US3881235A - Steps, stairs and the like, and a method of constructing same - Google Patents

Steps, stairs and the like, and a method of constructing same Download PDF

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Publication number
US3881235A
US3881235A US284456A US28445672A US3881235A US 3881235 A US3881235 A US 3881235A US 284456 A US284456 A US 284456A US 28445672 A US28445672 A US 28445672A US 3881235 A US3881235 A US 3881235A
Authority
US
United States
Prior art keywords
pipe
steps
portions
frame structure
stairs
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
US284456A
Other languages
English (en)
Inventor
Sven Gunnar Svenstam
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.)
Granges Essem AB
Original Assignee
Granges Essem AB
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 Granges Essem AB filed Critical Granges Essem AB
Application granted granted Critical
Publication of US3881235A publication Critical patent/US3881235A/en
Priority to US05/616,397 priority Critical patent/US3993122A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • F28F21/063—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits for domestic or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making

Definitions

  • the system of pipes for conducting the heating medium is constructed of straight lengths of pipe placed transversely and longitudinally of the steps and connected together by means of pipe couplings or the like.
  • each pipe in the construction of steps or stairs of the aforementioned type each pipe is preformed to a permanent shape so as to present interconnected generally arcuate portions and extends substantially in the long direction of the steps or stairs in a tortuous path such as to present substantially arcuate interconnected looped portions located within the confines of the steps, stairs and the like and curving alternately towards either side of the steps, the pipe being arranged in planes which extend generally parallel with the step treads and risers under which it passes and at the points where it passes between tread and riser extends generally perpendicular to the long direction of said steps.
  • FIGS. 4-6 illustrate in perspective three forms to which the pipes laid in the steps can be permanently pre-shaped before being embodied in the steps.
  • each pipe 16 is connected to an inlet 17 and the other end to an outlet 18 for heating medium.
  • the pipes 16 extend generally in the longidudinal direction of the flight of steps 10 in such a tortuous path as to present within the confines of the steps substantially U-shaped interconnected looped portions 19, 20 which extend alternately towards either side of the steps.
  • Each of the looped portions 19, 20 is located in a plane which lies generally parallel with the surface of its respective riser or tread, the looped portions located beneath the tread surfaces 14 being identified by the reference numeral 19 and the looped portions located inwardly of the riser surface 15 with the reference numeral 20.
  • the pipes 16 extend substantially perpendicular to the longitudinal direction of the flight of steps 10 at the junctions 21 between the treads and risers.
  • the arcuate pipe portions forming the looped portions in the tread can be straightened out slightly, and/or the arcuate pipe portions forming the looped portions in the risers may be more tightly bent, and/or a larger portion of each turn of the helically wound pipe may be used to form the looped portions in the treads and a smaller portion of each turn may be used to form the looped portions in the riser.
  • said preshaped pipe comprises substantially helically wound pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Road Paving Structures (AREA)
US284456A 1971-08-27 1972-08-28 Steps, stairs and the like, and a method of constructing same Expired - Lifetime US3881235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/616,397 US3993122A (en) 1971-08-27 1975-09-24 Steps, stairs and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7110908A SE372962B (da) 1971-08-27 1971-08-27

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/616,397 Continuation-In-Part US3993122A (en) 1971-08-27 1975-09-24 Steps, stairs and the like

Publications (1)

Publication Number Publication Date
US3881235A true US3881235A (en) 1975-05-06

Family

ID=20293037

Family Applications (1)

Application Number Title Priority Date Filing Date
US284456A Expired - Lifetime US3881235A (en) 1971-08-27 1972-08-28 Steps, stairs and the like, and a method of constructing same

Country Status (8)

Country Link
US (1) US3881235A (da)
CA (1) CA988316A (da)
CH (1) CH553307A (da)
DE (1) DE2241110A1 (da)
DK (1) DK141455B (da)
FI (1) FI51732C (da)
NO (1) NO134266C (da)
SE (1) SE372962B (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013109151A1 (en) * 2012-01-17 2013-07-25 Ulmatec Pyro As Method and system for de-icing of marine structures
US11155970B2 (en) 2017-10-16 2021-10-26 Nvent Services Gmbh Suspension mounted heating system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906939A1 (de) * 1989-03-02 1990-09-13 Herbst Donald Verfahren zum verlegen von flexiblen kunststoffrohren

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157358A (en) * 1962-10-08 1964-11-17 Itt Snow melting control apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157358A (en) * 1962-10-08 1964-11-17 Itt Snow melting control apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013109151A1 (en) * 2012-01-17 2013-07-25 Ulmatec Pyro As Method and system for de-icing of marine structures
US11155970B2 (en) 2017-10-16 2021-10-26 Nvent Services Gmbh Suspension mounted heating system

Also Published As

Publication number Publication date
NO134266B (da) 1976-05-31
DK141455C (da) 1980-09-22
SE372962B (da) 1975-01-20
FI51732B (da) 1976-11-30
FI51732C (fi) 1977-03-10
DK141455B (da) 1980-03-17
NO134266C (da) 1976-09-08
DE2241110A1 (de) 1973-03-01
CH553307A (de) 1974-08-30
CA988316A (en) 1976-05-04

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