CA2448331A1 - Automatic dispenser apparatus - Google Patents

Automatic dispenser apparatus Download PDF

Info

Publication number
CA2448331A1
CA2448331A1 CA002448331A CA2448331A CA2448331A1 CA 2448331 A1 CA2448331 A1 CA 2448331A1 CA 002448331 A CA002448331 A CA 002448331A CA 2448331 A CA2448331 A CA 2448331A CA 2448331 A1 CA2448331 A1 CA 2448331A1
Authority
CA
Canada
Prior art keywords
dispenser
user
capacitance
control apparatus
sensor
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.)
Granted
Application number
CA002448331A
Other languages
French (fr)
Other versions
CA2448331C (en
Inventor
Lawrence R. Hansen
Thomas Michael Leiterman
Larry Allen Schotz
William G. Haen
Alan P Paal
Abtin Spantman
Patrick Gerald Mccutcheon
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.)
Alwin Manufacturing Co Inc
Original Assignee
Alwin Manufacturing Co Inc
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
Priority claimed from US10/160,863 external-priority patent/US6977588B2/en
Priority to CA002390411A priority Critical patent/CA2390411A1/en
Priority to US10/699,457 priority patent/US6903654B2/en
Priority claimed from US10/699,457 external-priority patent/US6903654B2/en
Application filed by Alwin Manufacturing Co Inc filed Critical Alwin Manufacturing Co Inc
Priority to CA002448331A priority patent/CA2448331C/en
Publication of CA2448331A1 publication Critical patent/CA2448331A1/en
Application granted granted Critical
Publication of CA2448331C publication Critical patent/CA2448331C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3606—The cutting devices being motor driven
    • A47K10/3612—The cutting devices being motor driven with drive and pinch rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K2010/3668—Detection of the presence of a user

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Primary Cells (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

The invention is directed to improved automatic dispenser apparatus for dispensing sheet material and the like without contact between a user and the dispenser. Proximity detection apparatus is provided to detect the presence of a user in a detection zone generated outside the dispenser. Control apparatus controls actuation of the dispenser in response to the detected user. Preferred forms of the proximity detector include a sensor and a signal detection circuit operatively connected to the sensor. The sensor includes conductors configured to have a capacitance and positioned such that the capacitance is changed by the presence of a user within the detection zone. The signal detection circuit detects the change in capacitance and is provided with an oscillator having a frequency which is affected by the sensor capacitance and a differential frequency discriminator which detects changes in the oscillator frequency. The control apparatus receives the detected frequency change and generates a signal provided to actuate the dispenser to dispense the material. The dispenser control apparatus controls dispenser operation responsive to decreases in battery voltage which occur during the life cycle of the batteries and controls dispenser operation when the batteries near the end of such life cycle. Such control apparatus may be used with any type of battery powered dispenser, including hands-free dispensers and dispensers actuated by direct physical contact with the user.
CA002448331A 2002-06-03 2003-11-05 Automatic dispenser apparatus Expired - Fee Related CA2448331C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002390411A CA2390411A1 (en) 2002-06-03 2002-06-11 Automatic dispenser apparatus
US10/699,457 US6903654B2 (en) 2002-06-03 2003-10-31 Automatic dispenser apparatus
CA002448331A CA2448331C (en) 2002-06-03 2003-11-05 Automatic dispenser apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/160,863 US6977588B2 (en) 2002-06-03 2002-06-03 Automatic dispenser apparatus
US10/699,457 US6903654B2 (en) 2002-06-03 2003-10-31 Automatic dispenser apparatus
US10/699,457 2003-10-31
CA002448331A CA2448331C (en) 2002-06-03 2003-11-05 Automatic dispenser apparatus

Publications (2)

Publication Number Publication Date
CA2448331A1 true CA2448331A1 (en) 2005-04-30
CA2448331C CA2448331C (en) 2007-05-08

Family

ID=34713936

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002448331A Expired - Fee Related CA2448331C (en) 2002-06-03 2003-11-05 Automatic dispenser apparatus

Country Status (1)

Country Link
CA (1) CA2448331C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086378A1 (en) * 2019-10-31 2021-05-06 Kimberly-Clark Worldwide, Inc. Electronic towel dispenser with low power mode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086378A1 (en) * 2019-10-31 2021-05-06 Kimberly-Clark Worldwide, Inc. Electronic towel dispenser with low power mode

Also Published As

Publication number Publication date
CA2448331C (en) 2007-05-08

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed