Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
98 words
A roof support assembly for a roof, comprising: (a) roof support pin including an elongate rod having a non-circular cross-section to provide corners, the rod being twisted in one direction so that the corners provide longitudinal substantially helical fins, and (b) a roof support plate held stationary relative to the roof and provided with an aperture in which the rod is received, the aperture having a cross-section with corners that engage corners of the rod cross-section for postitively turning the rod and rod corners into the roof strata as the rod is moved relatively longitudinally through the aperture.
Claim 2
Dependent Claim
98 words
A roof support assembly for a roof, comprising: (a) roof support pin including an elongate rod having a non-circular cross-section to provide corners, the rod being twisted in one direction so that the corners provide longitudinal substantially helical fins, and (b) a roof support plate held stationary relative to the roof and provided with an aperture in which the rod is received, the aperture having a cross-section with corners that engage corners of the rod cross-section for postitively turning the rod and rod corners into the roof strata as the rod is moved relatively longitudinally through the aperture.
Claim 3
Dependent Claim
59 words
A roof support assembly as defined in claim 1, in which: (c) the plate aperture is provided with substantially the same cross-section as the rod cross-section, and has corners that engage the corners of the rod for positively turning the rod and rod corners into the roof strata as the rod is moved relatively longitudinally through the plate aperture.
Claim 4
Dependent Claim
54 words
A roof support assembly as defined in claim 2, in which: (d) the rod cross-section and the roof support plate aperture cross-section are substantially square for providing compatible four corners that interengage, the rod being positively turned by the interengagement of the corners as the rod is moved relatively longitudinally through the plate aperture.
Claim 5
Dependent Claim
54 words
A roof support assembly as defined in claim 2, in which: (d) the rod cross-section and the roof support plate aperture cross-section are substantially triangular for providing compatible three corners that interengage, the rod being positively turned by the interengagement of the corners as the rod is moved relatively longitudinally through the plate aperture.
Claim 6
Dependent Claim
55 words
A roof support assembly as defined in claim 2, in which: (d) the rod cross-section and the roof support plate aperture cross-section are substantially a cruxiform for providing compatible four corners that interengage, the rod being positively turned by the interengagement of the corners as the rod is moved relatively longitudinally through the plate aperture.
Claim 7
Dependent Claim
50 words
A roof support assembly as defined in claim 1, in which: (c) the roof support plate is provided with means for gripping the roof and precluding turning of the plate relative to the rod as the rod is moved longitudinally through the plate aperture and twisted into the roof strata.
Claim 8
Dependent Claim
46 words
A roof support assembly as defined in claim 6, in which: (d) the roof support plate means gripping the roof precludes relative turning of the plate and rod after the rod is inserted into the roof, and precludes untwisting of the rod from the roof strata.
Claim 9
Dependent Claim
24 words
A roof support assembly as defined in claim 7, in which: (e) the plate means for gripping the roof is upturned from the plate.
Claim 10
Dependent Claim
71 words
A roof support assembly as defined in claim 1, for a roof having a preformed longitudinal hole of a smaller cross-sectional dimension than the rod cross-section dimension, in which: (c) the rod corners cut into the wall of the preformed hole to provide helical grooves for gripping the roof strata as the rod is positively turned by the plate aperture incident to insertion of the rod longitudinally into the preformed hole.
Claim 11
Dependent Claim
59 words
A roof support assembly as defined in claim 1, in which: (c) the rod forms its own longitudinal hole in the roof and the rod corners cut into the roof strata to provide helical grooves for gripping the roof strata as the rod is positively turned by the plate aperture incident to insertion of the rod into the roof.