Door latch control apparatus with independent actuators

Details Door latch control apparatus with independent actuators Door latch control apparatus with independent actuators

1992-01-22

1994-08-23

Nicholson, Eric K.

Closure fasteners

Bolts

Multiple

292201, 292DIG62, 292 92, 70279, E05C 316

Patent

active

053401719

ABSTRACT:
A door latch control apparatus for use on a panic exit door allowing the door to be unlatched either manually or electrically is disclosed. Manual latch retraction is accomplished by pushing inwardly a push bar. Electrical latch retraction is accomplished by energizing a solenoid. A unique linkage system is provided to allow for the independent operation of the manual and electrical latch retraction. The apparatus also provides for the door to be dogged, i.e., securing the latch in the unlatched position, either manually or electrically. Manual dogging may be accomplished with the use of a fail safe dogging mechanism. Electrical dogging is accomplished by leaving the solenoid energized and thus the latch retracted.

REFERENCES:
patent: 278066 (1883-05-01), Wernert
patent: 333674 (1886-01-01), Rogers
patent: 786668 (1905-04-01), Nussbeck
patent: 805411 (1905-11-01), Clark
patent: 824173 (1906-06-01), Clark
patent: 919269 (1909-04-01), Voight
patent: 943973 (1909-12-01), Hope et al.
patent: 975456 (1916-11-01), Prevost
patent: 984458 (1911-02-01), Witham
patent: 986816 (1911-03-01), Girrens
patent: 990358 (1911-04-01), Hodgkinson
patent: 1010689 (1911-12-01), Rogers
patent: 1014960 (1912-01-01), Ericson
patent: 1016502 (1912-02-01), Hoyaux
patent: 1039734 (1912-10-01), Hannum
patent: 1056937 (1913-03-01), Pratt
patent: 1069075 (1913-07-01), Voight
patent: 1094677 (1914-04-01), Page
patent: 1105252 (1914-07-01), Carstens
patent: 1140343 (1915-05-01), Arens
patent: 1165436 (1915-12-01), Mochau
patent: 1168792 (1916-01-01), Dyer
patent: 1197111 (1916-09-01), Dyer
patent: 1306560 (1919-06-01), Page
patent: 1346670 (1920-07-01), Page
patent: 1441336 (1923-01-01), Flowers
patent: 1539350 (1925-05-01), Clark
patent: 1605989 (1926-11-01), Rucker
patent: 1704748 (1929-03-01), Kusch
patent: 2104618 (1938-01-01), Hasenfuss
patent: 2146968 (1939-02-01), Macagno
patent: 2320298 (1943-05-01), Phillips
patent: 2328936 (1943-09-01), White
patent: 2426041 (1947-08-01), Moorhouse
patent: 2732237 (1956-01-01), Kihn et al.
patent: 2765648 (1956-10-01), Hatcher
patent: 2785914 (1957-03-01), Thomas et al.
patent: 2871050 (1959-01-01), Dickinson
patent: 2945372 (1960-07-01), Reed
patent: 2962889 (1960-12-01), McConnell
patent: 2992846 (1961-07-01), Schwanz et al.
patent: 3024053 (1962-03-01), Cox et al.
patent: 3083560 (1963-04-01), Scott
patent: 3097007 (1963-07-01), Eichacker et al.
patent: 3206656 (1965-09-01), Musgrave
patent: 3228069 (1966-01-01), Frueh
patent: 3432631 (1969-03-01), Deutscher et al.
patent: 3464728 (1969-09-01), Ruckel et al.
patent: 3521921 (1970-07-01), Miyazaki
patent: 3576119 (1971-04-01), Harris
patent: 3583740 (1971-06-01), Armstrong
patent: 3614145 (1971-10-01), Zawadzki
patent: 3636740 (1972-01-01), Rollins
patent: 3663047 (1973-05-01), Zawadzki
patent: 3730574 (1973-05-01), Zawadzki
patent: 3731963 (1953-05-01), Pond
patent: 3743898 (1973-07-01), Sturman
patent: 3751086 (1973-08-01), Geringer
patent: 3753316 (1973-08-01), Savarieau et al.
patent: 3767238 (1973-10-01), Zawadzki
patent: 3776582 (1973-12-01), Balducci
patent: 3788687 (1974-01-01), Zawadzki
patent: 3805451 (1974-04-01), Miller
patent: 3819213 (1974-06-01), Vanderburgh
patent: 3854763 (1974-12-01), Zawadzki et al.
patent: 3869159 (1975-03-01), Eads
patent: 3877262 (1975-04-01), Williams
patent: 3935614 (1976-02-01), Pannone et al.
patent: 3973744 (1976-08-01), Hintzman
patent: 4006471 (1977-02-01), Pappas
patent: 4081980 (1978-04-01), Hightower
patent: 4083590 (1978-04-01), Folger
patent: 4102161 (1978-07-01), Proefrock
patent: 4130306 (1978-12-01), Brkic
patent: 4167280 (1979-09-01), Godec et al.
patent: 4181335 (1980-01-01), Thoren
patent: 4185859 (1980-01-01), Cunningham
patent: 4225163 (1980-09-01), Hubbard et al.
patent: 4257631 (1981-03-01), Logan, Jr.
patent: 4295673 (1981-10-01), Miller
patent: 4324425 (1982-04-01), Logan
patent: 4327344 (1982-04-01), Luckenbach
patent: 4328985 (1981-05-01), Logan
patent: 4384738 (1983-05-01), Floyd
patent: 4427223 (1984-01-01), Godec et al.
patent: 4437693 (1984-03-01), Godec
patent: 4439808 (1984-03-01), Gillham
patent: 4458928 (1984-07-01), Hirshbein
patent: 4466643 (1984-08-01), Godec et al.
patent: 4488378 (1984-12-01), Symon
patent: 4491354 (1985-01-01), Williams
patent: 4501203 (1985-02-01), Lyngstrup
patent: 4506407 (1985-03-01), Downey
patent: 4509347 (1985-04-01), Young
patent: 4540207 (1985-09-01), Klasen et al.
patent: 4545606 (1985-10-01), Vodra
patent: 4546628 (1985-10-01), Takasaki
patent: 4573238 (1986-03-01), Phillips
patent: 4598494 (1986-07-01), Tsuji et al.
patent: 4598939 (1986-07-01), Krupicka et al.
patent: 4601499 (1986-07-01), Kim
patent: 4624490 (1986-11-01), Miller
patent: 4627649 (1986-12-01), Leplat
patent: 4631528 (1986-12-01), Handel et al.
patent: 4656690 (1987-04-01), Katagiri et al.
patent: 4680891 (1987-06-01), Perkins
patent: 4702095 (1987-10-01), Ben-Asher
patent: 4709950 (1987-12-01), Zortman
patent: 4715146 (1987-12-01), Atsumi et al.
patent: 4741563 (1988-05-01), Cohrs
patent: 4747629 (1988-05-01), Miller
patent: 4785286 (1988-11-01), Martin
patent: 4796931 (1989-01-01), Heid
patent: 4801163 (1989-01-01), Miller
patent: 4839988 (1989-06-01), Betts et al.
patent: 4865367 (1989-09-01), Choi
patent: 4875722 (1989-10-01), Miller et al.
patent: 4881766 (1989-11-01), Schmidt
patent: 4927193 (1990-05-01), Miller
patent: 4961330 (1990-10-01), Evans
patent: 4968070 (1990-11-01), Choi
patent: 4976476 (1990-12-01), Cross et al.
patent: 5011199 (1991-04-01), Lowe et al.
patent: 5016927 (1991-05-01), Toledo
patent: 5169185 (1992-12-01), Slaybaugh et al.

Affiliated with

Also associated with

Rating

Door latch control apparatus with independent actuators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Door latch control apparatus with independent actuators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door latch control apparatus with independent actuators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-498405