Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
210 words
A protective device for warning the operator of a moving vehicle of the close proximity of an obstruction, said device comprising: a support member including an elongated tube having a plurality of longitudinally spaced openings therein and an inner surface presenting electrically conductive contact means; means for rigidly mounting said member on the vehicle adjacent an exterior portion thereof to be protected from damage; shiftable bumper structure carried by said member and adapted to be disposed for engagement with the obstruction; a shiftable, electrically conductive contact bar disposed within said tube and having a normal position in spaced relationship to said contact means and an actuated position in engagement therewith; means interconnecting said structure and said bar for movement in unison to shift the bar to its actuated position upon engagement of the structure with the obstruction, said interconnecting means including a plurality of support arms rigid with said bar and spaced longitudinally thereof, extending outwardly therefrom through respective openings, and supporting said bumper structure in spaced relationship to said tube; and an electrically operable arm for signalling the operator and electrically connected in a series energizing circuit with said bar and said contact means whereby, when the bar is shifted to its actuated position, the alarm is rendered operable.
Claim 2
Dependent Claim
210 words
A protective device for warning the operator of a moving vehicle of the close proximity of an obstruction, said device comprising: a support member including an elongated tube having a plurality of longitudinally spaced openings therein and an inner surface presenting electrically conductive contact means; means for rigidly mounting said member on the vehicle adjacent an exterior portion thereof to be protected from damage; shiftable bumper structure carried by said member and adapted to be disposed for engagement with the obstruction; a shiftable, electrically conductive contact bar disposed within said tube and having a normal position in spaced relationship to said contact means and an actuated position in engagement therewith; means interconnecting said structure and said bar for movement in unison to shift the bar to its actuated position upon engagement of the structure with the obstruction, said interconnecting means including a plurality of support arms rigid with said bar and spaced longitudinally thereof, extending outwardly therefrom through respective openings, and supporting said bumper structure in spaced relationship to said tube; and an electrically operable arm for signalling the operator and electrically connected in a series energizing circuit with said bar and said contact means whereby, when the bar is shifted to its actuated position, the alarm is rendered operable.
Claim 3
Dependent Claim
47 words
The protective device as claimed in claim 1, there being yieldable means at said openings shiftably mounting said arms on the tube for movement of the bar therewith in a number of directions toward said inner surface in response to engagement of the structure with said obstruction.
Claim 4
Dependent Claim
37 words
The protective device as claimed in claim 2, there being spring means in engagement with said bumper structure for returning said bar into spaced relationship with said inner surface following engagement of the structure with said obstruction.
Claim 5
Dependent Claim
52 words
The protective device as claimed in claim 3, said yieldable mounting means having an insulating portion thereof projecting into said tube beyond said inner surface, said portion being engageable with said bar to space the same from the inner surface when the bar is returned by the action of said spring means.