CA475597A - Automatic garage door - Google Patents

Automatic garage door

Info

Publication number
CA475597A
CA475597A CA475597A CA475597DA CA475597A CA 475597 A CA475597 A CA 475597A CA 475597 A CA475597 A CA 475597A CA 475597D A CA475597D A CA 475597DA CA 475597 A CA475597 A CA 475597A
Authority
CA
Canada
Prior art keywords
garage door
automatic garage
automatic
door
garage
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
Application number
CA475597A
Other languages
French (fr)
Inventor
Martin Donat
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA475597A publication Critical patent/CA475597A/en
Expired legal-status Critical Current

Links

CA475597A Automatic garage door Expired CA475597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA475597T

Publications (1)

Publication Number Publication Date
CA475597A true CA475597A (en) 1951-07-31

Family

ID=35609585

Family Applications (1)

Application Number Title Priority Date Filing Date
CA475597A Expired CA475597A (en) Automatic garage door

Country Status (1)

Country Link
CA (1) CA475597A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923541A (en) * 1958-04-14 1960-02-02 Glenn P Gessell Safety overhead door operator
US4191237A (en) * 1977-10-28 1980-03-04 Voege Clayton B Garage door operator
US5040332A (en) * 1988-07-08 1991-08-20 Aquilina Anthony G Pneumatic door operator
US8590209B1 (en) 2012-09-27 2013-11-26 The Chamberlain Group, Inc. Air spring counterbalance

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923541A (en) * 1958-04-14 1960-02-02 Glenn P Gessell Safety overhead door operator
US4191237A (en) * 1977-10-28 1980-03-04 Voege Clayton B Garage door operator
US5040332A (en) * 1988-07-08 1991-08-20 Aquilina Anthony G Pneumatic door operator
US8590209B1 (en) 2012-09-27 2013-11-26 The Chamberlain Group, Inc. Air spring counterbalance
US8813429B2 (en) 2012-09-27 2014-08-26 The Chamberlain Group, Inc. Method of using an air spring counterbalance
US9103149B2 (en) 2012-09-27 2015-08-11 The Chamberlain Group, Inc. Air spring counterbalance
US9428948B2 (en) 2012-09-27 2016-08-30 The Chamberlain Group, Inc. Air spring counterbalance

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