Door closer assembly

1. A door closer assembly mountable on a mounting surface with a plurality of pre-existing mounting holes, the door closer assembly comprising:

a closer housing having first and second opposed housing ends;

a first mounting bracket configured to retain the closer housing between the first housing end and the second housing end, and comprising a first securing portion and at least one first opening alignable with at least one of the pre-existing mounting holes in the mounting surface; and

a second mounting bracket configured to retain the closer housing between the first housing end and the second housing end, and comprising a second securing portion and at least one second opening alignable with at least another one of the pre-existing mounting holes in the mounting surface, wherein the closer housing is slidable along the first and second securing portions.

2. The door closer assembly of claim 1 , wherein the at least one first opening is a pattern of first openings in the first mounting bracket, and the at least one second opening is a pattern of second openings in the second mounting bracket, and the pattern of second openings is a mirror image of the pattern of first openings.

3. The door closer assembly of claim 1 , wherein each of the first and second securing portions is configured to support the closer housing and to restrict the closer housing to movement along a longitudinal axis of the closer housing.

4. The door closer assembly of claim 3 , wherein the first mounting bracket further comprises a first base from which the first securing portion extends, and the second mounting bracket further comprises a second base from which the second securing portion extends, wherein the first securing portion and the first base cooperatively form a first C-shaped structure, the second securing portion and the second base cooperatively form a second C-shaped structure, and the closer housing extends through an interior of each of the first and second C-shaped structures.

5. The door closer assembly of claim 4 , wherein the first securing portion comprises a first pair of arms, each arm in the first pair of arms extending from the first base to a first free end configured as a securing lip, and wherein the second securing portion comprises a second pair of arms, each arm in the second pair extending from the second base to a second free end configured as a securing lip.

6. The door closer assembly of claim 5 , wherein the closer housing has at least one abutment surface, and the door closer assembly further comprises at least one fixing element pressing against the at least one abutment surface to secure the closer housing in a final position.

7. The door closer assembly of claim 6 , wherein the at least one fixing element is threadingly engaged in each of the first and second securing portions.

8. The door closer assembly of claim 7 , wherein the fixing elements are angled inwardly at an acute angle relative to the mounting surface so as to press the closer housing against the first base of the first mounting bracket and the second base of the second mounting bracket.

9. The door closer assembly of claim 8 , wherein the at least one abutment surface is a pair of abutment surfaces positioned opposed and aligned symmetrically relative to each other.

10. The door closer assembly of claim 9 , wherein each of the pair of abutment surfaces extends continuously along substantially an entire length of the closer housing.

11. The door closer assembly of claim 3 , wherein the first and second securing portions are configured to form an interference fit with the closer housing.

12. A door closer assembly mountable on a mounting surface with a plurality of pre-existing mounting points, the door closer assembly comprising:

a first mounting bracket comprising a first base, a first securing portion extending from the first base, and a pattern of first openings extending through the first base, at least one first opening of the pattern of first openings being positionable over at least one of the plurality of pre-existing mounting points to fix the first mounting bracket to the mounting surface;

a second mounting bracket comprising a second base, a second securing portion extending from the second base, and a pattern of second openings extending through the second base, at least one second opening of the pattern of second openings being positionable over at least another one of the plurality of pre-existing mounting points to fix the second mounting bracket to the mounting surface; and

a closer housing slidable relative to the first and second mounting brackets along the first and second securing portions in a preassembled state, and fixed to the first and second mounting brackets in an assembled state.

13. The door closer assembly of claim 12 , wherein the pattern of second openings is a mirror image of the pattern of first openings.

14. The door closer assembly of claim 12 , wherein the first securing portion and the second securing portion cooperatively restrict the closer housing to movement along a longitudinal axis of the closer housing in the preassembled state.

15. The door closer assembly of claim 14 , wherein each of the first and second securing portions comprises a pair of arms, wherein each arm comprises has a free end configured as a securing lip, and wherein the securing lips of each of the first and second securing portions extend towards each other.

16. A door closer assembly mountable on a mounting surface with a plurality of pre-existing mounting points, the door closer assembly comprising:

a door closer spaced from the mounting surface;

a first bracket mounted to the mounting surface via one or more of the plurality of pre-existing mounting points; and

a second bracket spaced from the first bracket and mounted to the mounting surface via another one or more of the plurality of pre-existing mounting points, wherein the first and second brackets are configured to restrain movement of the door closer to a direction along a longitudinal axis of the door closer in a preassembled state, and wherein the door closer is fixed to the first and second brackets in an assembled state.

17. The door closer assembly of claim 16 , wherein the first bracket comprises a pattern of first openings aligned with the one or more of the plurality of pre-existing mounting points, and the second bracket comprises a pattern of second openings in the second mounting bracket.

18. The door closer assembly of claim 16 , wherein each of the first and second brackets comprises a pair of arms extending from a base.

19. The door closer assembly of claim 18 , wherein the closer housing is fixed between the pair of arms of the first and second brackets in the assembled state.