW YORK, N.Y. 10111, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE 3/11/87 Assignors: ITT CORPORATION
Assigned to MACKAY COMMUNICATIONS, INC., CELWAVE SYSTEMS, INC., P.O. BOX 39, CLARMONT, NC 28610-0039 A CORP. OF NC reassignment MACKAY COMMUNICATIONS, INC., CELWAVE SYSTEMS, INC., P.O. BOX 39, CLARMONT, NC 28610-0039 A CORP. OF NC ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: U.S. HOLDING COMPANY, INC.
Assigned to ALCATEL USA, CORP. reassignment ALCATEL USA, CORP. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: U.S. HOLDING COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism

Definitions

  • ABSTRACT Inter-compartment coupling devices are described for improving on-board communications for large ships.
  • the described devices permit efficient electrical coupling between compartments so that communications by hand-held transceivers is possible.
  • the couplers described include a slot antenna, loop and monopole antennas which interconnect the various areas on either side of a partition or deck.
  • this invention relates to inter-compartment coupling devices, and more particularly to inter-compartment coupling devices which improve onboard communicationsfor large ships by introducing efficient electrical coupling between the compartments.
  • each cabin, passageway, hold, or tank can be considered to be a cavity, infthe radio or electrical sense of the word, and each such cavity is coupled haphazardly to the next andto the outside area'on'the decko'f the ship through cracks, portholes, ventilation ducts, a'ndthe like.
  • FIG. 1 schematically represents a ship having inter-compartmentcoupling devices installed within its partitions
  • FIG. 2 illustrates a type'coupler which may be utilized as an inter-compartment coupling device
  • FIG. 3 illustrates another inter-compartment coupling device which may be incorporated to-affect the electrical coupling between various compartments; and
  • FIG. 4 illustrates still another inter-compartment couplin device which may be utilized to connect the areas on either side of a partition.
  • FIG. I there is illustrated a typical tanker or cargo ship 11. Installed in the partitions'lz'separating the various compartments or chambers*l3, and the various cabins 14 and top areas 15 of the ship, coupling devices 16 which are more fully described in connection with FIGS. 2 through 3.
  • the purpose of the arrangement as shown in FIG. I is topermit communications between transceivers'of the type known as walkie-talkies having a small power. If, for example, there'is randomly located transceivers at pointsA, B, C in the chambers or cabins indicated, the coupling devicesil6 provide an efficient path for electrical radio energy between one chamber or a number of chambers. Thereby, clear and inexpensive radio communications can be maintained at all times between any parts of the ship.
  • the insulation- can be any solid type of insulation such as t'eflon,-glass impregnated 'epoxys,'etc.,-'the type selected, as'should be'evident to one herein described a means for communicating from one compartment to another on shipboard, using conventional handheld receivers to overcome the shielding effects of metallic construction of the ship, the coupling arrangements described herein can as easily be used in any place where communication is desired between any chambers which require overcoming shielding effects of the electrical interference partitions or walls which interconnect the various chambers through which communication is desired.
  • FIG. 2 there is illustrated a coupler which is a simple slot antenna 21 cut in the partition 22 which separates two compartments.
  • the width 23 of the slot antenna is equal to the width ofthe partition, and the long length 24 of the antenna slot is equal to the one-half wave length at the frequency of operation of the transceiver.
  • the height 75 of the slot antenna- is not critical, but it should not be less than onehalf inch. A range, for example, is V. to 2 /2 inches.
  • the coupler '21 which may be utilized and designed into the partitions 12 interconnecting the various compartments of the ship as shown in FIG. 1. However, it
  • FIG. 3 there is shown a coupler which operates on a similar principle to that of the slot antenna except that the pickup and'reradiation is accomplished by means of a directly connected mono-pole antenna 31.
  • the length-32 of the radiator 33 as measured from the face of its support is one-quarter'of a wave length at the frequency of operation.
  • the coupler comprises two loops 42, 42a, on'either side of the partition 43 andconductively connected together.
  • This device is also simple and inexpensive to install since it only requires drilling a hole 44 and then fasteningby' means of a single nut 45. Coupling is accomplished by the radio field on one side of the partition inducing currents in the loops which causes radiation on the other side of the partition.
  • the loop may be, for instance, made of .wire or rod'of suitable strength.
  • the overall length 46 of the loop should be such that resonance occurs at-the frequency of operation of the transceivers, 'and roughly half this length '47, should extend on either side of the partition-as shownnLoo'ps withsmaller dimensions will operate with reduced “efficiency. "As indicated in FIG. 3 the support member48 comprises a solid-insulation contained in a metallic threaded member 50. This configuration permits fixing to the wall. Also included would be the required sealing in area 51 to maintain cargo integrity between the compartments on either side of the partition.
  • the loop antenna 41 as shown, combines a solid insulation and a metallic nut and thread configuration, wherein the ends 52 of the loop are electrically connected to the metallic member 50 of the support 48.
  • This is extremely valuable for use in oil tankers because of its intrinsic safe character. This is due to the fact that it is almost impossible to produce a spark in a loop antenna because of the grounded feature at 52. Since safety is an important feature in all oil tank operations, the loop antenna, as shown in FIG. 4, does indeed contribute to increasing tanker fleet safety and still provide improved communications.
  • couplers Although there is described three distinct couplers, it is possible to combine the couplers, for example, using the loop type in an explosive atmosphere and the slot or mono-pole type for interconnecting the cabins.
  • the combination used will be determined by the location and communication requirements of the various areas on the ship or other facility.
  • inter-compartment coupling devices for improving communications between chambers.
  • the couplers described included a slot antenna, loop and mono-pole antennas which can easily be fit into partitions forming the chambers. These couplers interconnect the various areas on either side of a partition to facilitate communication between one or more areas by small power transceivers.
  • the term partitions is intended to include decks and communication is of course possible from above deck to below.
  • An inter-compartment coupling device for improving two-way on-board communications between compartments of a ship comprising a mono-pole antenna and means locating the antenna within a partition between compartments so as to provide efficient electrical coupling between the compartments, and the length of the antenna radiator projecting into each compartment is one-quarter of a wave length at the frequency of operation.
  • An inter-compartment coupling device for improving two-way on-board communications between compartments of a ship comprising a loop antenna, one loop on either side of a partition separating the compartments and conductively connected together, means locating and fixing the antenna to said partition, and said antenna having an overall length one-half of a wave length at the frequency of operation.
  • the coupler according to claim 2 wherein the means for locating and fixing said antenna in the partition includes a threaded support member and nut, the threaded support having a solid insulation portion and a metallic portion.
  • Means for improving two-way on-board communications from one part of a ship to another comprising:
  • transceiver means for communicating between compartments separated by at least one partition
  • mono-pole antenna means positioned within the partition and extending on both sides of the partition for improving two-way communications of said transceiver means by introducing efficient electrical coupling between the compartments.
  • Means for improving two-way on-board communications from one part of a ship to another comprising:
  • transceiver means for communicating between compartments separated by at least one partition; and loop antenna means positioned within the partition and extending on both sides of the partition for improving twoway communications of said transceiver means by in troducing efficient electrical coupling between the compartments.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Details Of Aerials (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radio Relay Systems (AREA)
  • Support Of Aerials (AREA)
  • Coating Apparatus (AREA)
  • Closures For Containers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
US885773A 1969-12-17 1969-12-17 Inter-compartment coupling device Expired - Lifetime US3657652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88577369A 1969-12-17 1969-12-17

Publications (1)

Publication Number Publication Date
US3657652A true US3657652A (en) 1972-04-18

Family

ID=25387662

Family Applications (1)

Application Number Title Priority Date Filing Date
US885773A Expired - Lifetime US3657652A (en) 1969-12-17 1969-12-17 Inter-compartment coupling device

Country Status (10)

Country Link
US (1) US3657652A (fr)
JP (1) JPS5124210B1 (fr)
BE (1) BE760441A (fr)
CH (1) CH518039A (fr)
DE (1) DE2061475A1 (fr)
ES (1) ES386519A1 (fr)
FR (1) FR2070903B1 (fr)
GB (1) GB1319412A (fr)
NL (1) NL7018004A (fr)
NO (1) NO130136B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092613U (fr) * 1973-12-28 1975-08-05
US5099252A (en) * 1989-12-08 1992-03-24 Larsen Electronics, Inc. Mobile cellular antenna system
US5463405A (en) * 1994-05-20 1995-10-31 Valor Enterprises, Inc. Cellular telephone coupling network
US5600333A (en) * 1995-01-26 1997-02-04 Larsen Electronics, Inc. Active repeater antenna assembly
US5898408A (en) * 1995-10-25 1999-04-27 Larsen Electronics, Inc. Window mounted mobile antenna system using annular ring aperture coupling
US6172651B1 (en) 1995-10-25 2001-01-09 Larsen Electronics, Inc. Dual-band window mounted antenna system for mobile communications
US20050020224A1 (en) * 2001-11-09 2005-01-27 Marcel Locatelli Passive device for increasing the transmission effectiveness of radio-frequency systems
US20070205946A1 (en) * 2006-03-03 2007-09-06 Buris Nicholas E Passive repeater for radio frequency communications
US20140340272A1 (en) * 2013-05-17 2014-11-20 Medtronic, Inc. Telemetry extension cable
US11817934B2 (en) 2019-04-08 2023-11-14 Nsk Ltd. Wireless communication system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368766A1 (fr) * 1976-10-19 1978-05-19 Automatisme Cie Gle Systeme de transmission d'alarme a partir d'un detecteur
DE3000958C2 (de) * 1980-01-12 1984-04-26 ANT Nachrichtentechnik GmbH, 7150 Backnang Hausnotrufsystem mit Fernauslösung
US4747158A (en) * 1985-01-22 1988-05-24 Data Products New England, Inc. Cordless communications system
GB2202414A (en) * 1987-03-10 1988-09-21 Oxley Dev Co Ltd Transmission of power and/or data
JPS6464921A (en) * 1987-09-01 1989-03-10 Nitto Denko Corp Buffer device for workpiece conveyance
JPH01187114A (ja) * 1988-01-21 1989-07-26 Nippon Filing Co Ltd 収納装置
GB9311042D0 (en) * 1993-05-28 1993-07-14 Barns Brae Technology Limited Communication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559613A (en) * 1946-03-04 1951-07-10 Farnsworth Res Corp Television distribution system
US2981947A (en) * 1957-09-24 1961-04-25 Rca Corp Coupling device for slot antenna
US3403403A (en) * 1966-03-08 1968-09-24 Army Usa Antenna filter window

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559613A (en) * 1946-03-04 1951-07-10 Farnsworth Res Corp Television distribution system
US2981947A (en) * 1957-09-24 1961-04-25 Rca Corp Coupling device for slot antenna
US3403403A (en) * 1966-03-08 1968-09-24 Army Usa Antenna filter window

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092613U (fr) * 1973-12-28 1975-08-05
US5099252A (en) * 1989-12-08 1992-03-24 Larsen Electronics, Inc. Mobile cellular antenna system
US5155494A (en) * 1989-12-08 1992-10-13 Larsen Electronics, Inc. Vehicle antenna system
USRE36076E (en) * 1989-12-08 1999-02-02 Larsen Electronics, Inc. Vehicle antenna system
US5463405A (en) * 1994-05-20 1995-10-31 Valor Enterprises, Inc. Cellular telephone coupling network
US5600333A (en) * 1995-01-26 1997-02-04 Larsen Electronics, Inc. Active repeater antenna assembly
US5898408A (en) * 1995-10-25 1999-04-27 Larsen Electronics, Inc. Window mounted mobile antenna system using annular ring aperture coupling
US6172651B1 (en) 1995-10-25 2001-01-09 Larsen Electronics, Inc. Dual-band window mounted antenna system for mobile communications
US20050020224A1 (en) * 2001-11-09 2005-01-27 Marcel Locatelli Passive device for increasing the transmission effectiveness of radio-frequency systems
US20070182650A1 (en) * 2001-11-09 2007-08-09 Commissariat A L'energie Atomique Passive device for increasing the transmission efficiency of radio-frequency systems
US7262743B2 (en) * 2001-11-09 2007-08-28 Commissariat A L'energie Atomique Passive device for increasing the transmission efficiency of radio-frequency systems
US7564414B2 (en) 2001-11-09 2009-07-21 Messier-Bugatti Passive device for increasing the transmission efficiency of radio-frequency systems
US20070205946A1 (en) * 2006-03-03 2007-09-06 Buris Nicholas E Passive repeater for radio frequency communications
US7429953B2 (en) 2006-03-03 2008-09-30 Motorola, Inc. Passive repeater for radio frequency communications
US20140340272A1 (en) * 2013-05-17 2014-11-20 Medtronic, Inc. Telemetry extension cable
US9035844B2 (en) * 2013-05-17 2015-05-19 Medtronic, Inc. Telemetry extension cable
US11817934B2 (en) 2019-04-08 2023-11-14 Nsk Ltd. Wireless communication system

Also Published As

Publication number Publication date
NO130136B (fr) 1974-07-08
DE2061475A1 (de) 1972-05-25
FR2070903B1 (fr) 1976-07-23
FR2070903A1 (fr) 1971-09-17
JPS5124210B1 (fr) 1976-07-22
ES386519A1 (es) 1973-04-01
CH518039A (de) 1972-01-15
BE760441A (fr) 1971-06-17
NL7018004A (fr) 1971-06-21
GB1319412A (en) 1973-06-06

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ITT CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606

Effective date: 19831122

AS Assignment

Owner name: U.S. HOLDING COMPANY, INC., C/O ALCATEL USA CORP.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE 3/11/87;ASSIGNOR:ITT CORPORATION;REEL/FRAME:004718/0039

Effective date: 19870311

AS Assignment

Owner name: MACKAY COMMUNICATIONS, INC., CELWAVE SYSTEMS, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:U.S. HOLDING COMPANY, INC.;REEL/FRAME:004704/0727

AS Assignment

Owner name: ALCATEL USA, CORP.,STATELESS

Free format text: CHANGE OF NAME;ASSIGNOR:U.S. HOLDING COMPANY, INC.;REEL/FRAME:004827/0276

Effective date: 19870910

Owner name: ALCATEL USA, CORP.

Free format text: CHANGE OF NAME;ASSIGNOR:U.S. HOLDING COMPANY, INC.;REEL/FRAME:004827/0276

Effective date: 19870910