HOLLIS M BERRY
Broker in Middleboro, MA
License number
Massachusetts 92157
Issued Date
Oct 1, 1975
Expiration Date
Jul 4, 1991
Type
Broker
Address
Address
Middleboro, MA 02347
Personal information
See more information about HOLLIS M BERRY at radaris.comName
Address
Phone
1159 Cherry St, Lakeville, MA 02347
Professional information
Yieldable Door Body
US Patent:
3979872, Sep 14, 1976
Filed:
Mar 2, 1972
Appl. No.:
5/231205
Inventors:
Henry R. Gilchrist - Burlington MA
Hollis M. Berry - Lakeville MA
Hollis M. Berry - Lakeville MA
Assignee:
Eckel Industries, Inc. - Cambridge MA
International Classification:
E04C 200, E06B 300
US Classification:
52624
Abstract:
A door body formed largely of yieldable material has two panels spaced apart with a hollow separator between them that is rectangular in cross section and has two pairs of oppositely disposed sides and two dividers therein at right angles to each other that thereby provide four enclosed openings. This construction holds the paneled portion of the door body firm, especially at the outer edges, yet is flexible enough to permit some distortion when the door is forcibly opened as by striking it vigorously with a moving truck.